Usually an otl amp with 10 x 6as7 can have 4 removed and in their place have an opt installed to give far better hi fi performance more po and use far less power from mains and run cooler.
Otl amp vinyl.
Or a stand alone otl pre amp.
The only real disadvantage of an otl amplifier lies in its incredibly complex circuit which results in very expensive manufacturing techniques.
Few people in the high end know the difference between glorious excess and wretched folly as well as harvey rosenberg footnote 1.
The damping factor of the einstein the silver bullet otl amplifier is at a minimum a factor 5 or higher compared to a conventional tube amplifier or even in other otl realized concepts.
My amp shown above 10 watts channel by berning no longer in production alas is single ended and in actual use is like an otl type amp the best of both worlds.
Bruce rozenblit designer of the transcendent sound otl amplifier has solved all of these problems and has built an otl amp that.
Harvey s audio equipment always strives towards the glorious folly of providing the most romantic sound possible with modern technology.
Audio asylum otl asylum otl output transformerless amplifier user group.
He calls it zotl to differentiate it from otl but the result is the same.
Otl asylum otl output transformerless amplifier user group.
The attractions are obvious less cost less weight shipping costs too and the avoidance of distortions from transformer sounds obvious.
This may explain why his relatively small company new york audio laboratories can build an amplifier like the futterman otl 1.
The otl 3 s were most recently running a pair of 1959 klipsch khorns 16ohm they are a fantastic match when corresponding with ted hammond he said that they were near perfect impedance for the otl 3 stating that the amplifier was designed to have full output into a 25 ohm load.
Such a drastic solution allows the otl amp to become a normal transformer loaded pp or se amp using the same tubes usually 6as7 or 6c33c.
Runs relatively cool generating only about 275 watts of heat compared with the 1 200 watts to 1 800 watts produced by other otl amps.
Faq search asylum trader new topic general amp.
This is the best sounding tube amp i ve heard.
Which brings us to output transformerless otl amps a valve amp design that has been floating around for many years and as its name implies does without those big output transformers.
