Originally Posted by
RothwellAudio
Why is the output of a phonostage being fed into a step-up transformer? Surely the output of the step-up transformer should be fed into the phonostage?
My suspicion, though this is just speculation, is the The Truth is a bit of a wacky "minimalist/purist" design using video op-amps running at unity gain and in order to use the minimum number of components there is no DC blocking cap or series resistor at the output. A series resistor of about 100 or 200 ohms is considered good practice because it isolates the op-amp from capacitive loads which can send the op-amp into oscillation. An examination of The Truth in isolation might show no problems but when the interconnecting cable and the input to the ARC amp are added there may be enough capacitance to send the op-amp into oscillation.
Anyway, that's just guesswork, but it is a possibility.
Jajaja - no of course the hashimoto feeds the Vida, the Vida the truth. Sorry about that.
Technics SP10 mk2
Jan Allaerts MC 1 Boron mk1 cart
Miyajima Shilabe cart
Hashimoto HM-X SUT
Siggwan (gimballed not unipivot) Cocobola 12"
Aurorasound Vida LCR Phonostage
The Truth linestage
Dave Slagle Autoformer Volume Controller
Cary 805c SET amps
Audio Note ANe-SPX speakers
Townshend Isolda speaker cables
Cardas Golden Presence interconnects