I have 3 Super One XU's for sale. These are actually Outdoor Ones. After speaking with NHT, I found out that the only difference is a poly cone woofer and metal grills to make them weather resistant. The tweeters are the same, cabinets are the same and the have the same specs and sound. I have used these as rear surrounds and they have always been crossed over at 80hz and never overdriven. I will not break them up but I am selling at 3 for the price of 2. I do not have the original boxes or manuals but they come with wall mounting brackets and all the hardware. Contact me and we can work out the details on shipping, etc. $250.