Is this idea correct?

[cajun_duck 10+ year member]

I get a set of comps and my sub. If I get a 4-channel amp, I can run my comps off of the front channel and my subs off the rear. But, instead of using the rear outputs on my deck, I can use the sub out and still control my sub from my deck?

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[CrazyKenKid 10+ year member]

you could do it that way but i wouldn't do it that way. i would use all 4 channel of a sundown 100.4 amp and then buy a MONO channel amp to push my sub(s) so you would be running 2 amps.

in my opion which is probaly wrong 4channel amps aren't tuff enough to push subs! put it this way a 4channel amp puts out what 100-200rms bridged and most subs need what at least 500rms to sound good!!

 

[cajun_duck 10+ year member]

It was an idea I was toying with. Thanks.

 

[shaneb 10+ year member]

It's completely doable. Actually JL and Alpine are creating amps that will do this quite well.

You could run your passive components from the front two channels, power rears from HU, and bridge your two rear channels for 1 or 2 subs.

Many 4 channel amps are designed to give you the ability to have a limited amount of control over each channel, thus being able to run those rear two channels only LPF.

There are a ton of different things you could do.

 

[oldschool4me 10+ year member]

if it is a good 4ch amp it will be fine. the bridged channels will more than likely not be stable under 4 ohms so make sure your total imp is no less than 4 ohms on your sub's

 

[CrazyKenKid 10+ year member]

It's completely doable. Actually JL and Alpine are creating amps that will do this quite well.You could run your passive components from the front two channels, power rears from HU, and bridge your two rear channels for 1 or 2 subs.

Many 4 channel amps are designed to give you the ability to have a limited amount of control over each channel, thus being able to run those rear two channels only LPF.

There are a ton of different things you could do.

welll actualy i guess it is doable! actualy an alternative would be to get a 5 channel amp which are made to run 4channel (comp) and 1 sub!!! although the name of the good ones escapes me right now but i know they cost a fair red penny lol!

 

[lyttleviet 10+ year member]

The arc ks 300.4 would run the system the way you are talking about nicely.

welll actualy i guess it is doable! actualy an alternative would be to get a 5 channel amp which are made to run 4channel (comp) and 1 sub!!! although the name of the good ones escapes me right now but i know they cost a fair red penny lol!

Audison 5.1k would be premium //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[joshualittle]

The arc ks 300.4 would run the system the way you are talking about nicely.X2

Audison 5.1k would be premium //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

X2

 

[NightDrifter05 10+ year member]

The Memphis 5 channel amp's are another good chioce.

 

[helotaxi 5,000+ posts]

A good 4 channel will have more than enough power on a bridged set of channels to run a sub, that is unless you think that you need to be heard down the block. There's no reason to go with a separate amp for a modest sub setup meant for listening to music.

 

[Hitler 10+ year member]

No one mentioned Rockfords 25 to life series. Expensive but probably worth it.

 

[Buck 5,000+ posts]

You can do that. Just you probably won't get much power going to your sub.

 

[n2audio 5,000+ posts]

What you're considering will work well and is a good way to get all you can get out of an amp. Cost effective too.

A quality 100x4 will give you 300-400w for a 4 ohm sub

 

[DBBOOM 10+ year member]

The Memphis 5 channel amp's are another good chioce.

x2 5 channel seems like a logical choice.

 

[n2audio 5,000+ posts]

Or you could look at it as a waste of 2 ch (or buying 2 you don't need) as a lot of people feel rear speakers need little if any amplification. I use my HU for rear fill personally.