Question about Pioneer TS-W256C Car Subwoofer

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Amp turns off or goes to protected mode during long low base

On some songs with deep low base my amp will switch to protected and i will have to turn off my cd player and turn back on for it to start playing again. It doesnt do it on all songs, it does best on songs with short burst's of base Do you think i just need more power to my amp or is it the subs cant handle the base

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Let me take a stab at it There are two types of resistance... Static and dynamic. These resistance change depending on the position of the cone. Now im guessing the short bursts of bass are not small ones. If the cones are forced further than allowed the resistance of the combinded drivers may drop below the rated impediance for the amp...causing the amp to into protection to keep itself from over driving itself (the less reistance a amp sees the more power it will produce, till it essential blows itself up)

Posted on Mar 25, 2007


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MY soundstream LiL Wonder 4.620 is only going in protection mode

Disconnect all speakers Meter power, remote, ground at amp, if all is good move on, if not check main fuses
Turn amp on; If in protect mode then your amp is toast Turn amp on, if not in protect mode then start reconnecting speakers one by one until your amp goes into protect mode, then you'll know which speaker is bad.

Sep 19, 2011 | Car Audio & Video

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I have used the amp for a while running 4 speakers. the front are components, and 6x9 in the back. The amp worked great and was loud. The amp just stopped working one day when i turned it on. Turns on...

One of your speakers might have burned out, shorting the wires that connect it to the amp. Disconnect one speaker at a time from the amp, turn it on(try all four, turning the amp on and off each time you disconnect a speakers wires) and you can pinpoint which speaker might be causing the amp to go into protect mode. If you disconnect all the speakers and the amp still goes in protect mode, then the amp is shorted internally and will need to be replaced or repaired.

Sep 22, 2010 | Clarion APA450 Car Audio Amplifier

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My amp keeps going into some safe mode and red light blinks and stops base to my sub. I have it hooked up to 1 15.4 Orion HCCA.

The "safe mode" on your amp usually kicks in for two reasons - the ohm load on the sub is too low for the amp (presenting a "short" to the amp), or it's going into thermal protection because the amp is too hot. From your description, it sounds like there's a short in the wire, the sub's ohm load is too low, or the sub is partially blown.

If you have another sub or speaker, connect it to the amp's output and see if the amp still goes into protection mode. If the amp goes into protection with a known-good speaker, then there may be something wrong with the amp's power supplies. If the amp works properly with another speaker or sub, then I would check the sub that's causing it to short out.

You may also want to check whether or not the amp is over heating by just touching the amp when it goes into protection. If it's just warm, that should be ok - if it's hot, then it might be working too hard. In this case, you may need to check the input voltage (12-14VDC) and the size of the power and ground cables. If your ground isn't properly connected, it can cause weird problems like over heating, shorts, erratic behavior, etc...

Mar 04, 2010 | Orion HCCA-D5000 Car Audio Amplifier

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Amp Turns off after 30 seconds of song play.

Check your ground and make sure it is grounded to metal in your car with no paint. Also, make sure you are running 4 gauge power wire. Another possible cause could be that the ohm load is too low on the amp. Also, if your car battery drops below 10v it will send the amp into protection.

Apr 15, 2009 | Kenwood KAC-8103D Car Audio Amplifier

1 Answer

The amp turns on but goes to protection mode

Have you checked the REM wire, if it is the wiring may have gotten fried.

Or you may need to get new parts replaced within the amp.

Both issues happened to me.

Mar 27, 2009 | Car Audio & Video

1 Answer

My amp turns on and pumps once then it stops bt the amp is still geting power

First try unhooking the speakers and see if it continues to go into protect mode. If it does'nt then your speakers are running to low of ohms required for that amp causing it to go into protect mode. If it still goes into protect mode check your ground, might have a voltage problem and check voltage going into amp. I have read the manual and this amp has advanced circuit protection. So if all I have asked you to do and it still goes into protect mode then amp is faulty and has some output transistors shorted or power supply mosfets shorted. Let me know what you find. But you need to do what I have explained to narrow the problem down. Good luck, Keep me informed. I will be glad to help you thru this. I also have a business of repairing car amps and you will not find anyone cheeper. So if you want it repaired and you feel you can't do it, just send it to me and I will repair. If you decide this E-mail me and we can discuss it in more detail. Just a thought to try and help you out. I have many customers that send me there amps and I repair them and ship them back. A few come from this site. Let me know

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Kicker amo in my old vette

If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following.

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage drops below ~11 volts, you need to check the wiring feeding whichever line is dropping too low when the amp goes into protect.

If the voltage is OK, you need to check the speaker wiring and the speaker(s). Try it with a known good speaker if possible to see if the amp works normally.

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1 Answer

Amp went into protect, but front speakers sound distorted too

If the amp still goes into protect mode, the easiest thing to do is disconnect the RCA cables from the amp and see if still goes into protect mode (after turning off/on). If it does, the issue lies in the amp or the wiring to/from the amp (most likely case). Check to make sure no speaker wires came loose and touched +12V or ground (car body). From the sound of it, my guess is something internal to the amp died and will need repair.

Mar 22, 2008 | Car Audio & Video

2 Answers

My amp goes into protection mode at high volume

need more info, make and model of amp and subs please

Feb 18, 2008 | Kicker DX350 Car Audio Amplifier

1 Answer

Subs stop in middle of songs with deep base

may be the inpedance is too low , poor current...i try to change a wire alimentation for one of number 4 ...and screwed gnd! gd look!!

Mar 16, 2007 | Pioneer TS-W256C Car Subwoofer

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