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Project Specific Discussions => Filters/Equalizers => Topic started by: dirty1_1garry on May 05, 2019, 03:52:22 AM

Title: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 05, 2019, 03:52:22 AM
Hello groupdiy'ers!
I'm happy to announce:

Garash G.TEN - ten band graphic equalizer in 500 series format.
Great sounding and easy to set eq with all important music frequency points.
It’s great for shaping drums, guitars or any other sources where you need great sound and fast setup.

(https://groupdiy.com/gallery/0/47634-050519035448.jpeg)

Schematic was LTspice emulated and carefully tuned. Eq principle is based on ic gyrator filters. Eq is proportional-Q (wider Q on low boost/cut and narrower Q on high boost/cut). Such eq principle became especially popular from the mid of 70s when the famous console module was invented by Al Davis. You know what module it is :P

G.TEN is input balanced and output balanced with true relay bypass and led indicator (red - bypass, green - eq active).
The design includes the option to select the output stage:
- opamp driver + that1646 differential output line driver
- discrete opamp (any 2520 style DOA) output driver + 2503 output transformer
So you get “more clean” output or “a little bit more coloured” output.

G.TEN will be available as diy kit with a full set of all components necessary for its assembly*.
*additional component list:
- that1246 input buffer
- dual opamp (OPA2604 / LME49720 recommended)
- output parts, depends on your output option selection(OPA604 + that1646 or DOA + 2503 trx)


Now we are preparing for second batch. First 20pcs was sold during a month
.

The pictures above show a working prototype with an 3mm aluminum panel and letters by laser engraving (which makes the letters are not very readable).In the serial version, the panel will also be aluminum but with letters made by the principle of metallographic (which makes the letters much more readable).

Feel free to ask and comment.  If you have an interest - PM.
Also kit is available through our distributor:
https://www.facebook.com/diystudiotoys/

BOM and ASSEMBLE MANUAL link:
https://drive.google.com/drive/folders/1XTRJicFMu6wuOEsiu5kzSY39iGuP0tBL?usp=sharing

Cheers, Igor

(https://groupdiy.com/gallery/0/47634-050519035727.jpeg)
(https://groupdiy.com/gallery/0/47634-050519035740.jpeg)
(https://groupdiy.com/gallery/0/thumb_47634-050519035046.png) (https://groupdiy.com/index.php?action=gallery;sa=view;id=538)
(https://groupdiy.com/gallery/0/thumb_47634-050519034918.jpeg) (https://groupdiy.com/index.php?action=gallery;sa=view;id=535)
(https://groupdiy.com/gallery/0/thumb_47634-050519035026.jpeg) (https://groupdiy.com/index.php?action=gallery;sa=view;id=537)
Title: Re: G.TEN 500 series graphic eq
Post by: TillM on May 06, 2019, 03:24:14 AM
This looks good.
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 06, 2019, 10:11:25 AM
This looks good.

Thanks! Will post here some further steps
Title: Re: G.TEN 500 series graphic eq
Post by: echoplex on May 08, 2019, 06:19:49 PM
I just wish its faceplate was black.. but otherwise it is perfect!
Will very likely order some off these throughout this year  8)
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 10, 2019, 01:06:19 AM
I just wish its faceplate was black.. but otherwise it is perfect!
Will very likely order some off these throughout this year  8)

Feel free to contact)
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 11, 2019, 02:18:05 PM
Video demo:
https://www.youtube.com/embed/KcgUpXrDFh8
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 21, 2019, 01:21:57 PM
comparison with 560 eq:
https://www.youtube.com/watch?v=wlthNa8smTc
Title: Re: G.TEN 500 series graphic eq
Post by: Winetree on May 21, 2019, 06:23:51 PM
I'd be interested in 2 kits. 
Can't figure out how to pre-order. Not on Facebook.
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 22, 2019, 02:09:00 AM
I'd be interested in 2 kits. 
Can't figure out how to pre-order. Not on Facebook.
PM send
Title: Re: G.TEN 500 series graphic eq
Post by: OneRoomStudios on May 23, 2019, 08:50:08 AM
Hi Igor,

What is the price on these? Thanks!
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on May 23, 2019, 09:48:20 AM
Hi Igor,

What is the price on these? Thanks!

Hi,
I did not post price here as that's not a white/blck market. I think it's correct.
PM send.
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on July 16, 2019, 07:25:01 AM
First batch sold. Assemble manual and BOM added. Check first post.
Title: Re: G.TEN 500 series graphic eq
Post by: echoplex on July 31, 2019, 11:53:27 AM
this is awesome ! :)
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on July 31, 2019, 06:51:17 PM
this is awesome ! :)

thanks, you are welcome!)
Title: Re: G.TEN 500 series graphic eq
Post by: Winetree on July 31, 2019, 07:01:59 PM
Will there be a second batch?
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on July 31, 2019, 07:04:12 PM
Will there be a second batch?

