Bests & Worsts Reviews from Amazon

I purchased this Polk sub woofer (psw505) 3 years ago - it was on sale around Black Friday (or around that time) for $179.00.. I had it hooked up to a Yamaha amplifier. I rarely used it - maybe 20 times in a year for an hour or so at a time. So last night I powered it up and within a minute or so I notice the bass was out. After troubleshooting the obvious, I notice there was no green light power indicator - no led - I switched the switch to auto and the led turns red, So i begin researching thinking this was an easy fix - no such luck. The symptoms are the same others have reported - the back panel (which is the amplifier) failed. This is a very common failure on Polk sub woofers. If you do decide to buy, don't purchase with the expectation of it lasting long. Funny enough, I bought the Polk psw 505 to replace a cheap (but sounded decent) KLH sub woofer - that KLH sub woofer was used more and I had it for over 10 years without any problems. I sold it. So to sum this review up - Polk's sub woofers amplifiers (Chinese) can expect to fail after a couple of years. The warranty for the amp is 3 years. The replacement AMP part will cost you the same price of a new sub woofer. So with consideration to this, You'd be wise to find a different brand or if you do buy, don't pay full price. If you do like i did - it will cost you $60.00 a year to use then discard to the land fill. I won't be considering any Polk Sub woofers in the future. Once bitten, twice shy. When Black Friday rolls around again in about 4 months I'll keep my Amazon eye out for a different brand on sale. Well friend I'll close with - that's my "Sound Advice" to you, spend your money wisely.