Ed,
They are pretty obscure and certainly were (and still are not) not marketed to the audiophile community. Having been (in the past) in the electronics industry for a long time you can rest assured that one of the reasons the price is so reasonable is that there is virtually no marketing cost (you have seen the PP.com website!). I tried one when ressurecting and old ARXA and was surprised that it did not sound too bad and I was stunned when it sounded better than my VP129 with the CA50 . I switched the TCC450 back and forth with the VP129 about 4 times not wanting to believe it sounded better ( again in this particular setup). A simple circuit with a low impedance power supply like a battery just seems to work well just look at the Hagerman Bugle. phonopreamps.com does however offer a lower priced decent quality alternative to the entry level name brands mentioned above.
Regards, Jerry
They are pretty obscure and certainly were (and still are not) not marketed to the audiophile community. Having been (in the past) in the electronics industry for a long time you can rest assured that one of the reasons the price is so reasonable is that there is virtually no marketing cost (you have seen the PP.com website!). I tried one when ressurecting and old ARXA and was surprised that it did not sound too bad and I was stunned when it sounded better than my VP129 with the CA50 . I switched the TCC450 back and forth with the VP129 about 4 times not wanting to believe it sounded better ( again in this particular setup). A simple circuit with a low impedance power supply like a battery just seems to work well just look at the Hagerman Bugle. phonopreamps.com does however offer a lower priced decent quality alternative to the entry level name brands mentioned above.
Regards, Jerry