I agree with improving the source. Either a DAC or a better CD player. This will provide an amazing improvement. If you go with a DAC, you will need a Digital Cable. I would also suggest replacing your interconnects. Try some used Virtual Dynamic Nites - They have been going for $310 on Audiogon. If you are not happy with the bass, try a subwoofer. This may help take some load off your amp. Another thing to consider is replacing the power chords. Again, the Virtual Dynamics as many others make a big difference. I think you will find that all of a sudden your amp upgrade could wait a while.