I have a Nikko 450 that a buddy gave me. I never hooked it up to the beta pre-amp because it just looked "cheap"...I took the shorting pin out of the back of my sony 909 strgx and used it as a source and pre amp into the nikko. I had hooked it up with 4 rf klipsch 82's and one m&K 2500 dual 12 inch drivers with on board 500 watt amp. This amp can put out very serious power with very low noise and distorsion ....music and bass was very clean and tight! However I discovered that it had loosend the srcrews in a couple of power receptacles in the basement causing them to "arc" and eventually cause power outage in those receptacles. The nuances from my speakers were nothing short of "AWESOME ".. very low slew rate on the nikko 450 at 150 kept the dual 8 inch references in check at all times. I played alot of music at 3/4 volume with no distortion what so ever. It is definitely not a krell but sonically it performs pretry damn close. If you find one in good shape with new caps definitely buy it .overall it' a very good amp...just make sure it has good ventation on the top of it or it will burn your house down.
