Integra DTM-5.3 Receivers

I bought this receiver used almost 5 years ago in spite of the 1 unfavorable review herein. The receiver is still performing flawlessly. I bought it because it put out 100 watts per channel and had inputs for my CD player, turntable, 2 tape decks, and...

Works quite well BUT I am now on my 2nd or 3rd repair in 6 years, which I don't find acceptable. The "Protect" light goes on, and the unit switches off. Last time this cost me $160 to repair. Not sure it is worth it.