20 Most Recent MTX Thunder 8000 T8154A Car Subwoofer - Page 7 Questions & Answers

If none of the lights are coming on for the amp then the amp is not getting power and/or ground. Check the connections. Check the fuses. Or the amp is no good.

Your basic crossover is going to have a power (+) and ground (-). Your power wire goes to the battery, and your ground goes to the frame. You will need to hook up your RCA or speaker wires to the input side. Then hook the other two RCA connections to your amp.

yes, the amp can be used fof full range speakers. to use it a s such, the amp's "crossover" switch must be set to "off" (could also be labeled as "full-range" or "defeat").

the amp is 2 channel. 4 channel is for surround sound or to have independent front and rear channels/volumes. this 2 channel amp will support 4 speakers, but you wont be able to balance from front to back- the front and back speakers will be at the same volume all the time if both are hooked up to the amp.

I can't be sure but it sounds like the battery just can't supply enough current while the car is starting, which is not unreasonable as the current load to start the car is quite high. I can only suggest fitting a capacitor as near to the unit's supply as possible or fitting a much uprated battery.(Batteries also lose the capacity to provide high current as they age, how old is the battery?)
I thought the fitting a capacitor was more or less standard in high power installations these days?

if your talkin external fuse use a 32v fuse

Using a multimeter, check the power going to the amplifier for around 12 volts, and check the remote wire for anywhere from 3 to 12 volts. If power is getting to the amplifier and the remote wire is signalling the amp to turn on, check the fuse/s on the amplifier. If the fuse is not blown, have the amplifier checked out by a stereo shop or send it to the manufacturer for warranty repairs. I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

Check your remote wire on both the deck and amp... If the remote wire is loose it will turn the amp on and off constantly... Also check to make sure that the fuses on the amp it self are properly seated.

Sounds like the subs are blown with the voicecoils fused together which means the amp is/was seeing a dead short ( zero Ohms reisitence) not good for any amp. Disconnect the speaker terminals from the amp and see if it turns on. The funny smell might have been the subs blowing up, i'll keep my fingers crossed for you.

run all three positive to negative and bridge them at the amp

you need to change your remote wire to a switched 12volt source, not a constant, run it to your ignition fuse

had a friend with same problem...paid me to look at it and well...amp was just overheated or short/loose ground.

I hesitate to answer this question for fear that you will not like the answer even if it is the truth. I have received a bad rating from a couple of people in the past just because the right answer was not what they wanted to hear.

This is a mono sub-woofer amp, which means that it is already bridged internally. You only have one speaker output in this amp, that means that the amp circuit is bridged inside, it is not split into two channels.

To bridge any output, it requires 2 channels, otherwise there is nothing to bridge.

I have been repairing car amplifiers for over 18 years, and I promise you that there is no way to bridge a single channel amp. Bridging means to convert 2 channels into 1 channel. If all you have is one channel, then there is nothing left to bridge.

I hope this explains it for you, if you have any other questions feel free to post them here and I will answer as soon as possible.

And please do not punish me with a bad rating if you do not like the answer, it is the correct answer, and sometimes the right answer is not always what we want to hear, but it does not make it wrong.

Dave

There are several things you can check. Do you have a multi-meter?

This site well be helpful for you to configure the connections
http://www.the12volt.com/caraudio/boxes.asp

connectors on the rca's are bad. need to be changed out