Thanks for the responses....the one source that I'll also have connected via XLRs has the US-version polarity arrangement, so that helps rather than hurts the situation. My speakers are passive and I am using a sub, but it is connected directly to preamp outputs on the LS-15. My head tells me to reverse polarity at the amp outputs, but my gut says to wire as normal and see how that sounds first. It doesn't help that I haven't had the speakers I'm using (Vandersteen 3As) very long, so discerning any subtle differences, if any, may be difficult.
Polarity Conundrum
I recently bought an Audio Research LS-15 preamp and an Accuphase P-450 power amp from other Audiogoners. They will be connected via the balanced XLR ins/outs, but the polarity scheme is the opposite in each piece. The LS-15 is Ground/Positive/Negative, the P-450 is Ground/Negative Positive. Someone(s) on another thread suggested that the simple way to address this polarity inversion is by swapping the speaker leads to the amp to the opposite connectors.
Instead of positive to positive, you go positive to negative/negative to positive on the amp's output terminals. Can it be that simple? The Audio Research manual says to contact them when this situation is encountered, but if this simple fix will work, I'm all for it. What say you guys?
Instead of positive to positive, you go positive to negative/negative to positive on the amp's output terminals. Can it be that simple? The Audio Research manual says to contact them when this situation is encountered, but if this simple fix will work, I'm all for it. What say you guys?