Sound City DR104 ONE HUNDRED

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Sound City DR104 ONE HUNDRED

Postby zen.state on Fri Jun 26, 2015 6:41 pm

Hello peeps

I just got a new amp; But Im wondering : What makes a DR104? There are lots of DR103s around, well I think, but I'm curions to know about the DR104;

Thanks in advance;
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Re: Sound City DR104 ONE HUNDRED

Postby Baron Von Machinenmann on Fri Jun 26, 2015 7:28 pm

OUTSTANDING SCORE!!!!!

:cheers: :highfive: :mrgreen: :jam: :thumbsup: :urawk: 8)
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Re: Sound City DR104 ONE HUNDRED

Postby sound city 69 on Sun Jun 28, 2015 2:16 pm

Where did you find that? :not_worthy: I think the Hiwatt section is where to post that question. Can you post a picture of the front panel showing what all of the knobs control?
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Re: Sound City DR104 ONE HUNDRED

Postby Papa Dog on Thu Jul 02, 2015 2:11 am

looks like a HiWatt CP 103, sorta/kinda
Reeves worked for Sound City when they first started making their own amps.
built most of them, in fact.
had some business issues and parted ways, and Sound City kept building amps according to the DR design.
Or, kinda did...quality was an issue as was attention to detail.

That particular amp appears to have been built by HiWatt for Sound City and would be the crowning jewel in most any serious Sound City collector's stash.
But...it does need some resto, IMHO.
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Re: Sound City DR104 ONE HUNDRED

Postby Highwaystar on Sat Sep 12, 2015 8:10 pm

Sweet find Zen, so how are the four different channels voiced?
Would you think D.R. called it a DR104 because it has four volume controlled channels with 100watts?

It looks like it has a Mid control added to it, I can't remember that as a option, the knobs aren't original.
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Re: Sound City DR104 ONE HUNDRED

Postby zen.state on Wed Oct 21, 2015 3:28 am

Can anyone point me to the schematic for this amp please?

It's still not working ok. When valves are installed (el34s) the b+ falls 50 volts on the plates and the amp doesn't have full volume and distorts early. Occasionally it had appeared better (??) . I've replaced the supply caps, but not precise values.

yes. Its had the tone controls replaced. One is stuck and it looks like the middle has been added. Input 3 seems more to my taste but I haven't got my head around how it's different electronically etc.

I've been given the original cabinet. It's rotted away at the bottom, no back. And the badge has been replaced with a very early Marshall badge, black logo on gold background. I can see the holes where a larger badge once was. Perhaps a sound city badge.

I really need a schematic.

Any help gratefully received.

Thank you.

Pics soon, hopefully.
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Re: Sound City DR104 ONE HUNDRED

Postby zen.state on Wed Oct 21, 2015 12:36 pm

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Re: Sound City DR104 ONE HUNDRED

Postby E-Rock on Sat Oct 24, 2015 1:56 am

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Re: Sound City DR104 ONE HUNDRED

Postby zen.state on Sat Oct 24, 2015 7:11 am

Many thanks. :cheers:
"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great."
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Re: Sound City DR104 ONE HUNDRED

Postby zen.state on Fri May 05, 2017 12:56 pm

"Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great."
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