Rythmik F12SE Direct Servo Subwoofer Review. **READ THE PINNED COMMENT** - YouTube
Double Trouble Kit (Single) | GR-Research
Velodyne DD10 10 Inch Servo Subwoofer Driver Only | eBay
Servo-Control in Mainstream Audio: From Motional Feedback to the Bend-Sensor | audioXpress
Servo Sealed Plus Kit (Single) | GR-Research
Truth, my life was changed after getting these subwoofers. Gr research open baffle servo sub with magnepan 1.6qr. (Also with the gr research crossover) seem less transition between them, unless you want