Generally, I would say "yes."
We perform mods on amps and speakers, and reserve "parts swaps" to clearly inferior components. By looking at a photo of the back of the unit, does not appear to be the case here. Without the ability to see the inside, it’s difficult to say, but my guess is that they used "good stuff" on the inside as well. Our "modding" goal is not to paint a mustache on the Mona Lisa, but to try to reveal the sound quality the original designer would have produced if they had a) more time, b) more money, c) "newer" thinking, or other constraints.
The most basic, and surprising, upgrade (for me) is cable quality in both signal and power. Sonic improvements are absolutely shocking in some cases. Snipping off spade and lug connectors and direct silver soldering helps, too. (Warning: going to drop an "F-bomb" here). If you haven’t done so, you might try an audiophile FUSE in place of the OEM fuse. You can usually try and return. And, the unit can be returned to "stock" in seconds. Note, that nothing mentioned above changes internal parts or changes the "basic sonic character" of the amp you already like. Just getting things out of the way that degrade its potential.
We have 2 identical amps on hand. One stock, one not-so-stock. The "modded" amp doesn’t just sound better. It sounds like it was built in a different factory at twice the price of the original amp.
The challenge is finding the "right" tech to do the work with experience with the same amp. Might be easier to find the Matco Tool Guy at a Mary Kay convention?
Good luck.
