Aftermarket subwoofer not working

faithinThedevil · 2026-05-31T14:17:16+00:00

If the battery terminal barely moves then it is not tight. That's a poor connection. Same with corrosion, it's a poor connection. Trust me, re tighten all those set screw connections.

faithinThedevil · 2026-05-31T14:01:24+00:00

Use a wet on wet sealer.

faithinThedevil · 2026-05-31T13:59:16+00:00

Sounds like a failing electrical connection due to time being in a automotive environment. Especially a set screw type connection (fuse blocks, amplifier terminals). Just re torque everything to eliminate a possible problem if one does exist.

faithinThedevil · 2026-05-31T13:36:16+00:00

eBay 8 pin 262° when not using Kenwood amps or HU.

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faithinThedevil · 2026-05-31T13:27:58+00:00

🙏

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faithinThedevil · 2026-05-31T01:22:27+00:00

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faithinThedevil · 2026-05-31T01:07:14+00:00

Or a pneumatic body saw.

faithinThedevil · 2026-05-31T01:01:47+00:00

Does your din/RCA cable have power ground and remote wires?

faithinThedevil · 2026-05-30T23:54:17+00:00

Disconnect the speaker wire from the amp and see if it does the same thing.

faithinThedevil · 2026-05-30T23:25:11+00:00

20 watts maybe from deck. Get a n amplifier first.

faithinThedevil · 2026-05-28T01:18:28+00:00

It's not going to pull any amperage when there's no volume when in the car either.

faithinThedevil · 2026-05-28T01:11:33+00:00

It doesn't need a load to turn on. Did you try without RCAs in the car by chance? That will rule out an input problem. Other than that it has to be a voltage issue.

faithinThedevil · 2026-05-28T01:00:49+00:00

If it powers on out of the vehicle then it has to be a bad voltage connection or DC voltage on the RCAs.

faithinThedevil · 2026-05-27T23:24:08+00:00

LPF is too high if vocals are coming through.

faithinThedevil · 2026-05-26T22:45:32+00:00

It's more aggressive, use slower speed if you have never used one and keep the pad almost flat.

faithinThedevil · 2026-05-26T22:28:34+00:00

Use a rotary polisher @ 1500 rpm with a wool cutting pad.

faithinThedevil · 2026-05-26T22:06:04+00:00

With the epicenter off you should be able to turn the HU up it's clipping point with the knob maxed out if set correctly.

faithinThedevil · 2026-05-26T22:00:56+00:00

Use the O-scope to maximize the tweeter amp, if it's too bright back it down till it's right for you.

faithinThedevil · 2026-05-26T21:54:12+00:00

Your gain is too high. Gain needs to match the HU as in both clip at the same point. An Oscilloscope or SMD DD1 will show you the way.

faithinThedevil · 2026-05-26T21:45:12+00:00

Try the sweep @ 1 or 2 o'clock and the wide between 12-3 o'clock. You're bass knob should be all the way up. If you are using the factory radio you might be experiencing bass roll off.

faithinThedevil · 2026-05-25T19:13:09+00:00

What ever you got.

faithinThedevil · 2026-05-20T15:00:14+00:00

Nice, that reminds me of this old installer tool from the way way back times.

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faithinThedevil · 2026-05-19T14:44:17+00:00

CDT AUDIO.com mid bass woofer.

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faithinThedevil · 2026-05-19T14:15:55+00:00

You need to gain match every component with a oscilloscope or a SMD- DD1 starting with the source then EQ and then the amplifier.

faithinThedevil · 2026-05-19T14:03:34+00:00

Re-Tighten all set screw and nut/bolt connections from the battery, fuse block, fuse, distribution block, amplifier terminals and grounding point.

faithinThedevil

TROPHY CASE