landrover15

Maybe this will help someone with the rattle issue: READ - This is about the rattle in the subwoofer. I recently bought the Promedia 2.1's from Best Buy for $149. Great price considering the Prime price on Amazon was up to $188. Well, I didn't get the 2 yr warranty but I thought maybe I'd return before before the 2 week window to add the warranty. After noting the overheating issue on the back of the subwoofer almost immediately, I decided for $20 I'd go back to Best Buy and add the warranty. My bad, I couldn't find my receipt after only about 10 days to verify my cash purchase. To make matters worse, today, the day I planned on adding the warranty, the subwoofer developed a noticeable (very noticeable) rattle. Forget about the warranty... I NOW WANTED TO RETURN THESE and instead get the Corsair SP2500 2.1 system at about $400 vs the $149 I paid for the Promedias. Without the receipt, however, I've probably just thrown $150 out the window. Just in case Best Buy wouldn't work with me on a return or exchange due to my lost receipt, I decided to look for a fix to the rattle in case I had to keep them. Thanks to this thread I started trying to chase down the rattle and a possible remedy. Based on the responses here I determined that my rattle which just appeared out of nowhere, wasn't from a blown subwoofer, but some kind of rattle between parts, probably due to inexpensive mass production assembly. FIXED ABOUT 95%!!! I ran the text for the frequency where the rattle occurred at http://plasticity.szynalski.com/tone-generator.htm (thanks TwoCables for the link!) Once I got the most noticeable rattle (between 50-90Hz) I let the tone play nonstop, then started trying to re-position the sub. Well, certain positions made the rattle WAY worse while other positions almost did away with the rattle COMPLETELY! Turns out that facing the speaker grill down to the ground and adding a few rubber footpads under the grill-side to still allow for the speaker to move air, the rattle is now all but gone! It's maybe 95-98% gone. So, it's gone to the extent that it's now almost totally noticeable in the rare moments that it does still happen. Needless to say, the speakers by rotating the sub, sound great again. The bass is strong and darn near 100% rattle-free. Some Notes: In the 10 days I've had the Promedias, I've never once turned the volume up past what would be about a 6 volume level (just past the half-way mark). In addition, I've never turned the bass past the half-way mark, or in other words, I kept it at about a level 4. This is important, because this illustrates that this is an issue of design and/or production quality - not an issue caused by product abuse. So, Klipsch needs to remedy the build/production issues with this speaker system. The speakers are a great value at $150 but the rattle mine developed with little use and no abuse was unacceptable at any price over $50, let alone $150 but most importantly for any product bearing the prestigious "Klipsch" name. If Best Buy won't let me exchange these they're at least usable again - thankfully. THANKS AGAIN FOR THE POSTS HERE THAT GOT ME ON THE RIGHT TRACK FAST.