GroupDIY

Project Specific Discussions => Filters/Equalizers => Topic started by: elskardio on May 21, 2017, 11:47:02 AM

Title: CA-250 EQ // 3 band Sontec in 500 series format
Post by: elskardio on May 21, 2017, 11:47:02 AM
Hi everyone,

I want to share my latest project. After a few years of using my Sontec clone, I realized I was using only 2-3 band most of the time while tracking or mixing. Also I wanted more channels of this great EQ to be able to use it on multiple sources at the same time. So for the past months I've been working on a 3 band EQ based on the original MEP-250A and I must say I'm really happy with the result. The Low and High band can be switched to Shelving by turning the Q pot completely CCW. I'm using a single OPA 2134 for the input & summing amp.

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The CA-250 EQ is now available to order directly from Chambord Audio's website.

For more information, please visit: https://chambordaudio.com



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RECALL SHEET
https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0 (https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0)

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Here's a few pictures  ;)
Cheers

Gabriel (Chambord Audio)

(https://www.dropbox.com/s/ur8zyl5i91j1999/CA250_Pic1.jpg?raw=1)

(https://www.dropbox.com/s/dgyzit89bawup3z/CA250_Pic2.jpg?raw=1)

(https://www.dropbox.com/s/tznfoodiswvykep/CA250_Pic3.jpg?raw=1)

(https://www.dropbox.com/s/iocdjuu9kxhqrba/CA250_Pic4.jpg?raw=1)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: G-Sun on May 21, 2017, 04:00:22 PM
That's a beauty!
What approx. price for a kit, and what in it?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: pvision on May 21, 2017, 04:17:56 PM
Those look amazing.

Nick Froome
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on May 22, 2017, 10:49:03 AM
That's a beauty!
What approx. price for a kit, and what in it?

Thanks for the comment!

I could probably offer Full kit. I'll try to calculate the approximated cost tonight. Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: [silent:arts] on May 22, 2017, 10:52:05 AM
Looking great!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on May 23, 2017, 01:26:36 PM
Consider this an expression of interest in a couple, especially at that price! Lovely design.

 ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: jrasia on May 23, 2017, 02:26:19 PM
Definitely interested in a couple!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: cyrano on May 23, 2017, 04:31:24 PM
Nice! Especially those red boards. Yummy  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on May 23, 2017, 05:15:10 PM
I'd be in for at least 2,  maybe 4.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: pvision on May 23, 2017, 05:16:38 PM
Would you consider doing a PCB + front panel kit?

Nick Froome
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: pvision on May 24, 2017, 07:27:23 PM
Hi Nick, I prefer to stick to full kit.

Also I forgot to calculate the shipping and custom fees I'll have to pay on my end when ordering everything

Problem for everyone outside America & Canada is that we have to pay shipping & customs fees on your shipping & customs fees and so ad infinitum...

Anything sourced from America & Canada ends up 30-50% more expensive by the time we get it and that is additional cost, not added value

Board + panel would ship in a letter

Nick Froome
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on May 24, 2017, 10:27:52 PM
Problem for everyone outside America & Canada is that we have to pay shipping & customs fees on your shipping & customs fees and so ad infinitum...

Anything sourced from America & Canada ends up 30-50% more expensive by the time we get it and that is additional cost, not added value

Board + panel would ship in a letter

Nick Froome

Hi Nick,

if I understand correctly, using Regular Lettermail would save you some customs fees?

The maximum thickness for a letter with Canadapost is 20mm. I could easily fit the full kit in there. A lot of e-commerce uses 18mm cardboard box to ship small product via lettermail so customers benefits from lower shipping cost.

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on May 25, 2017, 08:39:06 AM
Sort of - in the UK at least, customs duty and import VAT are paid on the value of a package. As a full kit would cost more than a smaller kit (with, for example, just the boards and front panel), duty and VAT would be that much greater  and shipping costs would be higher as well.

So it's not the size of the package as such, it's what you've got in it that counts.   :-X

Hi Nick,

if I understand correctly, using Regular Lettermail would save you some customs fees?

The maximum thickness for a letter with Canadapost is 20mm. I could easily fit the full kit in there. A lot of e-commerce uses 18mm cardboard box to ship small product via lettermail so customers benefits from lower shipping cost.


Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on May 25, 2017, 09:16:03 AM
Sort of - in the UK at least, customs duty and import VAT are paid on the value of a package.

