Roland I fully agree with your observation that the 2235h can handle a lot of power and produce significant clean bass. I have a Yamaha Pro PC4002m amp (420x2). My L300 Summit came with 136a woofers (300 watt version) which sounded exellent but I couldn't resist installing 2235h woofers making them L300a Summit (400 watt version). The 2235h handle more power and the bass is so good that I feel I would have to add a B460 to make a significant difference. For very reasonable $$$ the older top of line Yamaha home and pro amps are hard to beat.