messed up amp?

[Matador 10+ year member]

sup guys, got a problem. i just got a cheap sub to play with it, but it's not working.

the speaker wires are new(12gauge), the RCA is fairly new too.

here's what i did so far, i checked the speaker wires coming out of the amp for any signal or anything with a DMM, and there's nothing, so i m guessing is teh amp. then i checked the RCA (not sure if i did it right, just + n - from RCA to + n - to DMM), n there seems to be no current there neither.

so it's prob between the RCA (hopefully this cuz cheaper) or the amp.

am i checkin the RCA right? i m prob gonna check the sub outputs from the hu but doubt it. how else can i check whether the amp is receivin or sending any signal?

i would appreciate any help, thanks. //content.invisioncic.com/y282845/emoticons/banghead.gif.8606515f668c74f6de0281deb475b6fd.gif :banghead:

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[Matador 10+ year member]

forgot, power turns on n off fine.

 

[ftgu 10+ year member]

or connect wires to your sub , then tap them on a 9volt battery. if it pops then it works.

to find out how stable it is get a digital multimeter with an ohm setting and test the speaker leads to see if it is reading the ohm load the speaker is rated at.

 

[mustang0969 10+ year member]

take the amp to your local car audio shop and have them test it

cheap

this will end the idea if it is bad to not

to test the rca cables

take the cables and put your dmm and continuity it will beep if there is a solid connection

put the black lead on one center and the red on the other

repeat for the outside