coffmanlabs

Responses from coffmanlabs

Speaker wants 100 watt RMS. Is 40 watt tube OK?
Lot's of good info in the responses.  As a tube amp designer my 2 cents worth is that no mention of power supplies yet--and that is also a very key factor.  An excellent choke driven power supply can deliver instantaneous power which can be much m... 
Full Range Drivers and SET's, why is a classic combo?
Another possibility for better bass response with still a "SET" sound is a 6W6 Push-Pull Amp that has the screen voltage properly tuned--this will give amazing response.  The 6W6 is one of the most linear tubes made and very beautiful in this conf... 
The term "High End" needs to die. Long live Hi-Fidelity!
Well said CD318At the end of the day, your ear is really the only reliable personal testing tool.  I have designed many, many amps of every type and have never found electrical measurements of distortion, IM, etc, useful except as a first cut to m... 
The term "High End" needs to die. Long live Hi-Fidelity!
The heart of the original proposition, I think, was to consider that money does not always equal best quality.  Since I'm getting close to meeting my maker, I had the opportunity in the 50's and 60's to build amps out of various magazines--and fou...