There's much to admire in this amazingly small movie subwoofer
It may be sizeable, but the Impact-10 lacks much needed control compared to rivals in the same class
Velodyne's Impact-12 is good enough to earn five stars and is ideal for many buyers
Forceful low frequencies at any volume level, but hamstrung rather by vague timing
The SPL-1500R isn’t small or cheap, but it is very good