SSL 9k slim

I finished my compact PCB: mic pre inspired by SSL 9k project with some mods. PCB allows to use discrete transistors, dual OpAmps (like very quiet LME49860 or bright AD823) and have PSU. Cello, piano, сlarinet, drums and vocal sounds beautiful.

Mucho nice...for 1st post.

WOW

Nice...but i don't see the MAT-02 there?

simonsez said:

Nice...but i don't see the MAT-02 there?

Click to expand...

those are discontinued. But because there was still such a high demand for them they made a new version called mat12 which is supposed to be  drop in  identical to the mat02

Great job!!!
pcb available?

pucho812 said:

simonsez said:

Nice...but i don't see the MAT-02 there?

Click to expand...

those are discontinued. But because there was still such a high demand for them they made a new version called mat12 which is supposed to be  drop in  identical to the mat02

Click to expand...

jesus, mat12 is $22 each??

EDIT: oh, and nice build

8) 8), hand soldered? Or hot air?

White soldermask and no silkscreen.... Looks so futuristic!

Thank you!!!
Yes, i use matched NPN's instead NPN array. In A-B listening test (mic->splitter->two channels->ADC) i dont hear big or small difference with MAT02 and SSM2210 (both discontinued).
Add protective diodes and forget about it. More changes you can hear with LME49860 or AD823.
Hand soldered

A-B test with RED1 (snare)
http://www.multiupload.com/UGZLXKTCDU

Looks so futuristic!

Click to expand...

+1

Hand soldered

Click to expand...

Class and Clean haha

PS: Sounded a slight smoother for the Red on more attack, on a cheap headphone quick listen tough, but nice anyway, now let's see the rack  ;D

ilfungo said:

Great job!!!
pcb available?

Click to expand...

Yes, i can repeat order.

zayance said:

PS: Sounded a slight smoother for the Red on more attack, on a cheap headphone quick listen tough, but nice anyway, now let's see the rack  ;D

Click to expand...

My rack is very-very simple.
12-step gain control and 48V switch.

We can compare a sound FF800 preamps and SSL (piano and clarinet).
Chain1: DPA 4090 -> splitter -> FF800 pre -> FF800 ADC
Chain2: after splitter -> SSL pre -> FF800 ADC
http://www.multiupload.com/PQAHKGL4P1
Archive contains additional files.

atxt said:

ilfungo said:

Great job!!!
pcb available?

Click to expand...

Yes, i can repeat order.

zayance said:

PS: Sounded a slight smoother for the Red on more attack, on a cheap headphone quick listen tough, but nice anyway, now let's see the rack  ;D

Click to expand...

My rack is very-very simple.
12-step gain control and 48V switch.

We can compare a sound FF800 preamps and SSL (piano and clarinet).
Chain1: DPA 4090 -> splitter -> FF800 pre -> FF800 ADC
Chain2: after splitter -> SSL pre -> FF800 ADC
http://www.multiupload.com/PQAHKGL4P1
Archive contains additional files.

Click to expand...

I'm in for two or four depending on the price....
how much they cost?
THANKS!!!!

ilfungo said:

I'm in for two or four depending on the price....
how much they cost?
THANKS!!!!

Click to expand...

I ordered a small amount of boards in the local manufacturer. Therefore the price is rather high, about $22.

I never liked the sound of the ff800 preamps, and your files confirm that again hahaha, nice job all the way, too many projects on hold, but could have been nice o have some boards maybe  :.

zayance said:

I never liked the sound of the ff800 preamps, and your files confirm that again hahaha, nice job all the way, too many projects on hold, but could have been nice o have some boards maybe  :.

Click to expand...

I will make the new order with a stock for you) Or i will make full assemblage if near at hand there is no necessary a component. What difference - eight or twelve.

Already have a parts list (BOM)?
Thanks

ilfungo said:

Already have a parts list (BOM)?
Thanks

Click to expand...

All resistors and capacitors have same values as SSL9k project, size 1206 or 0805.
Film capacitors with 15mm lead spacing. In servo use OPA2134 or OPA2132 with better perfomance and +-18V support. Don't use TL072.
Additional electrolytic capacitors for each OpAmp...
Full list and layout will be soon accessible.

My wife is gonna kill me  ;D

on board for 8x

Glad to see a nice SMD layout,

Oh man these look amazing...

Is smd stuff hard to solder? I've never tried. Watching some tutorials on it right now...

How many of these fit in a 1u? what's it cost per channel roughly to complete?


Thanks!