Reply to thread

Message

<blockquote data-quote="tpmeredith" data-source="post: 7159274" data-attributes="member: 625173">I installed a memphis MCA-2004 4 channel amp yesterday, before installing it all the speakers worked running off the headunit...Now only the front left works good and the front right is crackly, when I fade it all the way to the back I can hear only bass hits coming out of the back, even though the rears are set to HPF just like the fronts and not LPF, and tuned the exact same. All the gains are set fairly lowI&#039;ve tried swapping the RCA cables (RCA and speaker wires are ran on opposite side of car as power lines) The amp powers on fine, however when I do change the filters for the back from LPF to HPF or flat I can hear the speakers pop fairly loud regardless of gain setting and if I&#039;m even touching the switch for the filter I can hear a little bit of music coming out of it. I&#039;m guessing it&#039;s possible the 4 channel is dieing/dead or in need of repair?I can pull it out tomorrow and have it tested somewhere or inspect for busted caps / etc (Don&#039;t have another 4 channel to swap into it)Admittedly I&#039;m not the most experienced with car audioI guess another step before pulling it out tomorrow would be to try plugging other speakers into the front left input on the amp to verify the wiring? Dunno, trying to see if I made any stupid mistakes but doesn&#039;t seem like it from my perspective</blockquote>

[QUOTE="tpmeredith, post: 7159274, member: 625173"] I installed a memphis MCA-2004 4 channel amp yesterday, before installing it all the speakers worked running off the headunit... Now only the front left works good and the front right is crackly, when I fade it all the way to the back I can hear only bass hits coming out of the back, even though the rears are set to HPF just like the fronts and not LPF, and tuned the exact same. All the gains are set fairly low I've tried swapping the RCA cables (RCA and speaker wires are ran on opposite side of car as power lines) The amp powers on fine, however when I do change the filters for the back from LPF to HPF or flat I can hear the speakers pop fairly loud regardless of gain setting and if I'm even touching the switch for the filter I can hear a little bit of music coming out of it. I'm guessing it's possible the 4 channel is dieing/dead or in need of repair? I can pull it out tomorrow and have it tested somewhere or inspect for busted caps / etc (Don't have another 4 channel to swap into it) Admittedly I'm not the most experienced with car audio I guess another step before pulling it out tomorrow would be to try plugging other speakers into the front left input on the amp to verify the wiring? Dunno, trying to see if I made any stupid mistakes but doesn't seem like it from my perspective [/QUOTE]

Verification