Hello I recently got a pair of cornwalls 11 and thought about putting in some K -43 woofers 16 ohms I purchased about 2 1/2 years on ebay old stock new 16 ohms still in original boxes thought about putting them in K- Horns sitting in boxes still mounted to shippin plywood heavy beast dated 1962 or 1966 went to retrieve info in box on shelf which is 8 feet high LOL not happening to soon I put there don't know how I did it ** Klipsch Crazy Moment** LOL anyone with thoughts about cornwall 11 use or K- Horn use.