4 channel HU, but only 2 speakers?

[ramfactor]

I will soon be installing a new head unit and front speakers in my company truck. I have a Pioneer deh-p2900mp and Boston SL80's for the front doors. Here's my question. If my HU is rated at 22 RMS X 4 @ 4 ohms, can I attach both left channels to one speaker and get 44 RMS or does it just not work that way. Would this damage the HU or speaker? Thanks!

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[dragnix 5,000+ posts]

get an amp

 

[n2audio 5,000+ posts]

If my HU is rated at 22 RMS X 4 @ 4 ohms, can I attach both left channels to one speaker and get 44 RMS or does it just not work that way. Would this damage the HU or speaker? Thanks!

No - doesn't work like that.

I'm not sure if it would fail immediately, but the HU would be severely stressed.

 

[ramfactor]

It's an amp then. Looking at an Alpine MRP-F250. Channels 1 and 2 to the front speakers, then bridging 3 and 4 to a bazooka bass tube. All this in a Ford Ranger!

 

[ultimate157 5,000+ posts]

you'll be presenting each channel with a 2 ohm load, theoretically drawing twice the current (double the wattage) per channel (88wrms)

Most likely your HU's internal amp would die very quickly.

 

[benzmansl65amg 10+ year member]

i want someone to test this and see how it works

 

[ultimate157 5,000+ posts]

i want someone to test this and see how it works

Buy my headunit and I'll test it for you //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif