Upgrading a 1994 amplifier


2010-11-01 5:56 am
Hello, please bear with me as I'm not a electronic techie, so the question may be too stupid.
Has anyone attempted to "upgrade" amplifiers from the nineties? For example, changing the typical E-I transformers to toroids, upgrading carbon based resistors to new technologies, maybe changing some transistors, etc. Does it make sense?
E-I to toroid is often a down grade and not an upgrade. If you really want to make a difference use the new caps like Panasonic FM for all the lesser ones and some fast switching ones for the main supply. It will sound much better. Look for low ESR and rating to 50kHz and above. Would not change those resistors on a bet!