I have used my Denon 110 between 1-5 hours a day for the past three and a half years, and lately I noticed the highs are beginning to sound a little muted. Could I damage my records by not replacing the cartridge right away?
That's quite a few hours, I agree you may need a replacement. As mentioned check your set-up and try this cheap method to clean it; http://www.high-endaudio.com/Magic.html
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