Dreadnaught is a very musical amp. I have been using one for 20 months without any problem. It does run hot, especially with all five channels driven. If you put your hand on the top cover you will feel uncomfortably hot in about half a minute but it will not burn your hand. So make sure you give it a lot of room to breath. I use it to drive Martin Logan SL3 bi-amped and lately Vandersteen Model 5 bi-wired, two very different speakers with very different loads, both with great results.
