Rear Center speaker to go with AR HC6

I'm new here, and looking for a little advice. I'm putting together a first HT system. I've got an Onkyo TX-SR601 receiver and a set of AR-HC6 speakers. The receiver is 6.1 and the speakers are 5.1, so I'm looking for a rear center speaker. Unfortunately, I can't find anything on the web for Acoustic Research so I don't know how to get a recommendation as which speaker I should buy (I'd like to stick with AR for the whole system).

Any suggestions?

Thanks,
Mark

Welcome Mark,

Here's a link with contact info for AR on the bottom. I don't know if the phone number works, but the link isn't working for me. Good luck.

http://webcenter.soundandvision.nets...,aid,61,00.asp