Polarity with SCD-1


I was just reading the review of the SCD-1 in Stereophile.
It states that there is a problem with the absolute polatity when running balanced that will need to be compensated for by reversing the speaker leads.

I have an all Krell/B&W system, with electronic crossover with quad wired speakers.

Is the above true and what does it mean? Has anybody out there dealt with this (problem)? Would pushing the phase button on the preamp solve the problem.

Thank you,
Richard
drrdiamond

Showing 3 responses by ivanj

To avoid having to switch polarities for different equipment, this is what I did. Most US equipment uses pin 2 hot versus the pin 3 hot config on (most) Japanese equipment. What I did was have Cardas reterminate my balanced Golden Reference cables - at the source end - to make the SACD output phase correct with the rest of the equipment. It's important to do this at the source so the + and - legs both use the same conductor. Often ground/shield is a different material from the signal bearing parts. Also, the Sony generates its balanced audio signal thru a series of cheap op amps, many prefer its signal ended operation as purer. YMMV. How's that for anal?
Yes, the phase switch will solve the phase issue but not the way these units (not just the Sony) generates a balanced signal.
LAte night truncation of thought...what I mean is that the Sony is not a purely balanced differential design throughout. And the phase inversion switch won't make up for that.