[sdiy] Behringer Cybermix CM8000

[Batz Goodfortune]

Y-ellow Peter, Ben, et all.
         Thanks for that. Seems to be the consensus that the send/ret jack 
doubles as some kind of quasi convenience. Though it would seem that having 
them on the same TRS socket isn't all that convenient.

If you take a look at the photos on that site I posted, you'll notice that 
the only ICs adjacent to the VCA chip are a couple of Op Amp packages. A 
TL074 and some kind of 8 pin device. (Might even be a dual sample/hold 
chip) Each channel seems to be accompanied by a pair of trim pots. I can't 
see anything that suggests any further switching components per channel. 
Which is what threw me about the extra jacks. I would have expected there 
to be some kind of switching on the Mo-Bo but there was none.

So all I can glean from these photos is that it's got MIDI and RS232. It 
also seems to have SMPTE I/O of some kind. And is powered by a HC11.

I need to make a decision whether to make a play for this thing within the 
next day or two. I know I could sum the outputs fairly easily. But I guess 
now it seems I have to find some kind of special software to run it.

At it's most basic, I just need to mix a bunch of incoming stereo sources 
from Analogue synths etc. Each synth has it's own autonomous mix/FX chain. 
The only thing I need to do is adjust each synth's level to normalize them. 
But if I could also use it like an automated noise gate, where I only have 
to have them in line as needed, then that would be a bonus. This is where 
this behringer box and it's VCAs would come in.

I've tried various methods of doing this in the past but none of them have 
been quiet enough. OTAs are too noisy outright. The digital control blocks 
have zipper noise. Just plain switching causes pops and sudden introduction 
of noise. And to build something like this from scratch would be both 
prohibitively expensive and time consuming. And there-in lies the rub.

I don't want to find myself having to learn and write HC11 code.Or any code 
for that matter. I now just need to know that I can slot it in with some 
mods and tell it to behave and it will. So I'm a bit concerned about this 
RS232 notion and getting whatever software is required. More to the point, 
that means it's not platform independent and likely to become redundant.

On the hardware side though, it looks like a pretty open structure from a 
hacking point of view.

But from the general consensus here it seems like it's worth making a play 
for. And If so, I'll take you up on that offer Peter. You can always use my 
FTP and I'm happy to host some files there if anyone else needs this stuff.

Thanks once again all. Very much appreciated.

Be absolutely Icebox.

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