Paradigm PDR-10 Sub Box

Depends when it makes these crackling noises.

If it's when the sub isn't being driven, then it could be the amp. (Check for bulging capacitors on the amp board). If it's when you move cables about then it could be a broken lead or a dry solder joint on one of the inputs.

If the crackling is when the sub is running then it might be the voice coil has distorted due to being overdriven with a poor and highly distorted signal.

indicates wind turbulence noise
possible around rear view mirrors , weather shields , door edge , bonnet edge , headlights
trial and error is to place tape over adjoining edges to see where a placed tape stops the noise

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PDR-8 Specifications
Design
Single driver, bass reflex system with critically tuned resistive port and built-in amplifier Amplifier High-current, discrete output, 90 watts RMS
Amplifier Features Soft clipping, thermal protection Frequency Response On-Axis 29Hz - 150Hz Low Frequency Driver 210mm (8 in) extended travel with 38mm (1-1/2 in) voice-coil, aluminum former Low Frequency Extension 29 Hz (DIN) Finishes Black Ash, Light Cherry, Dark Cherry Inputs From A/V receiver/processor or Paradigm X-Series Subwoofer Control Unit mono-sub out or preamp left/right output;From receiver/amplifier speaker terminals or main/satellite speaker terminals Weight 25 lbs. (11 kg) Dimensions HxWxD 13.25" × 9.75" × 15"
(34cm × 25cm × 38cm)
Specifications are subject to change without notice.

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© 2016 Paradigm Electronics Inc. Conditions of Use Privacy Policy Unauthorized Dealers WARNINGSouth Africa

Do you have the brakes taken apart once a year,
on all your vehicles, for rust removal,inspection,
needed work & lubing,that is required
Have to flush brake fluid every 2 years, if you
don't want moisture in the system ruining it
Don't know what the noise is,work on the
brakes & then get back to the noise, if it's
still there

I have exactly the same situation with my PDR-10. Paradigm techs were of no help, don't me to take it to a service centre which i did. Of course when it was there they plugged it in and it stayed on for a day and a half so no problem right? Get it home, nothing, plugged and replugged, got it on once but not for long. Opened up back, everything including fuse looks solid and fine....to naked eye anyhow.

There may be a small hole or cut in a vacum line or possibly just loose. Also make sure the air filter box and the big hose to it are secure and clamps etc are tight. Pulleys and belts can make a high pitch sound also.

There is a chance that your wiring is producing this problem. Manufacturers don't always make equipment that is compatible with each other. The biggest problem's are "ground loops". Radio Shack has a non-electrical device that separates the common ground from all equipment. You basically connect it between your amp out's and in's - cables included. It is possible that other manufactures also make and sell this device too. It's main "Google" name would most likely be - "Ground Loop Isolators". If you are using the actually speaker outputs into your subwoofer amp input(s), check your polarity wiring again. Good luck with your system - it sounds like it'll rock when it's all setup correctly.

Yes it can be.You can check it with ohmmeter the impedance should be 4 or 8 ohms.But if you can disassembly the sub its better then you can see and check everything.My guess is that one of the cables on the speakers connector is broken and its just touching the conntact.

The indicator light needs to be replaced, there is a loose or poorly soldered connection on one of the led's leads, or the circuit providing the signal (voltage) for the light isn't functioning.