AMP Not working right


New member
Username: Factor067

Post Number: 7
Registered: Oct-04
I just bought a Alpine MRP-M350 and i got the it all hooked up and got the wires all connected and i start it up and the light is on but its not bumping.. The sub is working but im not getting any bass out of it. I turned up the gain and the filter and still nothing its like its powered by the HU. Any ideas? I don't have the speaker input harness but i have RCA cables running form the HU. Thats all i need right?

Thanks in advanced.

Unregistered guest
turn the filter down, with it up you are cancaling the low notes

Bronze Member
Username: Mu_forever

Post Number: 22
Registered: Jul-04
thats only if he has the crossover set to filter out the highs. try checking your crossover and make sure you're not filtering out your low end.

Gold Member
Username: Glasswolf

NorthWest, Michigan USA

Post Number: 4574
Registered: Dec-03
make sure the remote trigger line is connected and getting 12V when the stereo is on.
set amplifier to LPF (low pass)
set XO freq to 80Hz for subs
set gain to no higher than half way. yoou don't want the amp to clip due to being overdriven.

if everything is wired properly, that should work

New member
Username: Factor067

Post Number: 8
Registered: Oct-04
thx guys i got it working sounds excellent!!
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