What characteristics have motivated your choice? purchased a subwoofer already equipped
For what purpose? see sub bass
What amp / What configuration? Amp 1000w bridged torque ...

SOUNDS

The frequency curve is sufficiently neutral?
The stereo image is good?
The sound is clear and precise across the spectrum? Low Power yes, but then this is the catalytic
The dynamics are respected? ... It hits a little but no more

OVERALL OPINION

For how long have you been using it? Past three years
What is so special that you love most, the least? A low power, so good, its nice. but that is beyond the power of the HP is the same catamaran with a clean signal
Did you try many other models before getting this one? yes, the big brands ... (Jbl, rcf /...)
What is your opinion about the value for the price? just level
Knowing what you know now, would you make the same choice? ... No