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Low impedance light on

The low impedance light just came on and when you turn it up it sounds like the bass is getting quieter and sounds bad but at a lower volume it doesnt sound bad.

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Posted on Jan 02, 2017

  • 133 Answers

SOURCE: amp sends power to sub at low volume. but when

are the sub speakers ok? if ok then u have a problem with the Amp and the output IC's will have to be checked there cud be a problem with the input card in the amp.

Posted on Aug 26, 2009

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1 Answer

When I turn the sound up and the bass hits hard the red light comes on


That is because your impedance is not correct. You probly have 4 ohm woofers wired in parallel. Try putting them in series. That will put your impedance to 8 ohms the amp will not clip, or go in protection that is what the red light means. Good luck

Apr 30, 2015 | Car Audio & Video

1 Answer

Bass (low frequency) completely missing?


Why is the impedence of the phone.
32 ohms impedence will work well.
16 ohms suit only particular sets.

Aug 31, 2014 | Sony XBA-3 In-Ear Earphone

1 Answer

Hey! I have a problem with my sony MDR-RF81 headphones....when the bass is to loud...there volume is droping...when I listen to skirllex for example...the volume is high or low...but when the bass...


Hey there, the problem with your sony is not a hardware problem, the headphones are completely fine, its the amount of bass you are putting into the headphones, there are two solutions to this, if you're using a mobile device (Apple, android etc...), go to your app store and download an equaliser e.g poweramp, with this, you can adjust the sound going through to your headphones using the built in equalizer (usually 5-10 bands, research this if you have no knowledge of equalisers), you can use this to turn down the bass frequencies in the sound, or the only other thinkable options are if you are already have an equaliser in use, turn it down, because putting all of the bars to the top makes the sound horrible, research on some suggestions for equaliser presets (another word for equalizer settings), or just turn the volume down.

the reason this happens is because bass naturally overpowers treble, and if it is too loud, the treble and mids will be significantly quieter, headphones are a menace for this, so all you have to do is tweak the sound a little (using an equaliser) to find that perfect balance between the different elements of sound.:-) :-)

Hope this helped mate :-) :-)

Jan 10, 2013 | Sony MDR-RF810 wireless headset SONY

1 Answer

No sound from tweeter bx5a


First of all, never connect the audio from your receiver directly to the tweeter. You can blow the tweeter instantly. The mid-bass driver can be damaged from a direct connection as well.

Since you get absolutely no sound from either driver, this seems to implicate the crossover. If the crossover has opened, no signal gets through, if it has opened early in the signal path.

But, it is also possible that a short exists, and that perhaps your amp cuts off the output having sensed a short. The short could be in the crossover or one of the drivers.

Here are some troubleshooting tips--

To prevent damage to your amp, turn it off while making or breaking any connections inside the speaker boxes.

Write down which wires get connected to which place on the drivers, so you can get them back where they belong.

With your amp turned off, connect the bad speaker to your amp. You've already verified that no sound is produced when both drivers are connected.

So, with your amp off, disconnect one wire from the tweeter in the bad box.

Briefly turn your amp on and listen for sound.

If you get sound, the tweeter is shorted.

If you get no sound, with the amp off, reconnect the tweeter in the bad box and disconnect one wire from the mid-bass driver.

Briefly turn the amp on and listen before turning the amp off.

If you get sound now, but not before, the mid-bass driver is shorted.

If you got no sound either way, check the DC resistance of the mid-bass driver (only, not the tweeter. Ohmmeters put out a small DC voltage to test resistance. That DC voltage might damage a tweeter, maybe. Don't risk it). Ohm the mid-bass driver while it is not connected to the crossover. If the driver is good, you should read some ohms--a little less than the stated impedance. An 8 ohm driver might read 6.5 ohms, for instance. If you get an open or a short (with the crossover disconnected from the mid-bass driver) you have a blown driver. Two actually, since neither the tweeter nor the mid-bass driver produced any sound in the previous tests.

If you can't get ahold of an ohmmeter, try this--

Open the good, working speaker and place the two side by side.

Connect your amp to the bad speaker box only.

With your amp turned off, disconnect the wires from the mid-bass driver in the bad box and connect them to the mid-bass driver in the good box. Disconnect one of the wires from the "good" mid-bass driver first, so you don't have two crossovers connected to it at the same time--even if only one of them will get powered on. It keeps the confusion down to a minimum when trying to isolate your problem. Oh, and disconnect one wire from the bad tweeter, in case it is shorted.

Turn the amp on and listen briefly before turning the amp off.

If you got sound, the "bad" crossover is fine, but the "bad" mid-bass driver is blown. And, since you got no sound in the previous tests, the "bad" tweeter is blown, as well.

