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Questions & Answers
I have connected the subwoofer to the pre-amp out
One of two things may be going on.
The amp has a fuse mounted on the PC board. The fuse may be blown.
The speaker may be bad. that may have blown the fuse.
You can test the speaker with a "D" battery.
Take the amp section out of the back, disconnect the speaker leads.
Touch the speaker leads to the poles of the battery. it should make a little thump and the cone should move freely.
Contact Velodyne for service.
on May 15, 2016
My subwoofer keeps poping and then stops working
Sounds like you blew the speaker! The amp is sensing the voice coil is connecting to the speakers magnet or iron core and is going into a safe mode. It is possible to blow the coil even when the sub has a built in amp.
First make sure that you have the gains properly set ans not all set to their maximums. Second, disconnect signal to the sub then unplug the power for a few minutes. Third, plug the sub into a source of power on a different circuit using a surge protector.
Does the speaker make any popping at the time it powers up? If so you have a amp problem. If there is no sound produced, connect it back the the system using a different signal cable. Does the speaker now pop again when sound is produced. If so the speaker has failed. Contact a Velodyne repair facility.
on Aug 13, 2010
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