I don't mind declaring a lower value on the package. I could put a 100$ value if that helps?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: [silent:arts] on May 25, 2017, 10:02:04 AM
I don't mind declaring a lower value on the package. I could put a 100$ value if that helps?
In a global world I wouldn't do things like this. Customs learned many things, today they have Internet, they use google, they know eBay, and forums. They once wanted me to show them this forum and compared pictures of a build and support thread with the PCBs in the parcel.
In addition we have to show our payment these days.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on May 25, 2017, 11:00:20 AM
In a global world I wouldn't do things like this. Customs learned many things, today they have Internet, they use google, they know eBay, and forums. They once wanted me to show them this forum and compared pictures of a build and support thread with the PCBs in the parcel.
In addition we have to show our payment these days.

Wow! Better stay 100% legit then. Thanks for the heads-up.

I just ordered some 18mm shipping box that would fit Canadapost's lettermail specs. It would lower the shipping cost significantly... around 25$ for the UK in 7 business days with a signature at delivery. I know you might have some customs to pay but at least it would compensate a bit.

Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: Vac11 on May 26, 2017, 11:19:37 AM
Two partial kits for me pleas...

Thank you

M.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: jrasia on May 26, 2017, 01:31:45 PM
Nice!  2 x partials for me.

Any eta on when you can start shipping these?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: elskardio on May 26, 2017, 01:44:43 PM
Any eta on when you can start shipping these?

The moment I have a significant amount of orders, I'll order everything to assemble the kits. Then it should take 2-3 weeks before it ships.
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: TwentyTrees on May 26, 2017, 02:59:29 PM
That's brilliant, thanks very much for being open to the partial kit idea - will be a big help!

I'm still definitely in for 2 (partial) kits.  8)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: buckethead on May 27, 2017, 06:36:13 AM
Nice project!!!

Im in for two partial kits :)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: noulou on May 29, 2017, 06:32:07 AM
This looks great! Well done.
Any chance of getting partial kits without the front panel? I would like to build a +-6db pair.

Nikos
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: elskardio on May 29, 2017, 08:53:29 AM
This looks great! Well done.
Any chance of getting partial kits without the front panel? I would like to build a +-6db pair.

Nikos

No sorry
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: living sounds on May 29, 2017, 11:17:57 AM
Looks great, I'm in for 2-4 kits.

What about the center tapped pots, though? I don't think those can be bought at mouser....
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: elskardio on May 29, 2017, 01:35:04 PM
What about the center tapped pots, though? I don't think those can be bought at mouser....

Yes they can  ;)

http://www.mouser.com/ProductDetail/Bourns/PTT111-3217A-B503/?qs=sGAEpiMZZMtC25l1F4XBU1gRILB9VStL6OifK3MMtjE=
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: Tungstengruvsten on May 30, 2017, 01:39:16 PM
2 full kits here please!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: elskardio on May 30, 2017, 01:58:08 PM
2 full kits here please!

Hi Tungstengruvsten,
I will make partial kits only. Are you still interested in 2?
thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: AudioHammer on May 30, 2017, 04:10:31 PM
I will take 2 partial kits.

Looks great !!

AudioHammer
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: Tungstengruvsten on May 31, 2017, 02:23:17 PM
Hi Tungstengruvsten,
I will make partial kits only. Are you still interested in 2?
thanks
I'm in Canada so i'm fine with partial or full kits -
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: mhbunch on May 31, 2017, 03:54:36 PM
I'll take 2! ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit Feeler**
Post by: Mulmany on June 01, 2017, 12:18:12 AM
I would be interested in 2 if it's still open.

Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 01, 2017, 10:03:22 AM
First post updated  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: Vac11 on June 01, 2017, 11:26:04 AM
One question: how did you calibrate this EQ?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 01, 2017, 11:35:11 AM
One question: how did you calibrate this EQ?

By calibration, do you mean the frequency selection?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: Vac11 on June 01, 2017, 02:06:01 PM
There are few trimmer resistors on the PCB... What are they used for?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 01, 2017, 02:32:36 PM
There are few trimmer resistors on the PCB... What are they used for?

There's a Bias adjustment for the NE5534 on each band. Near the Input/Summing section, there's another trimmer to cancel the noise on the Bypass switch and another one to adjust the output level of the EQ.

The calibration is pretty easy. There's Test points on the pcb. All you need is a Digital Multimeter.
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: aCr on June 02, 2017, 06:44:12 PM
I'm in for 2 partial kits
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: buckethead on June 08, 2017, 06:06:12 AM
Payment sent :)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 08, 2017, 07:47:02 AM
Payment sent :)
Payment received
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: Mulmany on June 09, 2017, 01:24:13 AM
Payment sent.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 09, 2017, 07:30:41 AM
Payment sent.
Received! Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: Winetree on June 10, 2017, 06:20:47 PM
Payment sent for 4 Partial Kits.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 10, 2017, 09:42:13 PM
Payment sent for 4 Partial Kits.
Payment received.
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 12, 2017, 09:08:13 AM
Hi guys,
Just a little reminder that you have until June 16 to make the payment for your kits.
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: loafman on June 15, 2017, 10:43:42 AM
I'll take  2 kits.  Sending payment now.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 15, 2017, 10:49:13 AM
I'll take  2 kits.  Sending payment now.

