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Anyone have schematics for the Sunn Coliseum 300 solid state bass amp?
I've only been able to get an owner's manual.
I've only been able to get an owner's manual.
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Nothing, huh? -
http://sunn.ampage.org/site/svcmans/...oliseum300.exe
Save Target. Run MiniViewer and list manual with Page >>It's All Over NowComment
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That is a link to the owner's manual I found earlier, and it does not contain a schematic.
It's (mis)labeled on a couple of sites as a service manual, but it's an operations manual with a couple of block diagrams.Comment
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This is all I have scanned.Education is what you're left with after you have forgotten what you have learned.Comment
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I have that 13-page PDF as well, but it depicts an earlier Coliseum Bass.
The one I have in here now is the one shown in that operators' manual, with the 7-band EQ, etc. Says "Coliseum-300" on the front.
It blew the regulation on its +15V supply, and there are some crisped-beyond-recognition components on the front panel preamp board.
I've asked Fender a couple of times, and they sort of go "uhhhhh."
If I could find out what the value of R11 on the preamp/EQ board is supposed to be, I'd be back in the fight for a while.Comment
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When Fender bought the Sunn name, the Sunn company was long gone. Fender would have the same schematics that are floating around the internet if they had anything.
I'll see what I can find, but have you gone on the Sunn forum? You can get there through our Guitar AMp section here, it has its own little section.Education is what you're left with after you have forgotten what you have learned.Comment
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Thanks, vintagekiki, but those are the earlier Coliseum Bass schematics.
The one I was working on is the Coliseum Bass 300 from the late '70's.
Amazingly, Fender finally came through and I just uploaded the actual schematics to Ampix.
Unfortunately, the amp itself is getting airlocked. The explosion on the +15V supply killed about a dozen dual opamps and a SSM2013, maybe others, too.
Probably repairable, but not within the replacement cost of the entire amp.Comment
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