I found an old non-working Velodyne F Series Servo sub and and wonder if, after removing its internal amplifier, whether I can power the woofer in ints enclosure with an exterior sub amplifier that has both volume and crossover controls. This is the THIRD Velodyne sub that I've found and carried home to test. The speaker looks great - the speaker and amp only respond when the volume control is touched or turned - and then only for a second each time. I have yet to breach the cabinet to remove the amplifier... I assume I'll need to remove the speaker for access. AT now 71, this will be the last Velodyne I carry home!
Could be a dirty pot and cold solder joints causing the problem.
Assuming the woofer is undamaged, it can be powered with an exterior sub amplifier, but will loose any benefit the motional feedback servo control circuit provides.
Assuming the woofer is undamaged, it can be powered with an exterior sub amplifier, but will loose any benefit the motional feedback servo control circuit provides.
Woofer appears to be in great shape... I've heard he Servo circuit often goes. I'll give the controls few shots of Dioxit and try again. Thanks for the feedback.