Infinity PS-10 Subwoofer - Answered Questions & Fixed issues

Your amp needs to be repaired - several parts have gone bad - there is a guy on ebay who repairs this amp and upgrades it at the same time - cost is around 150.00 ;)

see if all your connections are good and play with the seting on your amp.

I'd guess the sub's amplifier is exhibiting wake-up instability. Most amps are smart enough to mute their outputs until things stabilize.

A brick-and-mortar tech needs to look at this.

Probably not, but you could make it into a passive subwoofer by disconencting its internal amp and powewring the driver directly by an external amp being fed by an LFE channel.

I did this with a problematic Klipsch SW.

If I were you I would start by replacing the biggest (Capacitors) value ones first. You could put an ohm meter on any to see if they charge up when you take them out of the circuit.

Open it up and see what is in there! You might find a fuse blown. It might have just blown, without a fault, if you are lucky. If not check out the part numbers on the amp board. All semiconductors numbers, then put the numbers into google. You will soon find out if they are obtainable!

i'm having a similar problem. and think it is due to overheating. you can when the amp panel is removed there is no way for air to escape.
the amp panel is a large piece of plastic with a black sticker over it. from the inside you can see 2 oval shaped holes just above the amp unit. try cutting the sticker portion away. (careful to power down the unit first!)

Hello,
Unfortunately your subwoofers amplifier circuitry will need to be repaired ,the amplifier is bad and kicking in to protect mode. This mode is designed for safety of the unit and user and sub should not be operated until repaired as it may incur more damage to the components. I hope this helps.

If you have to hook up other speakers through the sub, then it also amplifies the signals for the other speakers too. You can purchase an new amp for your sub here.

http://www.parts-express.com/speaker-building.cfm

Try hooking up a different signal input to your powered sub, another stereo or even a dvd players audio output to the sub will work for a test. Just make sure the subs gain is down before starting. If it still not producing sound, the subwoofers amplifier is bad. I hope this helps.

Fixed the problem...I just purchased another one online (from a store that has a good return problem) and will return the one that doesn't work! Cheers! :)

The hum can be from the power supply not properly filtering, and or the output stage also has a short.

There is the chance that the speaker driver coil is now burned, or the power supply is now dead. If ther output stage is shorted and was putting DC on to the speaker cone, this will burn it very easily.

You should sent the unit out and have it serviced, unless you are properly trained, have the service and engineering manuals, and the test equipment to follow up on a proper repair and calibration.

Jerry G.

I think the electronics have a 3 years warranty and the drivers have a five years warranty for this product, maybe you can have it replaced. Maybe the auto on/off signal detector is the culprit.

Unlikely, but open it up and take a look. Some help here.

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Take it out and get it repaired. Or you can swap for one from a breakers yard. https://www.google.com/search?q=2004+kia+amanti+radio+replacement ..

Possible shorted speaker wiring or a shorted voice coil in one of the speakers.

Have you connected it to another amp to confirm its the sub not working?

The loud humming is the sound of AC mains - clearly your amplifier is receiving an input from somewhere and possibly into the front end. The hum could be induced by radiated energy from nearby unshielded equipment, it could be the result of an accidental hum-loop or could be because the amplifier power supply has a fault. It is usual practice with amplifier construction to ensure unused inputs are shorted to ground by switching or by additional contacts and wiring at the input sockets. High gain high impedance inputs can cause a great deal of unwanted noise if they are not shorted. I suggest you read the instruction manual and perhaps Google a few hints and tips about amplifiers and stuff.

There is a photo of the amp board here: http://badcaps.net/forum/album.php?albumid=40&pictureid=102 You need to remove the plate amp from the speaker (be sure it's unplugged!) and you'll see the fuse. Replace with exactly the same thing--don't go up in amperage. BUT... if it blew a fuse something is wrong. Those amps do have a tendency to over-heat but if the new fuse blows you should have the amp serviced. Or junk it.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Search the site by type in the brand name to your device, in the "Search box at the top right of the display window" to get gathered related posts.