Can I hook up a car sub to my home theater system?

fisheerman

Senior member
Oct 25, 2006
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depends on the sub and the receiver that you are hooking it up to.

most car subs are 4 ohms or dual voice coil 2ohm or 4 ohm

alot of the home audio receivers are rated at 8 ohms.

if the sub is a dual 4 ohm then wire it in series and you will get 8 ohms and that is the safest way to run it.

anything else "may" cause some problems.

-fish
 
Mar 11, 2004
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It depends, do you mean directly or outputting the signal from the reciever to an amp which will drive the sub? If its the former then you'll likely have some issues, if its the latter then it won't be any more difficult than a regular HT sub (well from the reciever anyways).

The problem here is that car subs are designed for a different application, and as such might not be that great for HT duty. You'll have to take enclosure and other things into consideration. It will depend on the sub and the enclosure you use how good it is. I think most car subs would probably be boomy and not offer a nice refined sound. This might be what you're wanting, and it'd be ok for music playback at a party or if you're a bass-head.

The last bit I'd like to add is to remember your neighbors. Ever had someone drive around with a sub cranked well beyond a balanced level in a car? Imagine that being stationary. Yes, people can do this with HT subs too, but most people don't own that great of HT subs (usually ones from HTiB setups which are pretty weak), and most people who want to put car subs in their house usually are wanting to crank the bass. So, please just remember there are other people (especially if you live in an apartment building).
 

jtvang125

Diamond Member
Nov 10, 2004
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There are a few problems with that route but it is still possible. You have to remember most receivers today send a low level signal for the sub channel which means it's not amplified. You'll need an external amplifier to pump this signal up to power the car subs since most car subs have no built in amplifier either. A HT sub takes care of this problem by integrating an amplifier into the sub enclosure. Just run the low level signal to the sub input, adjust level and bam you have room shaking bass.

I've used car subs for the home before and they are extremely efficient in small places so they'll get loud with just a small amount of power. Depending on the sub the bass can be quite boomy as well.