I've had Accord 310's since about 1978. Nice and heavy. They compared well in the frat house to anything their size. I bought them at an indianapolis stereo speciality store. I went to get some infinity's but these had a more fulfilling mid-bass. Mine 25" tall, 15" wide, and 12 1/2" deep. They have a 10" woofer, a 4" midrange, and a 5"x2" horn. Has a passive radiator on the backside. High and mids are adjustable on front. Nice clear midrange. A punchy bass that is tight but lacks a just little on the deep end. Sound to me much like a slightly smaller JBL 100. I don't recall the watt rating but originally used them with a Sanyo 55 watt receiver. They've been hooked to a one hundred watt Technic's for a long time. I've blown a lot of speakers over the years. These little babies have never missed a beat. My cat destroyed the radiators and I've found a perfect replacement with a 12" Infinity/ESS piece. They've always been impressive to anyone who's ever heard them in an average room. Now they sit in a 15x 20 room with 12' ceilings so I thought about finally upgrading them. But honestly I think they still sound great. So I've decided to just add a nice powered sub to handle the low end.