Upgrading amplifiera.

You can or you can be happy with the equipment you have. It's a personal choice but for me it builds the upgrade flame. If you buy it right the first time chances you'll die before you need or want to change anything. Having a well balanced system that works well together and serves the music and you're done. My system doesn't do fireworks but it plays music well or well for me. I bought my system in the mid 1990's the only thing I do is changes caps and bias the amp every 10 years or so. Someone willing to do that can play it for a lifetime.

do it before the electrolytic caps blow up

otherwise, not the most important aspect of SQ - speakers, room, cartridge/turntable, DAC all come first

Do most people send their amps in for repair, then have the repair guy say, " I have some great upgrades for this amp ". 

Kalali, I was trying to be humorous, but you essentially have tubes, caps, and resistors in the signal pathway. And there is practically no upper limit to how much you can spend on the caps. :)

Best,

E

Some companies are really good about the upgrades in terms of price, they want to keep there babies up and running and owners happy. I think others view it as a money making proposition. $1,200 for these "fabulous new caps " etc. On the down side if you ever do sell your amp the upgrades don't count for much and can be a liability. ( who did the upgrade and how was it done ) can raise other issues with the buyers.