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  3. 133446-75518

Taming the high frequency

Looking for ideas/suggestions to tame high frequency harshness. Recently installed a Lexicon MC 12 processor after my Krell decided to go to the electronic graveyard. Since I did not have this issue before I'm assuming the Lexicon is more revealing. My dedicated listening room is 15X23x8 and is treated with GIK 244 and 242 panels along the front and rear wall at ceiling junctions and Accurex bass traps in the corners floor to ceiling. Along the front wall behind the speakers are some decorative thick blankets for absorbption. No slap echoes anywhere in the room. Room is dual purpose H/T and 2 channel stereo listening with separate systems. Systems consist of Proceed Pre, Adcom 555II Amp and B&W 803d speakers for 2 channel and Lexicon Pre/pro, Polk speakers for H/T and Emotiva XPA amp. How can I diminish the high frequency harshness I'm experiencing? Any ideas or realistic suggestions?

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Showing 3 responses by noromance

noromance's avatar
noromance
9,486 posts
 
Consider replacing the Adcom for a tube power amp? Solid core speaker cables? Duller interconnect like the Audio Sensibility Impact?
noromance's avatar
noromance
9,486 posts
 
Tissue paper over the tweeters a la Yamaha NS10s in the studios back in the day!

noromance's avatar
noromance
9,486 posts
 
Can’t the Lexicon be adjusted to tailor the sound? Looks like it has all sorts of settings. Reading around, I see a comment about it being harsh. The Adcom is pretty bright and B&Ws can be a bit up there too. And it’s a digital source. If no good results from adjustments, try your rig without the Lexicon.
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