Why not simply insert the PG EQ plugin and chop the bass freq's a tad? And then open the BIAB mixer panel and reduce the bass volume?

The other thing you need to realise re the Bose is that when the sub is close to you it SOUNDS like it is really bassy, but go out into the room, and the mix is perfect!

The thing I did was buy an extension Bose sub cable (20ft I think it was) and position the sub further away rather than 6 feet behind me smile

Got a good sound then, without tweaking anything smile

By the way the Tonematch is okay, but don't believe ALL the hype that surrounds it. A bit overpriced imho for what you get.

Dennis