Question about Proficient S12 Subwoofer

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Proficient Subwoofer S12 - No Power

I notice while watching movies there was no bass. Did the speaker check and nothing. I did unplug the sub and plug into another outlet, just to make sure. Bottom line - No power. What is the checklist I can do to correct this problem or checklist to identify the problem? Thanks

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Re: Proficient Subwoofer S12 - No Power

Throw this sub out the door! I have one two years now and had to sink $250.00 in to it for repair just after the 1 yr. warranty ran out.And as I am writing this it is not working.My solution: Get a Velodyne dls5000r,I am : - )

Posted on Dec 09, 2007

Re: Proficient Subwoofer S12 - No Power

Check the fuse which tends to blow frequently.

Posted on May 24, 2007

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Power light on but no sound form proficient s12 subwoofer

The power supply is working but it is possible that there is no supply to the SUB WOOFER amplifier. It is important to remove and open the unit to probe and confirm.
It can be failure of the inline fusible due to a faulty output driver.
Finally check the subwoofer using a AA cell.

Oct 16, 2011 | Proficient S12 Subwoofer

1 Answer

No I cant get my sub woffer to work woofer.There is power to the unit .I am trying to connest it to a sound bar which has a sub out.

If there is power to the woofer then a signal input must power the woofer to work. So feed a test signal or a audio siignal from a DVD and if there is no output then the AMPLIFIER section had faults.
Unless the sealed unit is opened it cannot be tested to confirm if the output , the input to the AMP or the power supply has failed.
Check if there is power to the output section to confirm.

Jul 29, 2011 | Proficient S12 Subwoofer

1 Answer

Keeps blowing fuses x4 as soon as powered on

Pull the speaker and check the coil with a meter. Should read 8ohms. chances are you have a burnt voice coil. They have a 2 year warranty on subs.

Jan 09, 2011 | Proficient S12 Subwoofer

1 Answer

I unplugged my rca cables from micropro 4000 and it made a loud boom. Now it no longer puts out any bass. I pushed on the sub and it feels good. The sub powers on just no bass.

Open the case and check the resistance value of the actual speaker - should be around 8 ohms. If it doesn't get a reading, then it's bad.

Jan 01, 2011 | Polk Audio DSW MicroPRO 4000 Subwoofer...

1 Answer

PS8 Subwoofer started buzzing non-stop

with nothing connected and the sub turned on....Most subs buzz when the circuitry starts to fatigue. The last time I heard this ..the repair ended up being one of the two fat capacitors inside the sub. I have a means of testing this,,you may not. I am a repair shop with a bit of experience in component level board repair.

May 06, 2010 | Proficient S12 Subwoofer

1 Answer

My jamo sub 200 & pioneer vsx517 receiver is not working properly

What do you mean that it sometimes doesn't work? It doesn't power on automatically?
Check settings of your receiver - if it has subwoofer output enables and if low frequencies from all channels are directed also to the SUB. By default only the LFE channel (.1) of 5.1 signal input is fed to the subwoofer. So Sub will work in this case only when you listen to 5.1 signal (DVD movie for example), but for radio or stereo music, only front speakers are used. By configuring this bass redirect, you can use subwoofer for all signal types.

Feb 08, 2010 | Jamo SUB 200 Subwoofer

1 Answer

I have the same problem as described by Fufanuer. I have no power to S12 Subwoofer as it keeps blewing fuses. As I replace the fuse 4a 250V with new one it blew right away. Can anyone help? Hal

I too am looking for the solution, I'm hoping I have the wrong power cord which is sending too much power to the sub, my next attempt will be to just up the AMP on the fuse b.c hey it's broken anyway

Nov 20, 2009 | Proficient S12 Subwoofer

2 Answers

Klipsch ksw subwoofer wont power on

The power supply switching transistors are likely fried. Dangerous high voltages involved. I would remove the plate and send it to Klipsch for repair.

Jan 16, 2009 | Gem Sound SUB-650M Speaker

1 Answer


It is below the subwoofer A/C plug and you need to pull it out

Dec 18, 2008 | Proficient S12 Subwoofer

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