I just sold my Classe 15 which had excellent bass. I have heard the Krell 750monos at a friends and they were awesome, simply staggering sound quality...then we realized that we were listening to the AudioResearch tube amp sitting between them. A big older 250watt tube job, go figure. The Krells were excellent too but for the price it was a no brainer.
My two cents.
My two cents.