I never used the treble control on my speakers, but if I increase them to +1.5-2 the speakers sound more like they should so I'm thinking the tweeters are on the outs - I'm looking forward to seeing how the new tweeters liven them up - I'll post on Friday how it turns out.

1. 568.2mm & 3xDSP5500 2. 565/562 & DSP5000's 3. Director & 568.1 & Edge Amp & Klipschorns