Question about Rockford Fosgate T10001BD- Car Audio 500watts Mono Power Amplifier Car Audio Amplifier

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Rockford T10001bd: Capacitor buzzing

The capacitor in the amplifier is giving a high pitched buzzing sqealing sound when power is applied to the amplifier. its the second smaller capacitors from the biggest ones, they are the ones bunched together, there are about 4 but only one is doing it, it also has a bump on the top like it is about to pop. the amplifier doesn't turn on, it only sqeals. does anyone have any ideas.... it would really help.. thanks

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Re: Rockford T10001bd: Capacitor buzzing

If the top is split open, it has vented electrolyte. This is most commonly caused by more serious problems in an amp. Do the other adjacent caps show any signs of damage?

Is it blowing fuses? Connect a 20 amp fuse in-line with the B+ line of the amp. If it blows the fuse, the amp is drawing excessive current and most likely has more serious damage than the single vented cap.

Posted on Dec 04, 2007

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Re: Rockford T10001bd: Capacitor buzzing

My amp has this same problem... Did you order the parts yourself and replace them or send it in for a repair?

Posted on Sep 04, 2009

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Audio cutting in and out protect light turning on Rockford fosgate p4004

Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Your amp is clipping. Try adding a capa A thumbs up would be greatly appreciated if this answer is helpful to you. audio-cutting-in-out-protect-light-peeu4x5nsxvd53n2rwetiqa4-3-0.jpg

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Hi..i would like to buy the Rockford Fosgate T10001bd parts .modle no' TO-247 75344G.Where can i buy please

Hi there are numerous places to buy parts for Rockford Fosgate amps. You can go directly to the support section at or there main repair center is landis tech in North Carolina. Or you can try Freemans car sterio Charlotte, NC
6500 E. Independence Blvd.
Charlotte, NC 28212
704.531.0550 ask for Jay in parts service. Thank you for using

Feb 07, 2010 | Rockford Fosgate T10001BD- Car Audio...

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Where is thermistor located on a rockfordfosgate power T10001BD car audio amplifier 2006 model cause it keeps putting my amp into thermal protect alot faster than before

I would not remove the thermistor as it is there for your own protection. Rather take the amplifier in and have it checked. It can be something as simple as a dry or loose joint. Removing the thermistor can result in a total burnout of the output or power supply stage. If not both. Cost are extremely high in repairing RF Amplifiers.

Aug 16, 2009 | Rockford Fosgate Car Amplifiers

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Amp makes loud noise, why?

Make sure its a good ground. Make sure your audio cables running from your radio are not running on the same side as your power cables running to your amp. Sometime that can cause alot of noise in the lines

Oct 12, 2008 | Rockford Fosgate T10001BD- Car Audio...

1 Answer

Amp clickin in and out

Had a similar problem, mine was a power problem.
Power meaning voltage.
Those big bass speakers draw lots of power. My original alternator couldn't keep up.

Question: Do your headlights dim in rhythm to the bass hits?

If so, your sound system wants more power than your vehicle is producing.

My first solution was a high output alternator. It worked great.

Then I added another amp. Not great anymore.

My second solution was to tie in a large capacitor to the amps power supply. (These a big (1 farad), about the size of a Pringles can)

Your amps power consumption is not uniform. Each time your amp punches the bass, it draws extra power. If that power isn't available, it starves and shuts down (if only for a second) then restarts.

The higher the gain, especially using a low pass filter, the more power needed for each thump. Thats why when you turn the bass down, you can get higher volume from the rest of the system.

How a capacitor can help (simply put):
In this application, the capacitor acts like an auxiliary battery, smoothing out power fluxuations. The capacitor builds up its charge literally between bass hits when power demand is low. Then releases it's charge when the demand is high. Think of it as an on-demand power boost.

Hope this helped


Jul 10, 2008 | Rockford Fosgate P3001 Car Audio Amplifier

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Rockford 1 farad capacitor

The 1 farad capacitor is something added to current hungry systems to help keep the supply voltage at the proper operating level.
If your amp does not work after putting one in your system, but it worked before you put it in, you most likely have it installed wrong.
The capacitor should be put in parallel with the main +B voltage of the amplifier. That means you would connect the positive side of the capacitor to the +B voltage supply of the amplifier and the negative side of the capacitor would go to the chassis ground.

If you have it connected in series, or inline with the +B voltage supply, the capacitor would be blocking the voltage to the amplifier.

Without more information on your problem that is the best answer I can give you.
If this does not help, please supply more information and I will be happy to help you further.

Jun 18, 2008 | Rockford Fosgate Car Amplifiers

1 Answer


The T10001 can drive a load lower than 4 ohms. Wire the coils of the individual speakers in series to make each speaker 8 ohms. Then wire all 3 speakers in parallel and connect them to the amp. This will give you a 2.6 ohm load.

Dec 01, 2007 | Rockford Fosgate T10001BD- Car Audio...

1 Answer

Need help

Hello koty,


That sounds like you may have a problem with a bad solder joint on one of your switching transformer connections. If you have a soldering iron and some solder, you should resolder the transformer connections. Also check the whole board for bad solder joints. If this does not work there might be a chance that one of your capacitors has gone bad due to aging. You will need an oscilloscope and a schematic to measure the voltages on the capacitors to make sure that they are within the recommended ripple voltage range (open capacitors loose their ability to filter so the ripple voltage increases and this causes instability in the DC voltage level). However the fact that when you apply mechanical pressure the problem abates, this is pointing towards a bad solder connection.


I hope this helps,

Thank You,


Apr 28, 2007 | Rockford Fosgate Power 1500.1BD Car Audio...

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When amp powers up it makes a buzzing noise-quite loud-

Probably a loose coil or bad ground in the amp itself. Contact, ask for Jason, he can help you and is the best out there. The problem you're having is extremely tricky to rectify, I had an amp with the same problem at it stumped multiple techs, some that had been in the business 35 years, yet Jason got it solved.

Sep 20, 2006 | Rockford Fosgate T10001BD- Car Audio...

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