Well the HCA1500 is a wonderful sounding amplifier but it is not a MOSFET power amplifier, the front-end is JFET and the driver stage is MOSFET but the output stage is BIPOLAR not MOSFET one other small matter with the 1500A is a bit slack in the HCC ability in other words if you drop below 4 ohms its good night. The HAFLER P230 is much more stable below 4 ohms and it has a much smoother and true tube like sound, the PARASOUND as they use just a wee bit to much negative feedback to achieve the bandwidth and damping factor they wanted but sacrificed some tonality to get the published specifications desired. The 1500A is a wonderful amplifier and not to be downplayed but the P230 is much more tube like and truly natural sounding and is 2 ohm stable but its 8 ohm rating does fall short of the PARASOUND but they are bridgeable at about 400 per channel into 8 ohms but you may need a fan too cool them down.