Payment received.
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: mdmitch2 on June 16, 2017, 02:22:37 AM
Payment sent for 2 partial kits.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Partial Kit** UPDATE
Post by: elskardio on June 16, 2017, 08:36:16 AM
Payment sent for 2 partial kits.

Received. Thanks
--------------------------------------------------------------------------

It's the final day if  you want to order a kit. I'll start ordering parts this weekend  ;)
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Orders Closed**
Post by: elskardio on June 18, 2017, 10:38:57 PM
Thanks to everyone who placed an order. Your kits should ship in 3-4 weeks. I will post a link to the Mouser cart and the build guide when it's ready.
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Orders Closed**
Post by: Tomess on June 20, 2017, 05:32:15 AM
Hi there!

Any chance to get some back in stock?  ;D

Cheers, Tomess
Title: Re: CA-250 EQ // 3 band Sontec in 500 format **Orders Closed**
Post by: elskardio on June 20, 2017, 03:06:07 PM
Any chance to get some back in stock?  ;D

Hi Tomess, check your PM.
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on July 08, 2017, 04:36:01 PM
I received the front panels and the knobs. Still waiting for the PCBs to arrive... It shouldn't be too long before your kits ship  ;)

Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on July 18, 2017, 02:15:27 PM
I finally received the PCBs. I will assemble the kits this weekend to ship on Monday or Tuesday. I'll keep you posted  ;)
Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on July 18, 2017, 04:56:50 PM
Great. I know that's gonna keep you busy. 
Any progress on that Mouser Cart.
Thanks for doing this.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on July 19, 2017, 03:42:11 PM
Parts ordered.
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on July 19, 2017, 04:56:52 PM
Centre detents on the gain pots - nice attention to detail. Thanks for all your work on this project!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: rob_gould on July 20, 2017, 09:27:13 AM
I somehow missed this!

Are there any partial kits left? Did you order extras?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on July 20, 2017, 10:08:08 AM
I somehow missed this!

Are there any partial kits left? Did you order extras?

Sorry no extra kits at the moment.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: k.steeze on July 23, 2017, 06:33:51 PM
I would also be interested in these if you order more!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Trench Recordings on July 23, 2017, 08:28:59 PM
Very nice. I'll be in for two if you order more
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on July 27, 2017, 08:25:49 PM
Great job providing the Mouser and Digikey Carts along with the Build Guide.
My parts have arrived and looking forward to the kits and the build.
Thanks again.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on July 27, 2017, 11:39:48 PM
Thank you for the comment.

I look forward to receiving your feedback  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Mulmany on July 29, 2017, 12:45:28 PM
Great. Build docs are nicely done! More then what I was expecting.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on July 31, 2017, 04:36:52 PM
I received the kits today. I've built over a 100 kits and have already commented but I will again.
Build guide, Part Carts, communication, excellent.
Great quality of parts, P.S.B.s, Faceplates, Knobs, Hardware, Even down to the packing.
Everything arrived in in good condition.
You've done it all like a pro.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: jrasia on August 01, 2017, 12:49:21 PM
EQually impressed! 
Top notch kits.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 01, 2017, 10:41:41 PM
Thank you guys for the comments!
Let me know how your build goes.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Winetree on August 02, 2017, 02:39:37 AM
Got the 4  boards done and cleaned through step 12.
 Got a ways to go with switches, assembly and calibration.
Probably next week.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: loafman on August 02, 2017, 03:09:37 PM
Received my kits today. Everything looks great. Thanks!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: jrasia on August 02, 2017, 10:52:59 PM
Fits like a glove. Probabaly one of the best builds I've had the pleasure of doing.

Really need a jig to calibrate these though.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Mulmany on August 02, 2017, 11:12:18 PM
Received mine yesterday, waiting on parts order. Look great.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: mdmitch2 on August 04, 2017, 10:32:22 PM
Great build! Mine are finished, but not calibrated. A couple observations.... I had to file down the notches in the PCB where the gain pots go (the ones where you have to bend the pins). Otherwise they were a little too wide. It would probably have been less messy to do that first.... no big deal though.

Also, I would recommend loosely fitting the bypass switch pcb until the faceplate is on, and you're sure the switch will cleanly engage/disengage .  I found it best to only solder one of the pins on the 6 pin header -- that way it's easier to adjust the position of the switch if needed.  On one of mine, it took a little finagling, but the other was a piece of cake.

