Amp upgrade question


I have a passive bi-amp w/ two CJ SS amps. I can pull this off because they have the same gain, sensitivity and input impedance. The amps are an MF-2500 upgraded to a 2500A running LF and an MF-2100 running HF. 250 WPC on the LF 100 WPC on the HF. I'd like to get better performance on the HF. It's not that I need it louder so much as wanting it better. It's not bad now by the way.The question is should I throw $500 at an upgrade by a great shop (new Cardas Rhodium RCA's,speaker binding posts, silver wire, faster/better PS diodes) or just buy an MF-2250 which show up here for 900-1200 usually. It is a more recent amp with better quality and 120 WPC which would also be the exact match needed for my passive bi-amp in terms of input imp., sens, gain. I would love to have tubes for my HF amp but feel I would need a power amp w/a gain control as finding those same needed input specs would be tough. I use a passive line stage. Thanks in advance for any suggestions.

ET
electroid

Showing 1 response by samujohn

Have you tried simply exchanging the amps to see if you like the HF of the 2500A better? I upgraded from a 2300A to a 2500A and I thought it a worthwhile improvement.
I am also skeptical of third party upgrades to something as evolved as a CJ design. Better parts may not lead to better sound, because the designer made his choices based on sound as well as price.