The thomann Achat 118 sub has far exceeded my expectations, we plugged it up on arrive and it blow are minds
We now have 4 and to tops and can happy use it on gigs were we would need 4 double 18s normal, there very tight and punchy as well and you can feel it all the way at front of house,
wheels and covers are a must as the handles aren't great and the paint comes off really easy with a bump or to.
Also they need a lot of power to really feel there noise
All in all a great buy, would add more if they were rider friendly