Just built my first OB speakers (see my ZOB post), and I'm considering a pair of 15" H-frames to augment them (since I've read nothing but positive things about them. But I'm concerned whether I have enough space in my listening room for both the ZOB's and H-frames. I'm sure this info is in a thread somewhere, but I haven't come across it yet. Can someone tell me how much space is recommended behind the H-frame baffle? And can they be fairly tight to a side wall (the cabinet side, that is)?
