Krell FPB 600 or 400cx?

Why do you think the 400cx is that much better than the FPB 600? Anyway I am sure that the 400 watts is enough to drive the Revels with oomph and bass, especially if you have the preconcieved notion that the Cx is a superior amp. What are you using now?

I owned a 400cx for about 5 years and It is a great amp. I am assuming the 600 you are comparing it to is an older model before the C . if so i would go with the newer model.

The 600c is better. As a matter of fact the 600 beat my 350c monos and I got rid of the monos and purchased a 600. I now have a 700cx.

Do not buy a FPB 600, my FPB 600 is now a flower planter! I took off the top of the amp, removed the insides and put a plastic tub filled with dirt. it now hold beautiful flowers next to my fireplace. It now works better than it ever has. That was the most expensive amp I have ever owned that I barely used. It went back to Krell so many times I lost count. Junk! I had to build a wood crate beacuase the cardboard boxes would ware out and Krell would charge you for new box about every three round trips. If your Revels are a tough load in regards to impedance then FPB 600 is not your amp. It is two bridged FPB 300 in one chassis. Bridge amps only see half the impedance and are not stable much below 4ohms because they only half of the imdpedance. This amp could not run my old Apogee Duetta Signatures for very long before cooking it self off. Before I bought it Krell swore up and down it would drive my speakers with out any problems. I had no idea that it was a bridge amp until a friend who is great audio tech looked inside and told me. I asked the engineers at Krell and they finally admitted that the FPB 600 was two bridged FPB 300.