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Will a 10000 uf 80vdc capacitor replace a 5600uf 80vdc capacitor in a sub-woofer power amp?

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No. You can use a higher voltage rating, but the capacitance needs to remain the same.

Posted on Feb 25, 2011


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Makes a loud humming noise when plugged in, even when it is not conncted t the AVR

Humming noise could be an indicator of bad capacitors in the amplifier. You can take the amp out, pull the cover off, and look at the capacitors. If they appear to be swollen at the top, with some brown ooze coming out of them, then they need to be replaced. You can actually do this yourself from radio shack parts, just get the proper sized voltage and uf capacitors, desolder the old ones, and solder the new ones back in.

I have to do this every 5 years, or so, to my old MTX home sub amp.

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My sub woofer making noise like machine gun w out connect toamp

Disconnect the sub-woofer and see if the noise stops, if so the amplifier is OSCILLATING and so produces the noise.This can be related to fault with the pre-amp or audio processing section. Try and heat up the circuit using a hair dryer and if the fault clears then there are faulty electronic capacitors. If leak is seen then the pcb must be washed after the capacitor is replaced which can solve the issue.

Mar 12, 2012 | Infinity BU-120 Subwoofer

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I have the velodyne DLS4000R and it keeps popping at high volumes ??

Popping ????? if popping sounds mechanical: chek for speaker blowned (replace or repair speaker)
if popping sounds electronic: chek circuitry.

Apr 03, 2011 | Velodyne DLS4000R Subwoofer Speaker

1 Answer


Do you mean sub woofer. Then you can select any brands Active sub woofer ( active means built in amplifier) to connect with your system. They comes in different power (watts). you can use an active sub woofer with 100W output.
connect the sub woofer pre out of you amp to the pre input of sub woofer.

Feb 05, 2011 | Technics SA-EX500 Receiver

1 Answer

Which circuit is used in sub woofer

the circuit for sub woofer consists of a transistor in parellel to the capacitor to supply power and moreover other I.C's or transistors depending upon the size of the sub-woofer achintya1915.jpg

Dec 06, 2010 | Office Equipment & Supplies

1 Answer

Can I hook up a 1200Watt sub-woofer to a 1500watt amp?

Yes you can. Rule of thumb for sub and amp is that power should be balanced but the amp should have more power than the sub. You probably will need a capacitor for storing power and won't drain the car battery. For the future I would also look in to getting a bigger alternator and a separate battery.

Sep 20, 2010 | Car Audio & Video

1 Answer

How do I hook up a non powered sub woofer on my htr-5630?

You will need an amplifier or 2 channel receiver. Hook the sub out rca jack to the rca inputs on this new amp or receiver and hook the speaker terminals on sub to speaker terminals on same amp or receiver. Your Yamaha receiver doesn't have any power for a passive sub.Just pick up any old fairly high powered receiver for fifty dollars and you're good to go.I use old dolby pro logic receivers as they are a dime a dozen today. Good luck.

Feb 20, 2010 | Yamaha HTR-5630 Receiver

1 Answer

Car stereos

check the cvonnections to your sub woofer to nsure there all conected correctly

Mar 10, 2008 | Car Audio & Video

3 Answers

Jbl 12 subwoofer

Good chance it's the power supply; a capacitor there, the large one, may have gone. These things age and when they go, there's noisy power to the amp circuit and ... well, that may be what you're hearing. You should check your audio wiring, too. That woofer could be picking up a 60Hz hum from the AC mains and amplifying it. Maybe you can try another spkr on same cables and see if hum is in your woofer or elsewhere. Good luck.

Sep 10, 2007 | JBL PB10 Subwoofer

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