I need help with my B&W DM 602 S2

[JohnMichael]

I enjoy my Monitor Audio RS 6's when I use the DNM Reson interconnects. My other speakers have a silk dome and they sound best with Alphacore TQ2 interconnects. I would try some different cables before I would try to mod the crossover. I find that cables
can make a very audible change in the sound. I find silver coated copper cables to be very bright.

[Mash]

Messing with the crossover is neither simple nor low risk. You could shift the crossover frequency while your complaint seems to be more about magnitude rather than crossover frequencies.

If the tweeters do not have an attenuator, you could add one to each tweeter, but you would want them accessible from the exterior. Understand the probable impact on resale value.

Thin adiabatic foam, thin fiberglass or cotton/wool cloth over the tweeter might help. Might. Control of the process & results would be tricky but the risk should be low.

I would try fabric or acoustic wall treatments near the speakers first.

I am not a wire maven.

[RGA]

I don't have time to look it up - but go to audioasylum.com - speaker forum and look up posts by a poster named Layman - who has looked into the measurements of of B&W speaker's high crossover point and the characteristics of their Kevlar woofers. I concur with my ear and always have felt something was amiss with the mid/tweeter handoff and the sonic signature of these choices in materials. To me they make speakers that people tend to want to upgrade/modify - and any speaker or any product (perhaps except turntables) that you have to modify and tweak has problems - there are cottage industries out there and people making a living trying to "fix" numerous rather famous loudspeaker makers and B&W is one of them - and I'm never quite so thrilled with the sound of any of these famous very popular brands as they usually end up costing more after the modifications and numerous eqipment changes than something else that works and sounds better out of the box for considerably less money.

Interestingly though I actually like the 600 series more than some of their more expensive lines - but having said that the treble isn't as good as their more expensive lines. Their tweeters seem to have a designed in resonance - and even their advertising discusses this as you spend more on the better lines the treble improves with better tube tapering. However, reading between the obvious lines there that means the lower model tweeters have an obvuious issue that only the more expensive models fix. Still this is true for most of the competition so B&W is hardly alone. There is still a budget crunch. It's a sub $1k loudspeaker and you can't expect everything.