The potential value of any modification has to be evaluated on a case by case basis. I have a Parasound R-EQ 150, which is a small, 5 band equalizer with a bypass switch. We got it because my wife wanted the equivalent of a loudness button for our new system (because she likes extra bass). So the settings on the unit were configured to her liking, and all she had to do to get it to "equalize" was to disengage the bypass switch with a little button.
The problem: Even in the bypass position, the unit constricted the soundstage. The solution: Modify the bypass circuitry by upgrading it to emulate a hard wire connection. Cardas posts were also put on the back. Now there's no significant degradation that I can perceive, IF the unit's in the bypass mode.
The cost of the mod was almost certainly more than that of the unit at full original retail. I know it can't be recovered if the unit's ever sold. I don't care. It worked and I'm happy with it.
The problem: Even in the bypass position, the unit constricted the soundstage. The solution: Modify the bypass circuitry by upgrading it to emulate a hard wire connection. Cardas posts were also put on the back. Now there's no significant degradation that I can perceive, IF the unit's in the bypass mode.
The cost of the mod was almost certainly more than that of the unit at full original retail. I know it can't be recovered if the unit's ever sold. I don't care. It worked and I'm happy with it.