News:

Happy New Year!


dustbro

Re: SSL 4K E mic input
« Reply #120 on: January 27, 2011, 09:31:28 PM »
I finally got my prototype together as well. For my initial design I have the mic and line input on the board. Once this is verified, I'm going to add the LMC.
 Hope to power it up next week.



Whoops

Re: SSL 4K E mic input
« Reply #121 on: January 28, 2011, 07:51:16 AM »
Looks Good so far,
ar you adding the LMC as an extra board? or including it in a new board design?

dustbro

Re: SSL 4K E mic input
« Reply #122 on: January 28, 2011, 12:53:28 PM »
It will be included in the same board... and probably with an onboard psu as well.

bpucekov

Re: SSL 4K E mic input
« Reply #123 on: January 28, 2011, 01:08:59 PM »
what is LMC

Whoops

Re: SSL 4K E mic input
« Reply #124 on: January 28, 2011, 02:36:41 PM »
what is LMC

SSL Listen Mic Compressor, it's the compressor that was used in the talkback amplifiers of the SSL consoles

bpucekov

Re: SSL 4K E mic input
« Reply #125 on: January 28, 2011, 02:37:41 PM »
thank you

signalflow

Re: SSL 4K E mic input
« Reply #126 on: March 31, 2011, 10:21:22 AM »
Here is a sound sample of my 4K pre.

It's using the Jensen 115 input trasformer.  The record chain is a Modded MK-319 into the pre, then into ADA8000/RME HDSP9652 recorded into Cubase5 @ 48K 24bit.  Reverb is an impulse of a TC6000.  Probably should'nt have put the verb on for a listening test but it sounded soooo sweet!

Also there is no EQ or Compression.

http://soundcloud.com/casey_pittman/4ktest

The shortest distance between two places is a nap.

bpucekov

Re: SSL 4K E mic input
« Reply #127 on: March 31, 2011, 11:35:46 AM »
sound nice

Re: SSL 4K E mic input
« Reply #128 on: January 11, 2017, 10:50:57 AM »
What about the SSL G mic pre  :P ?

Any news ?!

Whoops

Re: SSL 4K E mic input
« Reply #129 on: January 11, 2017, 01:04:37 PM »
I remember this thread from some years ago.

I don't really remember at the moment if any G mic pre was done, I think only the E series. But I might be wrong.
Search around the forum

Anyway the G mic pre is simple and is transformerless so it's cheaper to build than the E series.
if you have the skills you can easily design a pcb layout and home ecth a board. That's how this forum started.

« Last Edit: January 17, 2017, 09:52:19 PM by Whoops »


Whoops

Re: SSL 4K G+ mic input
« Reply #130 on: January 17, 2017, 10:58:08 PM »
Don't know if the only difference between the 149 and the 249 is the change from a Gain Pot to a Gain switch.
I will see if I can get some pics.

Better would be to see the schematics

Hi all,
this thread started with a "SSL 4K G+ mic input" title , although the schematic was actually E-Series and then it gave birth to a few E-series mic preamp builds and then Bruno2000 E-series 4K mic pre for the 500 series.

Actually the G-Series mic preamp that started all this was never made into a project. I have the schematic for the G-Series channel amp now.
Is anyone interested in having some fun a do a G-Series mic preamp project?

I would do it myself but I'm still lousy in designing pcb's in Eagle and also I don't have time at the present for this, I'm mixing 3 records at the moment.


dustbro

Re: SSL 4K E mic input
« Reply #131 on: January 18, 2017, 07:52:04 PM »
I could do a quick layout for the G series pre. Link to schematic?

Whoops

Re: SSL 4K E mic input
« Reply #132 on: January 18, 2017, 09:52:52 PM »
I could do a quick layout for the G series pre. Link to schematic?

Hi Dustdro, that would be great, thank you for that.

I just scanned the schematic and uploaded it to the Tech Docs section

https://groupdiy.com/index.php?action=dlattach;topic=45604.0;attach=48024

dustbro

Re: SSL 4K E mic input
« Reply #133 on: January 19, 2017, 05:03:26 AM »
Thanks for the upload!
The mic gain switch is removed from this schematic. I assume it's attached to MOL1 MOL2 and MOL3. Do you have that drawing as well?

Whoops

Re: SSL 4K E mic input
« Reply #134 on: January 19, 2017, 06:36:26 AM »
Thanks for the upload!
The mic gain switch is removed from this schematic. I assume it's attached to MOL1 MOL2 and MOL3. Do you have that drawing as well?

Unfortunately don't, but I'm trying to get more info on that

dustbro

Re: SSL 4K E mic input
« Reply #135 on: January 19, 2017, 08:03:01 AM »
Any objections to balancing the output via DRV134 line driver? Phase reverse via relay?

Whoops

Re: SSL 4K E mic input
« Reply #136 on: January 19, 2017, 08:05:01 AM »
I was able to get the Gain switch drawing.

Created a new thread for G series mic amp related stuff:

https://groupdiy.com/index.php?topic=64943.0