Well, I couldn't stand it any longer. My dealer agreeed to take back the B&W Nautilus HTM2 center channel speaker I bought last summer for an upgrade to the HTM1. Now Papa's got a brand new bag . Problem is, as most experienced owners of B&W Nautilus speakers will tell you, this speaker needs some break-in time before it really begins to sing sweetly. The 804s and HTM2 I bought were floor models, so these were already broken in when I got them. The new HTM1 is right out of the box and the tonal variation between it and the 804s is rrather pronounced right now despite the fact that the driver complement is exactly the same. I'm looking for suggestions for breaking in the new speaker, preferrably in the shortest possible time. For instance, does a particular type of program material "loosen" the drivers faster? Does the volume neeed to be high? Would setting the speaker size in the receiver to "large" work on the woofers faster? I plan on running the system while I'm at work each day for a while, but how long would some of you that own these speakers suggest I do this? BTW, this is one beautiful speaker. I ordered the dark red cherry finish to match my 804s. I'm not usually one to get worked up over gear, but damn these things look good. Even my wife is pleased .