A very enjoyable build though, and the mouser BOM (plus digikey) was perfect.

 
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 04, 2017, 11:03:02 PM
I had to file down the notches in the PCB where the gain pots go (the ones where you have to bend the pins).
You shouldn't have to file the pcb. There's clearance for the blue plastic case of the potentiometer and that's all you need.
Thanks for the comments
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 04, 2017, 11:04:58 PM
Fits like a glove. Probabaly one of the best builds I've had the pleasure of doing.

Really need a jig to calibrate these though.
Nice build! Dale resistors  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 05, 2017, 10:13:17 AM
Really need a jig to calibrate these though.
Easiest option is a 500 Connector Extender:

http://soundskulptor.com/uk/proddetail.php?prod=XT500KIT

https://www.jlmaudio.com/shop/500-51x-extender-cable-kit.html

http://capi-gear.com/catalog/product_info.php?cPath=87_88&products_id=406

https://groupdiy.com/index.php?topic=52462.0 (Module Extender Kit)

Another option is to build a permanent test jig using the Rackit PCB from Igor :

http://www.ramshacklerecording.com/products/rackit/

Final option, if you have tiny hook test leads and a Bench Power Supply, you can connect directly to the 12 pin header. The pins are labeled on the PCB.
Be careful not to short the pins. Connect the leads first, then apply power.
(https://img.banggood.com/thumb/water/upload/2014/12/SKU167452/9.jpg)

Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 11, 2017, 09:26:53 AM
Hi Guys,
Anyone overseas (Europe) received their kits?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on August 11, 2017, 09:54:26 AM
Yep! Received safe and sound in London, beautifully packed and presented. Top work!

Looking forward to getting going with it.

Hi Guys,
Anyone overseas (Europe) received their kits?

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 11, 2017, 10:35:59 AM
Yep! Received safe and sound in London, beautifully packed and presented. Top work!

Looking forward to getting going with it.

Excellent!
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Vac11 on August 11, 2017, 11:13:37 AM
Yes, boards are in my home. Very well packed! Thank you very much!

M.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 11, 2017, 03:11:32 PM
Yes, boards are in my home. Very well packed! Thank you very much!

M.
Glad everything arrived in good condition   ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Lagrange on August 12, 2017, 04:14:21 AM
Hi!

One more happy European here!
I just finished my pair yesterday (have to wait for a test jig to calibrate, though). I have to say the build was extremely pleasant! The build guide is really top quality, I'd even say it's on a par with Chunger's legendary photodiaries! Detailed, but not going overboard and showing every single resistor. Extra plus from me for the friendly reminder in step 18 -- It usually takes me at least one molten Wima cap to remember to be careful with the soldering iron in small spaces!  ;D

I also really enjoyed the attention to detail in the design, especially the use of locking nuts, knobs with detents, ease of assembly and so on. :)
The mouser and digikey carts also worked perfectly and for a pair of EQs it was possible to split the order evenly between the two stores to avoid both of the shipping costs (to Europe it's around $20 for orders less than $50).

I agree with mdmitch2 that it might be a good idea not to solder the bypass switch pcb completely before fitting the faceplate for the final time (of course I only thought of this afterwards). The fitting worked out well for me in the end, but having a chance to move the bypass pcb in the final stages would probably make it easier to get the switch to move more freely, as the hole of the switch is a pretty snug fit.

And there's definitely no need to file or modify the pcb.

Thanks again for the extremely nice build! I can't wait to testdrive these!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: SKJGProject on August 12, 2017, 09:51:53 AM
in for 2 if somebody wants to sell his kit or if there is another run!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 13, 2017, 09:48:06 AM
I agree with mdmitch2 that it might be a good idea not to solder the bypass switch pcb completely before fitting the faceplate for the final time.

Thanks for the great review!

As mdmitch2 and Lagrange pointed out, it's a good idea to install the front panel before you solder the 6-pin header of the bypass switch.  Do steps 31-32 prior to step 30 in the build guide.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Tomess on August 13, 2017, 10:29:05 AM
Still waiting for my kit... :-[ I hope it will be here next week.  ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 13, 2017, 10:41:29 AM
Still waiting for my kit... :-[ I hope it will be here next week.  ;D
Shouldn't be to long... It takes around 10 business days (but not guaranteed)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Tomess on August 16, 2017, 02:11:15 AM
Haha.

I just got mail yesteday, that my parcel was deliverd to the customs duty office in my hometown, because the Mailservice don't know what it is and how to tax it.

German bureaucracy at it's finest ;) I've got to go there and pay a taxfee. :D Yay...
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 16, 2017, 11:16:45 AM
...because the Mailservice don't know what it is and how to tax it.

