Adding Tone Controls?


My system sounds wonderful when playing well recorded jazz, classical, or "audiophile approved" material. Unfortunately, mass market pop frequently sounds horrible, with screechy splashy highs. It's obviously recorded with a built in bias to be played on car radios or lo-fi mp3s.
What can I add to my system to tone-down the highs on this sort of material? Sure, there's plenty of well recorded material to listen to, but there are plenty of pop rock bands I'd really like to explore if the recordings could be made a bit more listenable.
bama214
Thanks for all the responses.

I definitely agree that an equalizer of some sort is probably needed. I like the idea of being able to switch this tone modification out of the loop when playing decently recorded material. The two methods suggested (either via the tape loop or as a separate path from the CD transport) both have merit. The Behringer sounds like a bargain.

Relative to Al's comments - yes, my system still includes the Goertz cables, and I am using the Zobels. You bring up good points relative to the capacitance issue. I had thought that the Pass X250 could handle the load without too much problem, but it's worth further investigation. The counterindication, however, is that the system sounds fabulous with good recordings.
Free advice: Try toe in/out first. Every mm makes a huge difference if you are listening in the sweet spot.
Guess that means the folks at Mcintosh,Accuphase and AVM are a bunch of hacks to include those controls.
Post removed 
Check out the DSPeaker Dual Core 2.0. A fabulously flexible unit that gives you DSP for under 500Hz, and a full EQ for the entire audio listening band. Balance controls too.