Polk recommends 20-30 hrs of break-in on a new MM series subwoofer. This would take me about a month with my current driving habits.
UNLESS.... I hooked my sub box up to my home system and let is run all day. Now the home amp is built for 8 ohm speakers. I could re-wire my two 8-ohm home stereo speakers in parallel and then connect those in series with my 4 ohm polk subwoofer box and that would make an 8 ohm load for the home amp.
Then I could let music play for long periods at moderate volume levels.
Has anyone tried this? I can see nothing wrong with the idea unless perhaps the break-in 20-30 hour break-in period shouldn't be for continuous time for some reason.