Q. Do I need to 'Break-In' or 'Run-In' my new loudspeakers?
You don't really need to run in any loudspeakers, but we expect loudspeakers to sound a little better after approximately 72 hours of use.
Normally 72 hours of use, not necessarily continuous, but
should be at quite a high (realistic listening) level.
You can play whatever audio material you like to 'Break-In' or 'Run-In' loudspeakers, as long as the amplifier is not over-driven and clipping.
One way of avoiding disturbing the household, or neighbours, is to place the loudspeakers face to face and wire one loudspeaker out of phase (swap the + and - around). This greatly reduces
the sound level and is a double check that the phasing is correct in the
first place.