Jump to content

Sub/Amplifier Problems


Recommended Posts

I recently recieved this sub/amp setup from my uncle for my birthday. 600W MegaVox Competition Amp and 2 x 10" Marathon subs in a Marathon competition sub box. I have a 200W power supply that I used to test them as they are 20-25 years old. When connected to the 200W (12V @ 18A) power supply the subs could play sound (used an RCA to 3.5mm adapter that came with it) but was dropping out, which I assume is to be expected considering I was running a 600W amp off a 200W power supply. After this I installed them in my mates car ( AU Falcon, his wiring was all setup as he has subs of his own) by taking the wiring from his subs and connecting it to mine. When the car was started the amp powered up, but wasn't able to get any sound either from the head unit or the 3.5mm jack adaptor. Checked the voltage running through the power input and it read 14 Volts (normal as AU Falcons charge at 14V apparently). after fiddling around trying to get it to work i took them out and hooked them up to the power supply and it was back to being choppy but could still get sound.


Any help or insight into why I can't get sound from the subs in the car but can off a 200W power supply would be greatly appreciated


Cheers, Blake

IMG_20211031_223256.jpg

IMG_20211031_223336.jpg

IMG_20211031_223315.jpg

IMG_20211031_223357.jpg

Link to comment
Share on other sites

U don't need those jumper wires see if any ac voltage is coming out of the speaker inputs

06 Charger

Pioneer double din

Pioneer 6.5 and 6×9's

Knukoncept Krystal kable rca's

0 ga knukoncept kolossus wire 

Big 3 same wire ^ 1 run 

8g karma ss speaker wire

Sundown sia 3500d at 1ohm

2 Sundown U series 12's

Duralast platinum agm H7 (Main)

Xs power d3400

Trying to find a ho alt

 

 

Link to comment
Share on other sites

8 hours ago, blakemcdonnell said:

I recently recieved this sub/amp setup from my uncle for my birthday. 600W MegaVox Competition Amp and 2 x 10" Marathon subs in a Marathon competition sub box. I have a 200W power supply that I used to test them as they are 20-25 years old. When connected to the 200W (12V @ 18A) power supply the subs could play sound (used an RCA to 3.5mm adapter that came with it) but was dropping out, which I assume is to be expected considering I was running a 600W amp off a 200W power supply. After this I installed them in my mates car ( AU Falcon, his wiring was all setup as he has subs of his own) by taking the wiring from his subs and connecting it to mine. When the car was started the amp powered up, but wasn't able to get any sound either from the head unit or the 3.5mm jack adaptor. Checked the voltage running through the power input and it read 14 Volts (normal as AU Falcons charge at 14V apparently). after fiddling around trying to get it to work i took them out and hooked them up to the power supply and it was back to being choppy but could still get sound.


Any help or insight into why I can't get sound from the subs in the car but can off a 200W power supply would be greatly appreciated


Cheers, Blake

IMG_20211031_223256.jpg

IMG_20211031_223336.jpg

IMG_20211031_223315.jpg

IMG_20211031_223357.jpg

What's going on with that power supply side of the amp as well? It looks like the wire is the same size as your speaker wire and you've got some weird things going on. Is that the way its installed in the car? 

2011 Chevy Silverado under construction

My build log here. Check it out! 

 

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   2 Members, 0 Anonymous, 336 Guests (See full list)

×
×
  • Create New...