EZ1084EQ NEW BATCH COMING - SEE MY MARCH 27 COMMENT ON PAGE 38

[Slenderchap]

If you increase the value of the gain boost resistor in the output stage you should be able to get the values down by 1.6dB and then you should be pretty much "on the nose" with the gain settings.

The values will also drop if you have are driving a 600 Ohm load.

You can probably get the gain values within about 0.5dB across the whole 40dB range.... if you need more accuracy than that you would need to go to 0.1% resistors (or series parallel combinations) to get the resistor ladder accurate.

Colin
www.audiomaintenance.com

 

[earl]

Hello Jim I'm interested in some 1290's pcb's Dan at collective cases has the case. Are these available?

 

[3nity]

Bluzzi is the mind behind the ez1084 not ez1290.
for 1290 contact madrianse.
good luck

 

[dandeurloo]

Hello Jim I'm interested in some 1290's pcb's Dan at collective cases has the case. Are these available?

I'm almost already done with the EZ1084's!  So I will have both cases for his boards.  The eq's are 1U per channel.  The EZ1290's are done and ready to go.

 

[Bluzzi]

Seems like all the "Dans" do really nice work on cases!

Beautiful work Dan.

Cheers

Jim

Hello Jim I'm interested in some 1290's pcb's Dan at collective cases has the case. Are these available?

I'm almost already done with the EZ1084's!  So I will have both cases for his boards.  The eq's are 1U per channel.  The EZ1290's are done and ready to go.

 

[studio1670]

Just finished my two units.  Both fired up and worked the first time. 

Thanks for the outstanding project!  Can't wait to use them in a mix!

Thanks!
Mike

 

[tomcat]

Which Dan was doing the red frontpanel version with the Buzzi logo?

 

[Bluzzi]

Just finished my two units.  Both fired up and worked the first time. 

Thanks for the outstanding project!  Can't wait to use them in a mix!

Thanks!
Mike

That's what I want to hear! It was my main intention to make it foolproof (or genius proof!).

The best part is using them! Lush, smooth and creamy.

Cheers

Jim

 

[Bluzzi]

Which Dan was doing the red frontpanel version with the Buzzi logo?

Dan Devecka.

Jim

 

[tomcat]

Which Dan was doing the red frontpanel version with the Buzzi logo?

Dan Devecka.

Jim

Dan Devecka = User DDT ?

 

[3nity]

yes!

 

[studio1670]

For those interested, here is how I did the power supply to power 2 units.  I didn't want to give up any rack space.  So this box sits behing the rack.

 

[biasply]

I've just received my cases (Thanks DDT), and as this is my first DIY project, I'm not sure what spec of hookup wire is appropriate.  Any suggestions?  I have a line on some 24 gauge Cardas - which I'm told is pretty snooty - do I need that level of quality for such short runs?

Steve.

 

[Bluzzi]

I've just received my cases (Thanks DDT), and as this is my first DIY project, I'm not sure what spec of hookup wire is appropriate.  Any suggestions?  I have a line on some 24 gauge Cardas - which I'm told is pretty snooty - do I need that level of quality for such short runs?

Steve.

Steve, the runs of wire are so short any wire will do! Twist them if you want. Wire it up, plug it in, fire it up and enjoy the baby!

Cheers

Jim

 

[3nity]

I do buy some feets of multi conductors and use the wires for colour coding.
20-22 awg is fine!

 

[tomcat]

To put the torroid inside the case is no good idea? Too much noise?

 

[Bluzzi]

To put the torroid inside the case is no good idea? Too much noise?

Well first there should not be a lot of room left in there to put a toroid and a power supply. Even if you could the chances are that you would have some hum.

What I'm sure of is that having the power supply and AC XFR outside the EQ's 1RU case results in ridiculously low noise! Its just not worth it in my mind.

The only thing I would experiment in would be to only have the Power XFR outside and the Power Supply PCB inside the case. If anyone's tried this please let us know your results.

Cheers

Jim

 

[Bluzzi]

Hi all,

Just wanted to announce that I have 7 boards left. Please see the White Market section for special (if you order 5 or more or if you have ordered 2 or more in the past).

I'd like to keep 2 for me in case I don't re-order so hence the 5 I'd like to get shipped before month end.

Thanks again for all your support.

Cheers

Jim

 

[kquick]

Power supply question,  In the build manual it says to use pin 4 and pin 1 on the power xlr, set pin 4 to +24 volts  and pin 1 is OV (zero volts). Do I understand this correctly set one rail of the power supply to +24 for pin 4  and set the second rail of the power supply that is usually -24 volt to zero volts for pin one and do not use pins 2 and 3 for anything?  No ground?

Thanks
Kim 

 

[3nity]

well you dont need -24V.
but it would be good to se the - rail to -24V as well...if not it could over heat the regulator.
You can star ground to pin 2 or 3 as you like but only if needed!
Thanks