I need a 4 channel amp for less than $150

[SamIam71]

For your dash Amazon.com: Stinger 0-600 Hz 4-Bass Blockers Blocks for 6-Inch Speakers: Car Electronics

For 45 Watts x 4 CEA 2006 rated, built in crossover for your doors Amazon.com: Alpine KTP-445U 4-channel Power Pack Amplifier: Car Electronics

Alpine Electronics of America, Inc.

 

[SamIam71]

Honestly' date=' after doing some research, there doesn't seem to be much difference between speaker level and LOC setups. It really depends on other existing factors.
And the fact here is, speaker level inputs for me makes more sense.

I notice that these speaker level input harnesses have a ground wire. Where do you hook that up to? The GND on the amp?[/quote']

This little Alpine I suggested can do line level or low level with rca's. It has rca' on the harness, but the manual says t just snip them off to use speaker level input. There is a switch on back of the amp to select line level or speaker level.