4 channel amp suggestions for 8" sub and Component Speakers

youthman

Junior Member
Currently, I'm using an MTX Thunder 240 (200w bridged x 2) with a JL Audio 8w0 SVC sub (75w rms, 150 peak). I have installed Polk db571 5x7 Coax in the front doors and factory 5x7 in the rear doors.

I want to move the Polk db571's to the back doors and install a pair of Polk MMC6500 Components in the front doors or in kick panels.

My thought is to sell the MTX and buy a 4 or 5 channel amp. I would bridge 2 channels for the sub and use the other two channels to power the components.

I have a few questions:

1. All the speakers are 4ohm. The sub in bridge mono would yield a 4 ohm load. When I hook up the components to the two channels (one component for each channel), since there are two 4ohm speakers (woofer and tweeter), does the amp see those as a 2ohm load or still a 4 ohm load?

2. Any budget amps less than $100 that you would recommend? I don't mind used, even using "old school" amps.

Some amps I have looked at locally are:

Kicker KX 700.5 (5 channel amp) (40x4 @ 4ohm, 70x4 @ 2ohm, 150x2 @ 8ohm) - $80

Soundstream Rubicon RUB4.500 (75x4 @ 4ohm, 125x4 @ 2ohm, 250x2 bridged mono) - $80

Eclipse AE4000 (75x4 @ 4ohm, no specs for 2ohm, 150w bridged mono)

- $100 firm

Kicker ZX350.4 (60x4 @ 4ohm, 90x4 @ 2ohm, 175x2 bridged mono) - $80 - $100

Would you recommend any of these and why?

I am leaning towards the Kicker KX 700.5. I'm thinking I could bridge two channels to power the left door component speakers, bridge two channels to power the right door component speakers and bridge the sub channels to drive the sub.

 
I have another question. When you hook up the components, does the amp see a 4ohm load or a 2ohm load since there are two speakers? My guess is somehow 4ohm...just don't know why.

 
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youthman

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