GOING TO SELL FOR CASH SOON! inquire asap! Pair of Black Ice Audio Tube power amplifier mono blocks, with KT150X4 tubes. making a crystal clear, unheard of, no hum, 120watts per block, bridgeable, though why?, I love these amplifiers I paid almost $12,000 for them with the tubes when I bought them back in 2020. You can get a brand new pair for right around $9000 but that's with no tubes, you're going to be upwards of $10,000 or more buying brand new and getting all the components necessary. and I don't believe they recommend running the KT 150 tube on the newer models. So they don't reach quite as high of wattage that could be achieve. These are the old generation when Jim fosgate was alive and had a hand in the manufacturing of them. i'm letting the pair go for 6900 bucks I'll be open to taking reasonable offers. any type, this buy includes the tubes. Both of the units, two total and the original box and chords. excellent condition