Hi guys, I have had several amps (Kenwood, Rotel, CA, NAD, Marrantz, Advance Acoustics, Vincent, Cyrus) and my favourite was Cyrus. However, I missed the dynamics, tightness and strength in handling of bass of 851W. Cyrus was also second to none when we say tightness and speed but I feel some difference in handling bass. I feel Cyrus's bass handling is more soft and warm. My Cyrus power amp is X Power with PSX-R. I am curious what other people say about 851W (sound signature) and which amps have similar/better characteristics (strong and tight bass with punch) with 851W.