The description on the customs form is: "Printed Circuit Boards"... pretty obvious to me  ;)

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: [silent:arts] on August 16, 2017, 12:03:56 PM
The description on the customs form is: "Printed Circuit Boards"... pretty obvious to me  ;)
Obvious to you.
To customs it is TARIC-Code 85340011  ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 16, 2017, 01:53:08 PM
To customs it is TARIC-Code 85340011  ;D

I guess they have a pretty big glossary...
Now I understand why they charge administration fees  ;D

It reminds me of one time I received aluminum front panels and the Canadian customs charged me an extra because of a pyrotechnic classification  :o
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Tomess on August 17, 2017, 02:10:12 AM
[...] To customs it is TARIC-Code 85340011  ;D

Thanks Volker, i'll be heading there tomorrow, will see what they have to say  ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 17, 2017, 10:02:06 AM
Hi kit builders, anyone calibrated their EQ and ran audio through it?

Awaiting your thoughts and comments  8)

Cheers
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Mulmany on August 17, 2017, 04:43:47 PM
Hope to get to calibration today!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: jrasia on August 17, 2017, 05:13:09 PM
Calibrated smoothly.  Hopefully I can run some audio this weekend

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Mulmany on August 17, 2017, 11:21:28 PM
Calibration went smoothly, no issues. The pot throw and markings lined up perfectly, only had to adjust one knob.

Ran some 2 buss through them, post compression giving a little lift in the highs and cutting mids. Sounded polished. Need to run some individual tracks through them but first impression is good.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: SKJGProject on August 18, 2017, 03:30:51 AM
Too bad i missed this one...will there be a commercial unit?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 18, 2017, 08:23:20 AM
Calibration went smoothly, no issues. The pot throw and markings lined up perfectly, only had to adjust one knob.

Ran some 2 buss through them, post compression giving a little lift in the highs and cutting mids. Sounded polished. Need to run some individual tracks through them but first impression is good.

Great! Keep us posted ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 18, 2017, 09:23:44 AM
Too bad i missed this one...will there be a commercial unit?

Yes, my goal is to sell assembled unit under the brand "Chambord Audio" by the end of 2017. (the website is under construction)

Let's see how everything goes with the first batch of kits and If there's enough interest, I could eventually make another one ;)

I have a lot of work at the moment... full time sound designer by day, electronic enthusiast by night  ;D

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 24, 2017, 09:22:34 AM
Hi Guys,

any progress in the past week?

Keep me posted  ;)

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 28, 2017, 09:18:37 AM
(https://dl.dropboxusercontent.com/s/sgp9xdy7xcvlxrn/CA250_ANGLE_Small.jpg?dl=0)

 8)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Lagrange on August 29, 2017, 02:11:49 AM
any progress in the past week?

Just got my test jig assembled yesterday, and going to do calibration today. :)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Lagrange on August 30, 2017, 02:27:01 AM
The calibration went smoothly, no problems there!
I didn't have much time to use the EQs much yet, but the first impressions are definitely good. Though I have to mention I don't yet have much of a point of reference, since these guys are the first outboard EQs I've put in my setup. ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on August 30, 2017, 09:14:46 AM
I don't yet have much of a point of reference, since these guys are the first outboard EQs I've put in my setup.

Your ears are the only point of reference you need  ;)

Let me know when you ran more test.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on September 13, 2017, 06:13:10 PM
Hi guys,

Everyone finished their EQs?

Awaiting your thoughts and comments  ;)

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: mdmitch2 on September 13, 2017, 09:58:24 PM
I've got a stack of gear waiting to be calibrated... hopefully I'll get to it next week!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: AudioHammer on September 14, 2017, 09:54:25 AM
The build on the EQs has gone very smoothly.  I really appreciate the excellent build instructions document and BOM.  Also, a nice touch is theMouser part cart used to purchase the components.  The parts arrive with the packaging labeled from the vendor so that you know where they are placed on the PCB with the reference such as R1, C1, IC1, etc. 

By following the build guide and BOM you would have to work hard to screw up this assembly.  :-)

I have started the calibration procedure which is going well so far and will report back after performing some audio tests.

Excellent Kit !!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on September 15, 2017, 11:54:02 AM
Finished my pair recently - a very enjoyable build, thanks in no small part to the well-put-together kit and great manual. Calibration was a doddle, and went smoothly.

I've only had a short while to test them on some stereo material I use to test all new gear, but first impressions are very positive. The EQs are very smooth, and really seem to get inside and work with the audio somehow (especially in an MS matrix). Very natural sound. Ultra-quiet, too - a really pro piece of gear! I've never used a Sontec so no idea how these compare, but I'm very happy with these and I'm really looking forward to getting to know 'em. They certainly compare very well with the Xfilter in the pic below.

