[Valenti]

A few additional comments:

First, the mods I performed had the caveat that they were a workable solution for those who could not or were not willing to change the HU. No argument that an after-market HU would be superior.

Next, unless we're disucssing microphone preamps, the preamp output on an HU--so long as it comes directly from the pre and not from speaker outs--is less of a factor than the amp being fed, and the speakers reproducing the sound. Again, a system will only be as good as the weakest link.

However, testing done in another form revealed what we've all seen, which is that the Bose HU has a variable EQ circuit designed to compensate for using cheap speakers and cheap amplification. The result is emphasis and de-emphasis at peculiar frequencies--hence the rationale for using the EQS.

I'm not an audio engineer, but I am a musician and I have a lot of recording studio experience. I trust my ears--but that doesn't mean they're "right" or "perfect."

The goal of this thread was how best to live with the existing HU.