If you got no sound, try it the other way around. Meaning--

With the amp off, disconnect the speaker wires coming from your amp from the bad speaker box and connect them to the good speaker box.

Your amp is now connected only to the good speaker box.

With the amp still off, connect the mid-bass wires from the good box to the mid-bass driver in the bad box. Remember to disconnect one of the "bad" crossover wires from its own driver first, so only one crossover is connected to the "bad" mid-midbass driver. Remember to disconnect one wire from the "good" and "bad" tweeters, so the only sound you hear--if any--is from the "bad" mid-bass driver, powered by the "good" crossover.

If this produces sound, but the previous attempts failed, you have a crossover problem.

If you still get no sound, something went wrong and you need to retest the good speaker by itself and back up a few steps and try again.

Assuming you got sound from the "good" crossover while it was driving your "bad" mid-bass, make sure no wires have come loose inside the "bad" box. Assuming you have sound connections at each end of each wire, you now need to desolder the electrolytic capacitors from the circuit board.

Make sure you mark them first, so you can put them back where they belong.

You can remove only one at a time, if that helps.

Use an ohmmeter to check some components.

The big red coil should read pretty close to a short, maybe one ohm.

The capacitors should read open or infinite resistance, although you might see a steadily increasing resistance while the capacitor charges up from the ohmmeter. If you read a steady low resistance on a capacitor after it has been removed from the circuit board, that capacitor is bad and must be replaced. The markings on the capacitor should give you some clues as to the proper replacement.

All things considered, I suspect that your problem is a shorted electrolytic capacitor. But, I gave you all I could think of so you can narrow it down and isolate the problem, whatever it might be.

I hope this helps.

Feb 23, 2011 | M-Audio BX5a Speaker

1 Answer

I hooked up 2channel 500 watt amplifer and 1200 watt 300 rms subwoofer now the protection light comes on when i turn up volume


your speakers rating is too low for your amplifier. 300 watts RMS means the speaker can operate on an average of 300 Watts continuously. the 1200 watt rating is peak wattage input and meant for intermittent intervals only, a like a bass drum beat count. also , your speaker impedance must match your amplifier impedance or the speaker must be a higher impedance than the amplifier. Never lower than the amplifier's impedance output rating. If The amplifier is rated into an 8 ohm load, your speaker must be 8 ohms or higher. in other words you cannot use a 4 ohm speaker or you will damage the amplifier .

Mar 14, 2010 | Car Audio & Video

1 Answer

My bass keeps turning off and on. I can be driving thinking my bass is fine, then it just kicks in. Sounds great but then you can here the bass just shut off and feel the non solid bass.


Your probably overheating your amp from running at too low impedance. Check what your amp minimum impedance is, and make sure you have your subs wired at or above that. Remember, if your running a multi channel amp bridged the minimum impedance goes up. Check the manual and see what the bridged impedance is if your have your amp bridged. If this isn't the problem, check your sub wires and make sure they're good and secure, and not connecting, and disconnecting... Hope this solves your problem

Sep 15, 2009 | Car Audio & Video

2 Answers

No sound protection light on.


Either blown subs, or bad amp.. Disconnect the subs, and try turning the amp on, if the amp is still in protect then your amp is bad, if the protect light goes off, then your subs are bad, or possibly wired at to low of an impedance, but I don't think that will trigger the protect on an Audiobahn amp.

Aug 21, 2009 | AudioBahn A2002T Car Audio Amplifier

1 Answer

Jl amp


The amber is the low impedance indicator and can mean that the impedance of the load is too low or there is an internal fault (shorted output transistors).

The blue LED indicates that the voltage is too low. This can be due to a bad connection or low battery voltage.You need to measure the DC voltage across the B+ and ground terminals of the amp to confirm that they're at or above 12v.

Let me know if you have any other questions.


Aug 11, 2008 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Low ohm p/l


Quick primer here... Impedance drops with frequency,
you might have the amp loaded at what seems a rated spec.
However if your bassing too hard the voice coil can leave the gap (magnetic Field) and drop your impedance far enough to activate the protect circuit. This usually occurs in a bridged amp.
You can always give JL ( John and Larry actually) a call.They are a outstanding Company to deal with.
Is Maynard still with them ???
Sumthin

Jun 04, 2008 | Jl Audio 1000/1 Car Audio Amplifier

1 Answer

Buzzing bass Amp combo


The problem you have mentioned is a common one with old sets, but it also occurs in new ones also, though not frequent. You can fix this just by changing the electrolytic filter capacitors in the power supply and sub filters on the amp PCB. The new capacitors should be of the same or higher voltage rating and same capacity rating as of the existing ones. And as it is such an old one, it is better to change all the electrolytic capacitors to avoid any further problems.

Nov 23, 2007 | Peavey AMPLIFIER, 1000 WPC, DDT, 8/4/2...

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