I use 2 years Atoll AM 100, associated with pramp PR 200, a CD player Micromga SOLO, 2 speakers & a subwoofer Rogers LS7 Magnat Omega 300. This amp has replaced an Arcam Delta 90 (which had a Pioneer succd, heavy and dull) and t chosen APRS MUCH more careful amps in an auditorium srieux Marseille. APRS PERIOD ncessaire the running and the passing of time, the change is dramatic! What is striking is the gain in transparency and perennials. The orchestral image has become broad and deep, room acoustics recording trs sensitive (eg in the 2nd Symphony by Mahler Abbado Lucerne!), The sound is perfectly dtour pure the stamps are clear on all frequencies. Certainly in the most low frequencies, the box is not for nothing, it is still necessary that there is grain mill! Stamps each own orchestra (Vienna, LSO, Berlin, Chicago), each voice, are well rendered trs. The cellos, basses, timpani tt is sumptuous At this price, can we do better? I heard stuff bc more expensive, but for now I will not change.