Bests & Worsts Reviews from Amazon

I bought these speakers five years ago. I was an audiophile years ago and am very sensitive to sound quality. The speakers sound fantastic. The subwoofer really is exceptional. After two years, it suddenly seemed that I had blown out the subwoofer. In retrospective, though, the problem was with the internal amp. I bought a second pair. Right from the start, the was a minor, constant, hum. I thought there was a problem with the grounding in my old house. But it was frustrating. Several months ago, a problem developed with the amplification in the left channel. At that point, I looked at many reviews and I found the problems I had had with both sets of speakers are common with this product. Too bad. I came here to post that in researching the issues I discovered a very easy work around. Now both sets of speakers are working and sound as good or better than ever. I purchased "2.1 amp" for $35 on Amazon plus 24 volt power adapter for $20. Now the speakers are run simply by connecting the speakers wires to the new amp. To do that, I had to open the back of the subwoofers. It was all very easy. I will post the link to the amp and adapter. The amp includes a control knob to adjust the crossover frequency of the subwoofer. That is an extremely useful feature. It also has Bluetooth. Consequently, you might want to do what I did even before your Klipsch amp breaks. Klipsch makes great speakers but not great amps. I guess that's not surprising. https://www.amazon.com/gp/product/B089KT3FG9/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 https://www.amazon.com/gp/product/B01GC6VS8I/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1