yes, prepare for second batch. I hope in september it will be availble. You can send me your e-mail and I will send a massage with notification
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on August 13, 2019, 01:19:33 PM
last G.ten from first batch
(https://groupdiy.com/gallery/0/thumb_47634-130819131304.png) (https://groupdiy.com/index.php?action=gallery;sa=view;id=543)
(https://groupdiy.com/gallery/0/thumb_47634-130819131732.png) (https://groupdiy.com/index.php?action=gallery;sa=view;id=544)
On sale, check Black Market.
Title: Re: G.TEN 500 series graphic eq
Post by: Bobby Baird on August 20, 2019, 07:34:43 PM
G.TEN received! One question. I will be using the B output option with 2520 & 2503 output transformer. I noticed that there were 2 - .1uf ceramic capacitors above the dip8 that 1246 socket. I believe the build manual says to leave these off board. Just want to confirm that I should remove them, or if it is ok to leave in circuit? Below is picture with circled components in question.
Thanks again Igor!
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on August 21, 2019, 03:07:16 AM
G.TEN received! One question. I will be using the B output option with 2520 & 2503 output transformer. I noticed that there were 2 - .1uf ceramic capacitors above the dip8 that 1246 socket. I believe the build manual says to leave these off board. Just want to confirm that I should remove them, or if it is ok to leave in circuit? Below is picture with circled components in question.
Thanks again Igor!

Hi! Congrats!
In a such configuration you should install 0.1u near 1246 and do not install them near 1646. Like it showed on page 27 (I've added additional image, see attached).
One more comment - on page 43 there is a schematic for wiring 2503 as 1:2. There is a mistake - that's necessary to ground only one unused wire (ORG or YEL), NOT both. If you will connect both you will get a short circuit at one secondary (that's safe for transformer) and you will read -6db instead of +6dB trx gain.
Title: Re: G.TEN 500 series graphic eq
Post by: Bobby Baird on August 24, 2019, 07:01:00 PM
Sounds awesome! Ruler flat engaged. Looking forward to getting a couple more to sit on snare and bass drum tracks.
Title: Re: G.TEN 500 series graphic eq
Post by: Bobby Baird on August 24, 2019, 07:04:19 PM
Racked.
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on August 24, 2019, 07:50:42 PM
Racked.

Congrats!
Title: Re: G.TEN 500 series graphic eq
Post by: deadpoet on October 18, 2019, 10:17:51 AM
Any news when there will be a next batch ready to order? I'd love to build me a pair!


Herwig
Title: Re: G.TEN 500 series graphic eq
Post by: Ricardus on October 18, 2019, 12:38:16 PM
Any news when there will be a next batch ready to order? I'd love to build me a pair!


Herwig

 Yes. I want at least a pair.

 Maybe 4.
Title: Re: G.TEN 500 series graphic eq
Post by: Winetree on October 18, 2019, 08:16:18 PM
yes, prepare for second batch. I hope in september it will be availble. You can send me your e-mail and I will send a massage with notification
Still looking forward to these, seeing I just missed out on the first batch.
Let me know.
Title: Re: G.TEN 500 series graphic eq
Post by: Bobby Baird on January 27, 2020, 05:41:49 PM
Let's get this going. I preorderd 2 kits. Hopefully there is enough interest in this to get the ball rolling. I can attest to sound quality on these units.

https://diystudiotoys.com/products/GTEN2020
Title: Re: G.TEN 500 series graphic eq
Post by: Winetree on January 27, 2020, 09:46:17 PM
Tried to order 2 thru Paypal. Denied due to international regulations.
Title: Re: G.TEN 500 series graphic eq
Post by: OneRoomStudios on January 29, 2020, 10:47:12 AM
I have two preordered. Anyone know when they're going to ship?
Title: Re: G.TEN 500 series graphic eq
Post by: zipman on January 31, 2020, 05:08:04 AM
2 pre-ordered here, looking forward to using these  8)
Title: Re: G.TEN 500 series graphic eq
Post by: dirty1_1garry on February 28, 2020, 03:38:53 AM
We are close to packing and shipping. Sorry guys for delays who preordered second bath kits. There was a couple production troubles that was luckily  solved.
Title: Re: G.TEN 500 series graphic eq
Post by: OneRoomStudios on February 28, 2020, 09:59:31 AM
We are close to packing and shipping. Sorry guys for delays who preordered second bath kits. There was a couple production troubles that was luckily  solved.

Great news, thanks! I'm excited to get mine.
Title: Re: G.TEN 500 series graphic eq
Post by: Bobby Baird on March 26, 2020, 02:08:07 PM
We are close to packing and shipping. Sorry guys for delays who preordered second bath kits. There was a couple production troubles that was luckily  solved.

Any update on status of pre-order?
Title: Re: G.TEN 500 series graphic eq
Post by: echoplex on March 28, 2020, 06:16:05 PM
from the very few demos I find online I found thee G.TEN 500 more appealing than the CAPI LC ..
anyone here compared them side by side?
also the CAPI has 2 transformers while the G.TEN seem to stick more to the original circuit



Title: Re: G.TEN 500 series graphic eq
Post by: SKJGProject on April 19, 2020, 09:39:55 AM
anyone tested version a versus b? what sound do you prefer?