And I LOVE the switch de-clicker & unity trim - absolutely no change whatsoever when engaging or disengaging (checked with null test!). Brilliant.

Hats off, Elskardio!

[Edit: I switched the black knobs out for some cream ones I had lying around, more visible in my dingy space!]
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on September 18, 2017, 09:07:59 AM
Finished my pair recently - a very enjoyable build, thanks in no small part to the well-put-together kit and great manual. Calibration was a doddle, and went smoothly.

I've only had a short while to test them on some stereo material I use to test all new gear, but first impressions are very positive. The EQs are very smooth, and really seem to get inside and work with the audio somehow (especially in an MS matrix). Very natural sound. Ultra-quiet, too - a really pro piece of gear! I've never used a Sontec so no idea how these compare, but I'm very happy with these and I'm really looking forward to getting to know 'em. They certainly compare very well with the Xfilter in the pic below.

And I LOVE the switch de-clicker & unity trim - absolutely no change whatsoever when engaging or disengaging (checked with null test!). Brilliant.

Hats off, Elskardio!

[Edit: I switched the black knobs out for some cream ones I had lying around, more visible in my dingy space!]

Hi TwentyTrees,

thank you for the nice comments. Looking great with the white knobs  ;)

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on September 19, 2017, 11:21:38 AM
 Any chance you'll be doing a second run of the kits?

Id love to get my hands on a couple. Bare bone kits are cool with me, if thats easier on you,. just the Board and front panel.

/
Emil
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on September 20, 2017, 09:56:07 AM
Any chance you'll be doing a second run of the kits?

Id love to get my hands on a couple. Bare bone kits are cool with me, if thats easier on you,. just the Board and front panel.

/
Emil

I might make another batch of kits by the end of 2017...

Stay tuned  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on September 24, 2017, 01:59:26 PM
Cool! looking forward to it!

I might make another batch of kits by the end of 2017...

Stay tuned  ;)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on September 29, 2017, 10:36:47 AM
Hi Guys,

If you didn't order your parts yet, Mouser has everything in stock at the moment  ;)

Have a great weekend!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Catrunes on November 14, 2017, 10:30:19 PM
Count me in for 2 if you do another run, always need more eqs
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Bonsaimaster on November 15, 2017, 12:07:44 AM
In for 2 with another run.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on November 20, 2017, 03:23:32 PM
Im in for at least 4 kits.
/
Emil
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Mulmany on December 02, 2017, 03:50:23 PM
Great!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Catrunes on December 02, 2017, 08:11:38 PM
AWESOME! will order next week! ;D ;D ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: TillM on December 03, 2017, 08:29:20 AM
Hi Gabriel,
what’s the last date of making the payment ?
I would buy one.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 03, 2017, 12:33:26 PM
Hi TillM,
you have until January 1 to make your payment.
Cheers
Gabriel

Hi Gabriel,
what’s the last date of making the payment ?
I would buy one.

Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Rowan on December 03, 2017, 07:44:47 PM
Hi Gabriel !

Is it possible and not too difficult for you to ship in Belgium?

I might be interested !

Thanks,

Rowan
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 03, 2017, 09:54:23 PM
Hi Rowan,

Yes I can ship to Belgium.

Thanks

Hi Gabriel !

Is it possible and not too difficult for you to ship in Belgium?

I might be interested !

Thanks,

Rowan

Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Bonsaimaster on December 04, 2017, 11:33:18 AM
Can you send me an invoice for one unit?

Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: dane999 on December 07, 2017, 04:39:23 AM
Hi,
Just ordered 2 kits,
Thanks a lot !
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 07, 2017, 01:25:45 PM
Payment received.
Thanks

Hi,
Just ordered 2 kits,
Thanks a lot !
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 17, 2017, 11:18:18 AM
Hi guys,
2 weeks left to order your kits.
Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Mulmany on December 17, 2017, 09:39:26 PM
Money sent for 2 more kits. Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 18, 2017, 09:04:03 AM
Payment received.
Thanks

Money sent for 2 more kits. Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Catrunes on December 25, 2017, 04:47:04 AM
Payment sent for 2 kits ;D ;D ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 25, 2017, 10:12:39 AM
Hi Catrunes,

please check your Personal Messages.

thanks
Payment sent for 2 kits ;D ;D ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 25, 2017, 10:13:54 AM
Merry Christmas everyone !

One week left to order your kits ;)

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: mrdarwin on December 29, 2017, 03:22:14 AM
Hi there!
Payment for 2 kits +international shipping to France done
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: pachi2007 on December 30, 2017, 02:23:45 AM
2 kits
Thx a lot Gabriel!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on December 30, 2017, 10:47:04 AM
payment received. Thanks

3 days left!

