i bought this monster second hand ,it build solid and good looking , its really powerful but rate 5 X100 only , in my opinion ,its around at least 150w per channel , i have whole set of nht speaker that its not efficient speaker and it did very well on it , the high notes sharp but not bright , and the best thing was this amp did well on movie for sure as this is a 5 channel amp and it also did well on music or cd part . i have been owned a few bands power amp , like nad 218 ,rotel 1095 , earthquake cinenova ,parasound a52 , and this is a amp that did good job on both .don't hesitate to bough one if u can find one , it won't lose the quality compare to the power amp now a days .