Summing mixer

Kir_For_Pleasure · Dec 31, 2009

looking after a good 16ch summing solution/shematic with inserts but cant find any good information, what is the hint ?? if i go passive is it possible with switched jacks ? normally racked gear have makeup/output gain for signal loss. and for the summed Left Right signal i can use whatever i want preamp. Is this correct thinking ?

Kingston · Dec 31, 2009

http://www.groupdiy.com/index.php?topic=2779

start reading.

abbey road d enfer · Dec 31, 2009

Check this one also
http://www.groupdiy.com/index.php?topic=36378.msg451881#msg451881

Kir_For_Pleasure · Dec 31, 2009

Yes have reading them for a couple of years now ;D just wanted some input about my thoughts

Kir_For_Pleasure · Dec 31, 2009

abbey your link was intresting !

Rob Flinn · Jan 2, 2010

I recently made quite a nice active summing amp using Jeff Steigers ACA board. This is quite a cheap solution to make some thing that sounds really good
http://classicapi.com/catalog/product_info.php?cPath=22_46&products_id=81

I used 990 op amps for the ACA & the gar 2520 for the fader buffers. i managed to get a stereo Penney & Giles Fader from ebay for £5 to go between the 2 stages. The fader buffer amp has 3 pairs of outputs which I hook 1 pair up to monitors, the 2nd back into my 002 rack for recording my stereo mix, & the 3rd to an RTW plasma meter.
I wired the inputs so that I have 8 centrally panned, 4 on the left & 4 on the right. This enables me to have things like vocals central, but also have stereo inputs for stuff like drums. What I hate is having to mix some things in the box still

All inputs are wired via a B gauge (long frame) patchbay so that I can insert compressors & eq's etc.

It sounds great, but I reckon it still needs some tweeking to optimise it.

The trouble is the minute you get this far you start thinking about some auxilliaries, motor faders, panning etc
The bottom line is I like the functionality of a real desk. I wish there was enough room here to get my trident out of storage