I tap my finger around the Speaker out put and my amp sometimes turns on. I have a... Power Acoustic Car subwoofer amp Digital Class D 4000 Watts Gothic Series Mosfet, Bass EQ, Master/Slave, 1-4 ohm stable. OVN1-4000 .. One day I turned it on and it wouldnt work so I went to my trunk and tapped it around the speaker output on the amp. Then it went off. Then I tapped again and it stayed on for a bit. I've only used my twelve inch Memphis subwoofer. So I doubt I over powered it with a small wattage subwoofer twelve.

If your amp is the GT1-4500D, then no. The amp is only stable down to 1 ohm. Operation below 1 ohm load is not guaranteed.

See answer on duplicate post.

Install lager wire, you need over 280 amps to get 4000 watts.

some design need audio signal in to get it wake up from standby mode.

If you sub is dual 4 ohm voice coil, you can get a 4000 watt amp (which will give you 1700 watts RMS at 2ohms). The model number is OW-BAMF40001D. Hope this helps.

Open the case and check the resistance value of the actual speaker - should be around 8 ohms. If it doesn't get a reading, then it's bad.

You'll need power from the battery to your amp (you may be able to find a spare one at the head unit), and, using suitably thick wire, connect those to the 12vDC input of the amp.

If the amplifier accepts speaker level inputs, you can connect the amplifier input to the head unit output (maybe use the rear speaker output). At the other end of the amp, connect your subwoofer. If there's only one, use the amp bridged (more power). If you're using two, and your amp has 2 channels, use one channel per subwoofer. When you power all this up, turn the volume up from 0 slowly - if anything sounds wrong, turn it back down and switch it all off. Check all your wires and start again.

All amps aren't created equal. More exspense amps put out "cleaner" power. You need to know what the RMS power rating is for the amp at 8 ohms and 4 ohms. Also, is the speaker an 8 or 4 ohm speaker? How you wire a speaker or speakers (series or paralell) can change the ohms (resistence) which will change the power put out of the amp. Also, I'm assuming you are setting it up in mono?

Why would you hook up 4000 watt amp to a speaker that has only 1000 watts. Try a 800 watt amp instead unless you just dont want the spealers.

If smoke has come out of the subwoofer, the speaker itself, that means the voice coils have been heated excessively and they are damaged or in this case, I'd say completely blown. Voice coils blow because they've been driven too hard, too much power, too much distortion for too long.

If you can get access to the front of the subwoofer speakers, gently put even pressure with your fingers near the middle of the cone, just around the edge of the centre dust cap and push gently and slightly inwards. If you hear or feel a "scratchy" type sound or feel, or if they dont move in freely, they are blown. And if that's the case, your amp could be damaged as well.

Most modern car amps have circuit protection and will shut down when they detect a load greater than they are used to so the amp MAY be ok. One way to test the amp is to hook another speaker to it, any speaker as a test is ok, and see if sound comes out. Make sure all power is off when connecting and disconnecting speakers!