Break in is important but only in the first few hours; if you don't like the speakers after a day or two, send it back. I purposely tried to gauge this when I bought Special 40s. Significant change in the first minutes, then slightly improvements to the 5th hour, then very little to the 15th hour (which btw is the break in time for BWs according to their manual), then next to nothing in the 50th, 100th, 200th playing hours.
In your case though, it might be more of your preference of the BW house sound which makes the contour less impressive; haven't heard the matrix but the more modern BWs are slightly boosted up top and below, while the Dyns are dull flat. Do try to see if you can like the Dyn sound as they should be more detailed, albeit less exciting.
In your case though, it might be more of your preference of the BW house sound which makes the contour less impressive; haven't heard the matrix but the more modern BWs are slightly boosted up top and below, while the Dyns are dull flat. Do try to see if you can like the Dyn sound as they should be more detailed, albeit less exciting.