Ok, I know when to admit defeat. I very recently got a second Rel Storm to add to my system. I am using Boston THX Ultra 555x Speakers accross the front. The first problem is the Storm i recently added is a first generation with the old xlr connection, and it is a little slow and not as tight as my Storm, which although a mrk1 was originally intended for the US market and has line in phonos, and is much tighter in performance. My major problem is getting them to work well together, without being boomy. This is proving very difficult. I have them postitioned either side of the Centre, and between the main channels. I have experimented with one on a side wall, but I didn't like this approach. So I am looking for tips to try, and i have a bit of a headache!