Paradigm PS 1200 sub won't pass sound and only hums? Anything I can do?

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PS-1200 Specifications
Design
Single driver, DCBS™ system with high velocity resistive ports and built-in amplifier Amplifier High current, hybrid output, 130 watts RMS
Amplifier Features Powersaver auto-on/off, soft clipping, thermal protection Low Pass Filter Frequency Variable 50Hz-150Hz Low Frequency Driver 310 mm, carbon-fiber-reinforced composite cone, Apical™ former Low Frequency Extension 23 Hz (DIN) Sub / Sat Phase Alignment 0 - 180 Finishes Black Ash Inputs From A/V receiver/processor or Paradigm X-Series Control Unit or preamp left/right output; From receiver/amplifier speaker terminals or main/satellite speaker terminals Weight 68 lbs. (31 kg) Dimensions HxWxD 19.75" × 17" × 21"
(50cm × 43cm × 53cm)
Specifications are subject to change without notice.

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The amplifier that powers the sub is the source of your problems. Sounds like some power supply filter capacitors are failing.

Hi Ruben, the value of R90 and R91 are 180ohm
Cheers
Joe

Probably a blown fuse. If there's not one on the face of the amp, pull the amp and check for one next to the power cable.

Disconnect the power, pull the amplifier out by undoing the screws that hold it in.
When you pull it out, look closely towards the top there is a little 1.8A fuse. It probably has blown.
Replace that and you should be back in business.

There's no way of telling really! Even if something did go wrong there's no reason to say it couldn't be fixed very cheaply. It could last another 10 years or it could go wrong in the next few hours.
I will say one thing after 12 years of service and never off you certainly have had your monies worth!

Don't bother. A subwoofer will only reproduce the rumble (deep bass) end of the spectrum. You would still need other (full range) speakers for the rest of the frequencies.

But, if you must - get an adapter to convert the Ipod's headphone output to an RCA pair and jack it into the sub's inputs.

try out dainty speaker

It turns out its most likely one of the resistors on the PCB on the amplifier plate.

My uncle has had the same problem and managed to replace the resistor and its working as normal now.

I have PS-1000 and same problem. It looks like power transformer got partially shot (reads 11 V AC instead of 56)
I just don't know if it's all the problem or there is something else. And where I can find replacement transformer?