Hookup instrutions for a velodyne sub/amp serial number 63311523

use youtube and go specific by your model.learn how to take it apart and put it back together.

Also go to crutch field for wiring harness and live support they are great!


Crutchfield Car Stereo Speakers Home Theater Pro Audio 4k TV

Some radios on newer radios have RCA plugs tucked up in the wire harness to easily connect a sub amp. The sub amp you select will have the necessary instructions for hookup

dose the sub woofer hooked up to the t.v.

Hello.... I am sorry to hear you are having problems. The reason for this is that since you have a stock stereo, the shop (or person) whom installed the amp and subs used a line out converter. What this part does is allows the connection of RCA cables to the factory head unit. Almost all bass signals are always in stereo, so since you were only hooking an amplifier for just subs, you can actually just connect to just one of the rear speakers instead of connecting to the right and left. Just makes the install a little quicker. There is nothing wrong with this as I usually do the same thing in our shop. However, if you are going to be using the balance control, then you will need to go back to the shop and have them hook the converter up in stereo (to both rear speakers). Hope this helps!

20 year car audio/video installer
Bay manager

The problem is in the amplifier section.

This sub uses the same amp the HGS units have. The pre-amp is a lot like the HGS units as well.

The only place you will find to service the unit will be Velodyne.

My guess is that you will need to send the amp section to them.
It is easy to remove, just make sure to mark the speaker leads before you remove them.

For the auto on function.

You may have a low signal to the sub.

If your source has adjustments for the sub output, try setting it up a number or two. Then use the volume control on the subs amp to mach your main speaker volume.

The volume control pot can be replaced.

Any good quality audio shop or electronics repair shop should be able to fix this.

You did not give the model number

Make sure you have a space around the unit for air flow to the heat sinks.

The amp IC may be going bad. Overheating problems can be hard to pinpoint.


Contact Velodyne for service.

Contact Velodyne.

Should have been a sheet in the box with amp for this

I regret to inform you that it sounds like the velodyne's internal amp has a problem and will likely require servicing.

Look for the sub pre out on the back of your amp and connect a sub cable to this and next to the LFE or phono type input on the back of the sub ,if it has two inputs left and right pick the left side ,set the cross over to suit your system and speakers,if you are not sure set the cross over to 80 hertz,this is a thx standard.
hope this helps.
CABLE GUY.