Question about Soundstorm F850M Car Audio Amplifier

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What size fuse does the F850M amp use?

I replaced is with the 20amp fuse and I keep getting the protection light when the bass hits. Please help.
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Have you checked the ground

Posted on Nov 15, 2008

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Can anyone help


What size is the amp and how many watts is the speaker(s) you have it ran too? If your speakers are trying to pull too much power from the amp it will turn itself into protect mode to keep from blowing a fuse as well as if you are pushing to many watts into small small speakers it will do the same to protect from blowing the speakers I would recommend turning the settings on the amp down slightly and then trying it out also make sure your wires arnt crossed adjusting the setting as it plays is the easiest way to fix the problem also make sure the bass isn't all the way up on your head unit

Jul 12, 2013 | Car Amplifiers

1 Answer

Hey names Nathan and I just got a kicker ZX300.1 and a I connected it to my kicker comp 12 and an alpine cde 102. So the problem is that the protection light flashes with the beat of the bass at high...


Your speaker wires could be shorting to ground at the subs or at the amp. You could be experiencing a drop in voltage when the bass hits. Check your power connection at the battery, fuse and amp. Check your ground connection at the chassis connection and at the amp.

Aug 19, 2012 | Car Amplifiers

1 Answer

A4004T AUDIOBAHN HEARTBEAT FROM AMP WITH BLINKING POWER LIGHT BUT NO PROTECTION LIGHT. UNPLUG SPEAKERS NO PROBLEMS. TRIED NEW WIRES, NEWER BIGGER GROUND. SUPPLIED WITH 40AMP FUSE NEAR BATTERY AND 2 20AMP...


If you disconnet you speakers and there is no problem, Then it's your speakers.
1. try your speaker wire in one port at a time (may have blown one of the outputs)
2. Check the speaker connections directly on your speakers (not loose or damaged)
3. try a different speaker all together and see if you get sound etc.
4. try a different wire from your speakers to your amp (wire may have shorted out or have breaks)

Hope this helps and please rate. If you require further info please comment and I'll get back to you asap

Mar 19, 2011 | AudioBahn A4004T Car Audio Amplifier

1 Answer

I need to know the size of external fuses for a american legacy amp 2000 watt 2 channel 1990


25 to 30 amp fuses will work great, anything lower could possibly blow a fuse when a good bass note hits even if there is nothing wrong with the amp. Hope this helps.

Jul 09, 2010 | Legacy - American II: 2 Channel 2000W...

1 Answer

Protect led flashing with hit of bass


Try a bigger amp. This one wants to be turned down. But seriously the protect can act like sort of a clipping device when the unit is trying to amplify out of a certain range. The transistors may be getting weak and need to be replaced. That said I would move this amp to the midrange or the highs and get a little bigger amp for you low low's. Hope that helps.

May 08, 2010 | Blaupunkt GTA 260 2 Channel Amplifier 400...

2 Answers

Amp cutting out when bass hits


With an amp like that you can not pull enough power from you cars battery alone. That is why when it hits hard it drains the amps from your battery and you amplifier cuts out. The light on the amplifier most likely dims when the bass hits. You need to get a capacitor. They are easy to hook up on the main power wire. You can get one from http://phatcaraudio.com/capacitors.html or get a used one off ebay.com. Good luck

Jul 01, 2009 | Alphasonik PMA1000D Car Audio Amplifier

1 Answer

Green light turns red on hard notes with kicker 750 mono amp


First off, never, ever replace a blown fuse with a bigger one (especially one that is almost twice as big) unless it's an absolute emergency. Most of the time, the reason a fuse blows is because of a problem with the device (in this case, the amp). By installing a larger fuse, there's a very good chance the problem will become permanent (i.e. busted amp).

The amp could be going into an overcurrent mode when the bass hits and power cycling itself to try and reset the problem. If this is the case, take it to a local electronics repair shop and see what they can do.

It's also possible the input voltage to the amp is dropping too low during the bass hit, making the amp restart. Try putting a 1.0F or higher capacitor on the battery to buffer the power during the bass hits.

Mar 16, 2009 | Kicker (ZX750.1) Car Audio Amplifier

1 Answer

Protect light flashing on and off, sub cuts in and out


there is a wire crossed somewhere in the system or the sub is damaged how old is the amp

Dec 01, 2008 | PPI DCX-600.4 Car Audio Amplifier

1 Answer

Kenwood KAC-9152D Car Audio amp


There could be several problems. The following page should help you determine if you have a problem with the amp or something connected to the amp.

Amplifier in Protection Mode - Troubleshooting

Let me know if you have any other questions.

Sep 17, 2008 | Kenwood KAC-9152D Car Audio Amplifier

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