THIS IS FOR AN OLDER KLH SUBWOOFER WITH AN INTERNAL CROSSOVER THAT IS IN VERY GOOD WORKING CONDITION.  HOOK THIS SUB BOX UP TO THE 2 SPEAKER OUTPUTS FROM YOUR RECEIVER & YOU CAN HOOK UP 2 SMALL  SPEAKERS TO THE OUTPUT OF THIS SUB. RATED AT 8 OHMS & THE CROSSOVER POINT IS APX. 200 HZ. POWER RATED AT APX. 70 WATTS PER CHANNEL. IT HAS 2  5 1/4" WOOFERS. IT HAS SOME MISSING SCREWS ON THE BOTTOM. A FEW BAD PLACES ON CORNERS. ALL ITEMS ARE SOLD AS/IS, NO REFUND/NO EXCHANGE SO MAKE SURE THIS IS WHAT YOU NEED OR WANT BEFORE YOU BUY. SHIPPING IS FOR LOWER 48 STATES ONLY. PAYPAL IS ACCEPTED ONLY & WILL ONLY BE SENT TO CONFIRMED ADDRESS ONLY. PAYMENT TO BE MADE WITHIN 2 DAYS & ITEM WILL BE SHIPPED WITHIN 2 DAYS NOT COUNTING HOLIDAYS & WEEKENDS