I'm ordering everything to assemble the kits January 2.

Cheers

2 kits
Thx a lot Gabriel!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: rob_gould on December 31, 2017, 02:18:00 PM
hi Gabriel,

I have paypalled the money for 2 x partial kits + international shipping.

Thanks,

Rob
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: SKJGProject on January 01, 2018, 12:21:26 PM
paypalled 4 kits with shipping to germany
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: Tomess on January 01, 2018, 12:48:13 PM
Hey!

I just wanted to feed back, that i've finally finished building and calibrating my two units. Everything works flawles and calibrating was easy. I've tested the two units on drumloops, bass, guitarr and string quartet and i really liked what i've heard. Thanks for this great product and hopefully, there will be more kits like this in the future from you!  ;D

Cheeres and happy new year,

Tomess
Title: Re: CA-250 EQ // 3 band Sontec in 500 format ** ORDERS OPEN **
Post by: elskardio on January 01, 2018, 02:54:07 PM
Hi Tomess,

thank you for the nice comment.

I'm glad you like the EQs  ;)

Happy new year!
Gabriel


Hey!

I just wanted to feed back, that i've finally finished building and calibrating my two units. Everything works flawles and calibrating was easy. I've tested the two units on drumloops, bass, guitarr and string quartet and i really liked what i've heard. Thanks for this great product and hopefully, there will be more kits like this in the future from you!  ;D

Cheeres and happy new year,

Tomess
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on January 03, 2018, 11:36:13 AM
--------------------------------------------------------------------------------------------

UPDATE January 3

Thanks to everyone who made a purchase. I just placed the order for the front panels and PCBs.

Your kits should ship in 3 weeks. I'll keep you posted.

Happy new year  ;)
Gabriel

--------------------------------------------------------------------------------------------
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on January 20, 2018, 10:52:54 AM
Hi CA-250 users,

I made a recall sheet to facilitate your work  ;)

https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0 (https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0)

All kits should ship next week.

Have a good weekend
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on January 20, 2018, 01:16:45 PM
Nice! That’ll be helpful, thanks.

Hi CA-250 users,

I made a recall sheet to facilitate your work  ;)

https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0 (https://www.dropbox.com/s/jm2kxsqwjpjuro9/CA-250_RECALL_SHEET.pdf?dl=0)

All kits should ship next week.

Have a good weekend
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on January 26, 2018, 10:06:52 AM
Hi Guys,

All the kits were shipped yesterday. It should take around 2 weeks to reach most destinations.

I updated the build guide.

Also Mouser have everything in stock at the moment. It's a good time to order your parts.

Please let me know when you received your package.

Have a good weekend
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: mrdarwin on January 27, 2018, 02:37:32 PM
 :) :) :)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Mulmany on January 29, 2018, 10:44:38 PM
Mine showed up today. Thanks.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: mrdarwin on January 30, 2018, 09:13:58 AM
receveid today
 :)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: pachi2007 on February 01, 2018, 02:53:00 AM
Here too. Thx!!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on February 04, 2018, 11:49:17 AM
All arrived safe here too.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: dane999 on February 05, 2018, 05:26:49 AM
arrived here, thanks !
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Catrunes on February 06, 2018, 12:10:14 AM
my kits arrived a while ago, been hectic around here sorry!
very well packed and organized kits! very impressed, will be building both in the next 2 days  ;D ;D ;D ;D ;D ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Catrunes on February 07, 2018, 05:08:10 AM
thinking about swapping the tl071s for TLE2071ACP
thoughts?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on February 07, 2018, 10:29:31 AM
It won’t make an audible difference. Save your money  ;)

thinking about swapping the tl071s for TLE2071ACP
thoughts?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: rob_gould on February 10, 2018, 06:18:19 AM
My order has arrived and all looks good!

Thanks very much!
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Catrunes on February 14, 2018, 03:45:48 AM
Both of my units have been built and calibrated! They sound quite amazing to be honest, wishing I got at least more.
Any possibility of another kit run in the future?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Pesis on February 14, 2018, 05:18:38 PM
Just found out about this, and would be interested in 2 kits (partial or full)  if there will be a rerun. Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on February 14, 2018, 05:28:47 PM
Sorry guys this was the final batch of kits.

I'm launching the EQ commercially next month.

Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on March 21, 2018, 12:09:23 PM
Hi all,
I finished my four kits yesterday. Finished them all in about 8 hours which speaks for the quality of the kit and manual.
Sounds fantastic, as were to be expected, and are a great complement to the other EQ:s in my desk.
/
Emil
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Studio Mollan on March 21, 2018, 12:09:57 PM
Here's another pic.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on March 22, 2018, 11:35:59 AM
Wow! Beautiful API desk. Congrats  ;)

Hi all,
I finished my four kits yesterday. Finished them all in about 8 hours which speaks for the quality of the kit and manual.
Sounds fantastic, as were to be expected, and are a great complement to the other EQ:s in my desk.
/
Emil
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on March 23, 2018, 02:21:35 PM
Ready for the weekend  ;)

(https://s26.postimg.cc/8u26sg7x5/Full_Rack_CA250.jpg)
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TimS on April 04, 2018, 04:37:42 PM
Very cool! What are you planning on charging for the production models?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on April 05, 2018, 12:32:09 PM
Very cool! What are you planning on charging for the production models?

$499 CAD. (around $390 USD at the moment)

The store should be online by the end of the month.
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: john12ax7 on April 05, 2018, 03:25:14 PM
Has anyone experimented with different opamps for the main opa2134? Sounds good as is,  just curious of the possibilities, would any decent dual opamp  be compatible?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on April 06, 2018, 01:45:28 PM
Has anyone experimented with different opamps for the main opa2134? Sounds good as is,  just curious of the possibilities, would any decent dual opamp  be compatible?

Hi John,

yes, any high performance dual opamp that runs on +/- 16V will work.

I've tested a bunch and I picked the OPA2134. To me it was the most balanced sound. Tight bass & crisp highs.

Cheers
Gabriel

Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: Tariq on April 16, 2018, 08:26:39 PM
Can these EQs be made with a lower gain range? Say about 6db?
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on May 15, 2018, 12:21:15 PM
Hi guys,

I just finished the Demonstration Video for the CA-250 EQ.

Here's the link if you're curious  ;)

https://youtu.be/MYJekE-bOVE

The website should be online by the end of the week.

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: rob_gould on June 03, 2018, 04:44:56 PM
Hi,

Just a note to say my EQs are built, calibrated and sounding fantastic!

Thanks very much!

Cheers

Rob
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on June 07, 2018, 03:20:05 PM
Hi,

Just a note to say my EQs are built, calibrated and sounding fantastic!

Thanks very much!

Cheers

Rob

Hi Rob,

Congrats! I'm glad you like the EQs.

Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: elskardio on June 07, 2018, 03:27:06 PM
Hi Guys,

The CA-250 EQ is now available to order directly from Chambord Audio's website.

For more information, please visit: https://chambordaudio.com

Cheers
Gabriel
Title: Re: CA-250 EQ // 3 band Sontec in 500 format
Post by: TwentyTrees on June 07, 2018, 05:07:45 PM
Website’s looking great! Hope these sell well, they certainly deserve to.  ;D
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: rob61 on June 16, 2018, 04:01:46 PM
These still available as kits?
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: elskardio on June 16, 2018, 07:53:51 PM
These still available as kits?

No. Only assembled unit.

Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: Blackdawg on June 17, 2018, 02:03:34 AM
Sad i missed the kit! But the price is great anyways.

Are the Q and Freq knobs detented for recall?
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: elskardio on June 17, 2018, 08:48:55 AM
Are the Q and Freq knobs detented for recall?

No. Only the Gain pots are center detented for the 0 position.
Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: Blackdawg on June 17, 2018, 12:43:47 PM
No. Only the Gain pots are center detented for the 0 position.
Thanks

Thanks for the response!

Would it be possible to modify it to detented pots? DIYRE uses a nice pot that look just like the ones you use that are 21 steps(the green ones used for freq selection on your EQ). I realize I'd be doing this myself, just curious about the blue ones as Im not sure about those.
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: elskardio on June 17, 2018, 07:25:46 PM
Would it be possible to modify it to detented pots? DIYRE uses a nice pot that look just like the ones you use that are 21 steps(the green ones used for freq selection on your EQ). I realize I'd be doing this myself, just curious about the blue ones as Im not sure about those.

It's not really feasible.

If you want stepped controls in a 500 series format, have a look at the CAPI BT50:
(https://groupdiy.com/index.php?topic=64429.0)

or the LC graphics EQ.
(http://capi-gear.com/catalog/index.php?cPath=22_117_119_212)
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: Mulmany on August 18, 2018, 04:59:42 PM
Could you pm the mouser bom? Didn’t pull it before it got removed.

Thanks
Title: Re: CA-250 EQ // 3 band Sontec in 500 series format
Post by: SKJGProject on August 20, 2018, 02:25:18 AM
Could you pm the mouser bom? Didn’t pull it before it got removed.

Thanks

Oops...me too, +1!