+/- Bought there two months to realize a sub bass, cheap, simple, good power, not fat and especially not heavy (back problem ...), hp 21 "very light / 1500w / rms / 8ohm / 98 db. really inexpensive +/- 360 euro in PROSL (Belgium) mounted in a cabinet sub / frequency used (+/- 35 hz to 80 hz) manufactured it myself on a map b / c (with some mod) (cash resembling a cube / direct radiation / event to the four corners / ctp in 15 minutes (slight) with lots of internal reinforcements (stiffness), amplified by a single amp behringer ep 4000 mode bridg, place: +/- 600 euro (without amplifier) ​​(wood glue screw handles grids ...) you have a good sub (slight) that fonctione well.

SONORITS

At listening well

NOTICE GLOBAL

Yes