I just received my Kern-777 pre-amp. I love it. I'm using it with a Crest LT 1500 power amp. I've owned an Aguilar DB 359, Swr 750, Ashdown Abm 500, Gk-1001 , and I think I have found the sound I've been searching for. The tone is so pure I can't believe the difference. I love the headroom of the power amp . I'm pumped!!!