Polk Audio RM6750 Sub Home Theater Powered Subwoofer Pre-Owned Polk Audio RM6750 Sub Home Theater Powered Subwoofer. The sub comes tested and working as shown in the video and photos. I had to make 3 videos because when the base hit it was rattling the dishes in the island that I had it on. Kept having to turn the volume down until this stopped So, IT HAS POWER! The top right corner has a ding as does the top right corner of the grill as shown in the photos. Please use the photos to determine the condition of the sub for yourself. We have many more speakers in our store so be sure to check them out. We get more in every day. Ships insured. We have many more exciting and unusual items in our store. Please feel free to brows our items and don't forget to bookmark us for future shopping needs. You can also sign up for our news letter that goes out each week with all the new items that come in!!! Links to these can be found above at top of page. BY PURCHASING THIS ITEM YOU AGREE TO THE FOLLOWING TERMS AND CONDITIONS IF Free Shipping is offered it is extended to the CONTIGUOUG U.S. Only. Shipping to HI, PR, AK, US VI....etc will cost more to ship and you will be asked to just pay the additional shipping cost. Please read entire description view all photos before buying. Contact us with any questions you might have about an item. We are not experts in anything we sell and we do not pretend to be, so some of our knowledge may be limited. All items are sold AS-IS, AS-FOUND, and ALL SALES ARE FINAL, unless otherwise mentioned in auction description. PLEASE ask questions BEFORE you bid or buy. We'll be more than happy to answer any questions you have PRIOR to purchase. All items are described to the best of our knowledge. All payments MUST be received 10 days after auction end. Occasionally returns are necessary however return shipping fees are the buyers responsibility. I reserve the right to EXCHANGE the return with the same item if I have it in stock to do so. I will ship the return back at my expense. As with any business there are absolutely no refunds on shipping cost! We reserve the right to chose an alternate shipping company on any and all "Free Shipping Items". Most items ship UPS however we also use USPS depending on the size and weight of the item. We also take into consideration the insurance aspect of shipping you item. Since we pay for the shipping we reserve the right to pick and chose the best shipping company to get your item to you in the most economical, safest and secure way. Shipping: Your package will usually shows up in LESS than 10 days but PLEASE ALLOW 2-3 WEEKS FOR DELIVERY INTERNATIONAL BUYERS: Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. I DO NOT WORK ON WEEKENDS. IF YOU PURCHASE AN ITEM LATE ON FRIDAY THROUGH SUNDAY AND YOU EMAIL ME YOU MAY NOT RECEIVE AN ANSWER UNTIL MONDAY. I have all my items in stock when I list them and do not drop ship from anyone.