Question about Rockford Fosgate Punch 401S Car Audio Amplifier

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I have 2 punch amps in my classic car Iwould like to know should I have a red light lite on amp? Ihave power on amp no sound I also have EQ BEFORE AMPS could that be the problem .car has been sitting in storage for about 5 years dont have any info on amps or eq system bought with car in 90s

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The red indicator indicates that the amp is inoperable, check the power to the amp and make sure it is at least 12 volts, check the ground connections for excessive resistance, no more than 3 ohms, disconnect the speaker from the amplifier and see if the red light goes out, if so check speaker wiring for shorts to ground, if the red light comes on only when the speaker is connected and the wiring checks out then the voice coil of the speaker may be shorted, if all the tests above prove ok then the Amp is defective and as a shorted output circuit, contact this web link for more help getting the amp fixed or replaced


http://www.crutchfield.com/App/Support/ProductSupport.aspx

Posted on Oct 05, 2009

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Need to connect a jet sound graphic equalizer JS-234 to a car stereo. The wires had folded stickers and some a gone. The colors of wires are red,black,gray,green.Only have 2 front speakers .


If it's only 4 wires, Red & black are typically power. red +12volts & black is ground. Gray would be one channel say right side and green would be left (example) you would ground the negative speaker lead on both sides. That is probably an old unit and make sure your car is negative ground. Some Ford & Nissan are positive grounded for some circuits which you may need to reverse the power connections. Make sure there is an in line fuse on the power wire just in case.

Feb 14, 2016 | Cars & Trucks

1 Answer

MY PUNCH IS IN THE TRUNK OF G35 INFINITI WHEN I TURN CAR OFF THE AMP IS STILL RUNNING AND DRAINING MY BATTERY I SEE A RED LIGHT ON THE AMP WHILE POWER IS OFF IN CAR


Most amps have a remote on terminal, which takes a small current wire to "turn on" the amp, and when you stop current to that terminal, it turns off the amp. It sounds like this current is still live when you turn the car off, so your amp doesn't know to turn off.

With the car off, test the lead at the remote on terminal (usually blue wire, as I do it) with a dc meter or test probe. If it reads +12v, it shouldn't. Find a new "remote on" power lead. This is generally provided by the "power antenna on" lead out of the deck. Run a wire to the amp from the power antenna on lead, and retest.

I'll bet on success after this.

Bruce

May 05, 2011 | Rockford Fosgate Punch 200a4 Car Audio...

2 Answers

Amp worked fine one day and the next day i get nothing. the red light on the side is on but i dont get any sound. i took the subs that were wired on that amp and wired them on the other punch 800 i have...


did you check all fuses on amp and coming from battery power wire? also check the ground and rca cables connecting to the unit and make sure the remote wire (small blue wire) didnt come lose thats usualy a sign for the red light

Mar 26, 2011 | Rockford Fosgate Punch 800a2 Car Audio...

1 Answer

Conecting my equalizer to amp'


What kind of EQ?

Typically you would place an EQ or any processor in a Tape Loop:

Tape Rec/Out to EQ In; EQ Out to Tape Play/In on the amp. Select Tape Monitor on the amp to place the EQ in-line with whatever source you're playing. Use it's ability to modify the sound sparingly.

Feb 23, 2010 | Audio Players & Recorders

1 Answer

Power lite is on and protect lite bot no power to subs


UNPLUG SPEAKERS OFF THE AMP
TURN ON AMP IF THIS STILL HAPPEN UNPLUG RCA AND DO SAME TEST IF SAME THING HAPPEN WITH RCA AND SPEAKER UNPLUG AMP HAVE A PROBLEM MY FRIEND

Aug 06, 2009 | Rockford Fosgate Punch 401S Car Audio...

3 Answers

Red thermal light on


well id say you have cooked your amp and or subs they can only take beatings for so long. show it no mercy it gives it back,does amp smell do subs smell borrow amp see if subs are ok if so it will be your amp.new one .keep the gain down??

Jun 11, 2009 | Rockford Fosgate Punch P550.2 2-Channel...

3 Answers

401s Rockford Fosgate Amp. Not powering on,just protect lite is on.


try hooking the remote wire to a rem wire on the back of stereo. post and let me know results

May 30, 2009 | Rockford Fosgate Punch 401S Car Audio...

1 Answer

Alpine eq 3331 install


USE THE FOR CH RUN ALL THE SPEAKER THE MEANS TWO RCA ONE FOR FRONT AND ONE FOR REAR INTO THE AMP AND NON-FADE REAR-FOR YOUR SUB --POWER FOR EQ--[POWER 'REMOTE AND GROUND]

Mar 26, 2009 | Alpine ERE-G180 11-Band Car Equalizer

1 Answer

Something Wrong With my Fosgate 500-a2 Amp


Is the amp being fed directly from the head unit's RCA preamp outputs or is it being fed by another amp's preamp outputs? Try temporarily wiring up a speaker you know is good in place of the sub and see if anything changes.

Apr 01, 2008 | Rockford Fosgate Punch 500a2 Car Audio...

1 Answer

Absence of sound


If you have another amp in the vehicle, swap the RCAs and speakers to see if you get sound through the other amp.

Generally, if the red light is on and there is no significant DC on the speaker terminals, the amp is in good working order (for the older Rockford amps).

Jan 15, 2008 | Rockford Fosgate Punch 500a2 Car Audio...

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