So I have has some issues with my Kappa speakers blowing so at the recommendation of a few people I ordered and BT 355 line leveler. Well I should have called HT first because the line lever will not work with their amps. HT builds the technology of a line leveler into their amps. Anyone ever hear this before. That is right from HT on the phone. Hopefully BT will take this brand new line leveler back and refund my $$. Just a heads up for anyone who is thinking this will work.