One cautionary note: RELs appear to not work well with certain amplifiers (dual differential I guess it is), such as my Pass X-150 and I believe most of the Krell amps. Special wiring configurations are recommended, but I could never get a satisfactory result with my amp and just punted on the REL. Perhaps I should have punted the Pass instead, but that's my story. Never could get a good explanation from Pass or REL, though they tried and I suspect both think I'm nuts, which may well be true.
