My mtx thunder 6500d amp hums when connected light turns on but no output

Check the ground wire and the power wire for a bad connection.

there are coils inside the amp the power it an ur output input could be burned out . u can bring it to a pro to fix it . it would cost no more then $100 to fix it . i hope this was helpfull

make a dark

Sounds like you have your cables backwards. You must have positive connected to negative somewhere. Take a good look at the connections.

Not suggested to parallel the output of two amps. Instead take each amp, find out what the amps lowest impedance it can drive is and select your speakers based on that. According to MTX these are stable down to 2 ohms without a rated output power of 500Watts X 1. If you get two dual voice coil subwoofers with each coils characteristic impedance of 4 ohms, when you parallel the two coils you will get a 2 ohm load. Just maek sure the speaker can handle the 500 watts.

Hello frank_sadach,

"Bridging" connects 2 amp channels to one output. The MTX 81000d is a single channel amp so it cannot be bridged.

Hope this helps.

Sorry to say mate but that is one blown up amp! :(

My solution to this would be to get another amp

Sorry Matey

Upfront Audio

good morning and welcome to fixya. not a bad setup you have here at all, you ned to start by checking the speaker wires inside the box to the connector inside and then the wires from connector to amp on outside. if everything looks fine there, then you need to check the amp for power out of the rca plugs to make sure the channel is not dead. if you are looking for a new amp you can try several different ones from fosgates new line up to soundstream's. im running 4 polk momo 12's on the tarantula amp and love it. they are great amps. hifonics also has a new line up pretty cool stuff, heard really good things about there stuff to. good luck and let me know so i can help you out.

if your power light is on then check your preamps (sub out from head-unit).Maybe you need to turn on that output thru head unit's audio menu.Also when using dual voice coils if you wire them out of phase there will be no output

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