A strange problem w/ two amps.

GoBlue
GoBlue Posts: 30
edited February 2008 in Car Audio & Electronics
Ive got two Alpine amps, a 4 channel, and a mono sub. I just hooked em both up and only the sub is going. I have used the 4 ch. before so I know it works. The 4 ch. is ON, but no sound. Can you destroy an amp by touching the ground and power together or sparking the power cords? I did that once or twice. I have narrowed it down to that, or not setting my head unit up right. Im pretty sure its all fine, I personally think there is an amp problem. Any ideas?

Deck: Pioneer deh-p6800mp

Theater:

Pioneer Elite VSX-55TXI
Adcom 555
Acoustic Research AR9 (Latest)
JBL S Center
Definitive Technologies ProCinema 1000 (Surround x2)
JBL PS1400 Sub
Monster 3600 MkII Conditioner
NAD T572 DVD
PS3
Lots of wire

-Looking for a decent Sunfire MK II-

Samsung LNT-4665F
Polk OMW3 - TV Speakers

Vintage:

Pioneer SX-780
Pioneer PLA-45D Turntable
Advent Heritage Speakers
Post edited by GoBlue on
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Comments

  • exalted512
    exalted512 Posts: 10,735
    edited February 2008
    Youre either:
    Not getting signal to the amp
    Causes:
    Bad RCA
    Bad head unit output
    Head unit output is turned off
    RCAs came undone at amp or radio

    Amp not getting enough voltage/current:
    Causes:
    partially blown fuse
    pinched power wire

    Not getting signal from the amp:
    Causes:
    amp outputs are bad
    speaker wire cut/pinched
    terminals inside the box or at the subwoofer disconnected

    Bad sub

    To test:
    Since you have another amp, unhook the good amp and put the amp in question in its place. If it still doesnt work, thats 98% guaranteed its a bad amp.
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • GoBlue
    GoBlue Posts: 30
    edited February 2008
    I swapped out amps and found out that it doesnt work with the sub either, so how would a brand new amp go bad, but still turn on? Is it something that I did maybe?

    Theater:

    Pioneer Elite VSX-55TXI
    Adcom 555
    Acoustic Research AR9 (Latest)
    JBL S Center
    Definitive Technologies ProCinema 1000 (Surround x2)
    JBL PS1400 Sub
    Monster 3600 MkII Conditioner
    NAD T572 DVD
    PS3
    Lots of wire

    -Looking for a decent Sunfire MK II-

    Samsung LNT-4665F
    Polk OMW3 - TV Speakers

    Vintage:

    Pioneer SX-780
    Pioneer PLA-45D Turntable
    Advent Heritage Speakers
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  • exalted512
    exalted512 Posts: 10,735
    edited February 2008
    Is there a fuse on the amp? Try replacing it. If it still doesnt work, its probably the amp.
    -Cody
    Music is like candy, you have to get rid of the rappers to enjoy it
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  • ShinAce
    ShinAce Posts: 1,194
    edited February 2008
    Shorting the power wires should not damage the amp. Keep troubleshooting.
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