2. amps-preamps
  3. 1302620086

who makes auto biasing tube amps w/200 wpc

Let's simplify the matter.

I'm at a real loss here to think of tube amp makers whose amps are both auto bias and have good power, say around 200 wpc or more @ 8ohms?

Might could go as low as 150-175 but I feel 200 @ 8 is about right, and would like to get as close to that spot as possible.

BTW... Non bridged amps.

Many thanks
blindjim

Showing 1 response by magfan

magfan
1,583 posts
 
The difference between 200 watts and 100 watts is 3db.....not a lot....call it 150? I don't know how to do logs, but it is sure to be almost unhearable.

Autobias? terrific idea! Why didn't I think of that?

93db speakers MAY be able to use 200 watts if they are in a pretty good sized space and pushed. Running them at say......30 watts continuous with 9db amp headroom? Somebody do the math on that.
The other possible reason is large phase angle loading. In that case, I'd probably want to rethink tubes...
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