Soulution 511 vs. Luxman m900

@hiendmmoe Are you referring to the BAL LINE PHASE INV switch?

http://www.luxman.com/product/detail.php?id=19

@almarg Would you mind expanding a little on your statement

In that situation an alternative approach to achieving correct overall polarity would be to use a pair of XLR cables between the preamp and power amp which have the connections to pins 2 and 3 interchanged at one end

I plan on getting the m900u and trying it with the USA made Benchmark LA4 preamp. I plan on using XLR cables from pre to amp. Your statement above is my scenario. How does one actually interchange the connections to pins 2 and 3?