All, I had been 100% set on the A-S501 as my next amp replacing a Sansui 2000a. While overall the 'Sui sounds good, I am looking for more detail and better pacing. I listen to mostly punk (Clash, Pistols, Misfits, Bad Brains), alternative (Christian Death, Cult, REM), a little metal (Life of Agony, Mastodon, Sabbath) and in the last year reggae (specifically Dub). Warm but crisp would be a good set of adjectives for what I want to accomplish. What worries me is a few reviews that say the amp lacks pacing and excitement. Since I am not listening to jazz (though I have a dozen albums) I want a less laid back sound with good energy. Many have written the Marantz PM6005 is better in this regard (but then also said it lacks punch, which seems to be a contradiction). Anyone with the 501 listening to these types of music have any thoughts on this? System: Debut Carbon -> Ortofon 2M Blue -> Amp -> Focal 807v's on stands.