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ramtubes

Responses from ramtubes

Does anyone care to ask an amplifier designer a technical question? My door is open.
@almarg Roger, I have a sincere question. What specific technical considerations lead you to be so negative about Ralph’s paradigm paperI hesitate to answer your question for the fire that will reign down on me. But this is the last I will deal w... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
I want to end this amplifier pissing contest. This is not the purpose of this thread. If someone wants to make amplifiers out of the accepted normal standards why would he be coming here? We are discussing normal amplifiers not outliers.99% of s... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@utrak I’ve got a question for the tube amp designers. How much of a difference does the power transformer make in a tube amp design? Is the output transformer more critical or the power transformer or both? I’ve read that the output transformer ... 
RMS Power?
@imhififan  Thanks for the nice words, Roger and ALI wish kijanik would join us in laying to rest this matter of three misplaced letters. It appears that three letters misplaced caused all the fuss.I will soon post a paper on my experience of the... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@atmasphere  Our MP-3 preamp is based on the first balanced preamp circuit ever sold to high end audio (our MP-1). It has a direct-coupled output (despite being a tube preamp) and has bandwidth to about 400KHz. Hum, This is a bit self promoting ... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@atmasphere    But here's the kicker: This thread was put up as a promotional device. You can tell because the manufacturer is talking about his products, often more than once in many of his posts. This is against the Audiogon rules, but because ... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@grgr4blu I have enjoyed posts by Ralph and Ramtubes on this forum. They are both highly qualified as designers and manufacturers. They both provide answers to technical questions about gear. Sometimes, they include opinions based on their under... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@fleschler  EAR 912 with tubes rated for 100,000 hours and non-microphonic. I have looked at the rating of many tubes, last I looked Tim was using 7DJ8s. Those are 10,000 hour tubes If you get 10,000 be happy. Most tubes are rated for 10,000 hou... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@pwhinson  I used to think that power was power with only minor differences in the sound.  However in trying to decide on the best amplifier for my Thiel 2.4s I've auditioned the Bel Canto m600s (their current production monblock), the Bryston 4 ... 
RMS Power?
@almarg  Imhififan, thanks for providing the additional link. Al, First please accept my sincere apology for anything I may has said to cause you offence. This has been a muddy thread, made worse by unvetted quotes from poor sources. These I hav... 
Does anyone care to ask an amplifier designer a technical question? My door is open.
@atmasphere If the capacitance of a cable causes rolloff, is that an artifact? 
RMS Power?
@imhififan https://en.wikipedia.org/wiki/Root_mean_squareThanks, this is most interesting. I note that the coefficient (mulitplier) for peak to peak is 2.8 for the sine, 3.5 for the sawtooth and 1.0 for the square. (divide those numbers in half fo... 
RMS Power?
@kijanki @almarg That author’s conclusions:It should be noted that the term “RMS power” is (mis)used in the consumer audio industry. In that context, it means the average power when reproducing a single tone, but it’s not actually the RMS value of... 
RMS Power?
@kijanki Al, I was right (he is not going to get it). RMS value of ANY sinusoidal waveform, having peak at 200 (of any unit) is 141 (of the same unit). 100W would be an average power value corresponding to VrmsxIrms and equal to half of peak power... 
Running Benchmark AHB2 in bridged mode and 4 Ohm Speaker
@kijanki I think, we are talking about two different things. I have never mentioned actual amplifier’s power at clipping but rather manufacturer’s specifications (that are quite different), that calls for power doubling (or close to it). I have al...