I used this amp for about 2 years with Martin Audio ICT500 and I must say this is an amp not very nervous, I Was disappointed, it is very heavy in the rack you know it's there. .. an advantage it is very resistant you can put him in the face. I bought an intermediary M2000 has instead: There's no photo. One last point it heats a lot compared to the M2000 which is a real fridge even after 8 hours of operation ... the connection is crappy, noisy, and it gets dirty easily clean enough for frequent opening it front of the fan