NewYorkDave

Schematic request... don't laugh
« on: August 25, 2005, 09:30:27 AM »
Circa late '80s Ross 8x2 mixer.  :roll:

Yeah, I know it's junk, but I have one that I use for small PA systems, and it works just fine for that. Mine could use a little TLC, so of course a schematic might come in handy.

The web rumor mill sez that it's a copy of a similar Studiomaster design, but I take everything I read on the web with more than a grain of salt...

The mixer pictured below looks just like my Ross:



Samuel Groner

    Zürich, Switzerland
  • Posts: 2935
Schematic request... don't laugh
« Reply #1 on: August 25, 2005, 11:52:44 AM »
Oh, and if someone has a schematic for that ugly Ross PA amp (don't remember the model number right now) I have to use, please...

Samuel

Test Point

Schematic request... don't laugh
« Reply #2 on: August 25, 2005, 05:04:27 PM »
New York Dave, do you have a model number for that mixer? Does it have a built in PA? I have a schematic of a Ross "PC6400". It's really rough...it looks like a copy of a copy of a copy of a ..... I'm not too familiar with Ross stuff...it's just something I have in my file cabinet of schematics...not even sure where I got it.
Let me know
TP
"People of Earth, your attention please, a voice said, and it was wonderful.  Wonderful perfect quadrophonic sound with distortion levels so low as to make a brave man weep."

 "Prostetnic Vogon Jeltz

Schematic request... don't laugh
« Reply #3 on: August 25, 2005, 11:30:44 PM »
Eeeeyah!  That was the first mixer that I ever owned.  I used it to track with my Fostex X-15 4-track.  Ahhh the memories.  I seem to remember liking the color of the EQ, albeit noisy.  I even had the 8-chanel expansion module.   :grin:

Uhhh, oh yeah, sorry, no schematic Dave.

NewYorkDave

Schematic request... don't laugh
« Reply #4 on: August 26, 2005, 10:03:57 AM »
It doesn't have a built-in power amp. I'm pretty sure the model # is just "8x2", but I'll check later tonight. I pulled it out of storage because I'm providing a small PA for my sister's wedding tomorrow  :roll:

TK, I bought the Ross new at Manny's (or was it Sam Ash?) on 48th street and used to use it in my home studio, in the late '80s, with a TEAC 1/4" 4-track (7.5 IPS). My sole outboard was an Orban spring reverb. The recordings actually sounded pretty good.

Samuel Groner

    Zürich, Switzerland
  • Posts: 2935
Schematic request... don't laugh
« Reply #5 on: August 26, 2005, 10:23:31 AM »
I hope your mixer is not as sensitive to garbage on the power line as my amp. It's very hard to use together with a dimmer or even a video beamer. RFI filter does not help...

Samuel

Schematic request... don't laugh
« Reply #6 on: August 31, 2005, 10:30:26 PM »
I cant believe it.  I just cleaned my office and found this:

http://www.emediatransfer.com/chris/rossmixer.jpg

Dave, this is the first time trying out my new scanner.  Let me know if there is anything you can't make out and I will rescan/zoom.

-Chris

NewYorkDave

Schematic request... don't laugh
« Reply #7 on: September 01, 2005, 11:21:20 AM »
Holy sh*t! What a coincidence that you happened across that. Thanks!

The design looks pretty conventional, but then again I wasn't expecting any mind-blowing innovation in a Ross mixer :wink:

Actually, the L/R master section is kind of wacky. Notice how they saved two op-amps by making the summing amps do double-duty as the output amps? Geez...


 

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