I used 2 HGS 18 subs with a rear ML descent sub. I used to play all 3 as loud as they could go. This was all the time for 2-3 years.NEVER had one issue. Not even a picture off the wall from other nearby rooms.
I can tell you a HGS 18 isnt strong enough to do damage. I run much better subs these days and still no issues.
I can tell you a HGS 18 isnt strong enough to do damage. I run much better subs these days and still no issues.