Works at very low low level, has popping sound like cone is unseating when turned up, changed sub speakers and no change, can the amp be prematurely clipping-thats exactly what it sounds like- I am no expert but even at low level(5-10watts) and I turn up the subs volume, it duplicates the same popping noise
SOURCE: Car Sub JL 12w3 low sound
So I am assuming that you have just setup/wired this up recently? Have you had this working before?
You can have a look at the gain control on the amp & see if this have been set really low. This will help if the signal coming from your stereo is weak. The other thing I would suggest is to make sure that the amp can actually push this sub. I know what the specs say:
but I don't believe most of these. Many manufacturers embellish what their products can actually do! With the bigger more established brands such as JL Audio you will have no problems, their products have been tried & tested so much on the competition circuit.
SOURCE: 12w3v2 Started making distorted bass noise at low volume
Connect each speaker coil one at a time to a square 9 volt battery and watch for the cone to move.
Also try hooking another speaker to your amp just to make sure the noise isn't in the amp.
You can use a 9 volt battery to test wire polarity also. Hook up the + wire of the speaker to the + terminal of the battery and the - speaker to the - battery terminal. If the speaker moved UP or OUT then the wiring is correct. If it moved IN or DOWN then the + and - wires are backwards on the speaker.
Also if you have two or more speakers hooked together test all the same way while they are hooked to each other. ALL of the speakers need to move in the same direction at the same time.
Clipping causes more speaker damage than anything. "Dirty Power" can happen in good quality amps too. The gain control is to match the voltage between the headunit and the amp. It is NOT a volume or boost knob. If you overdrive the first stage of the amp and then clip it damage will occur to the amp and speakers at some point.
Hope this helps.
SOURCE: Popping
If you Wire the 13 w7 in parallel you get 0.75 ohms which this amp is incapable of handling, that's why your speaker is popping. Be carefull cause this setup could ruin both your amp and sub. You have to wire that sub in series so that the amp "sees" a 3 ohm load which it's best suited for.
SOURCE: sub works but doesn't sound right
hey been there before u need new rca wires form ur radio to the amp.
SOURCE: popping sound! please help - jl 500/1 and two jl w3v3 2ohm subs
no connection are good + to + -to - thats all that matters. either the speakers are blown or you need a stronger amp. since you already tried speakers probably need bigger amp. definitley not the box. no such thing as a break in period, are the subs 10 12 inch or what. you could try to bridge them too that means hook both up to the same +-terminals, 2 wires per screw. it usually isnt the way they hook them up, its the wires fuses etc that cause problems. what guage wires is the speaker wire, the power line etc. if you give me these guages i might be able to get somewere
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Yes, speaker polarity is correct from amp to speaker, this problem started all of a sudden. I think they are calling this the "machine gun" effect that this subs been known for. A recap, I have went through the circuit board and there are no burn spots, cleaned it, check the speaker for defects(also change the woofer with a brand new one) and the same sound. There is just no umph from this any longer. It definitly sounds like clipping, even at low volume with amp at mid level. Is it possible for the diy to fix the amp, or would replacement(which could be costly for a rear panel sub amp) be the only recourse?
is it only one sub or multiple?
have you made sure the positive on sub is hooked 2 the positive on the amp
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