subwoofer - no amp?

[Motofox 10+ year member]

i just recently purchased a jvc head unit off ebay as well as a 12" kicker crv subwoofer from a friend. However i do not yet have an amplifier for the subwoofer, can i connect the subwoofer to the head unit without an amp? possible/not possible, or just recommended for quality and safety reasons?

something is missing though (im guessing the amp,) on the back of the head unit i have two rca inputs for the sub and i have the wire, but on the sub it has these pieces of metal that screw tight or loose, is that how it is with all subwoofers?

sorry i am a noob when it comes to car audio...

Click to read more...

 

[bsean63 10+ year member]

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[Davin 10+ year member]

You could hook it up.....I dont think it will hurt anything (dont quote me on it). But you wont hardly hear the sub at all.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[MikeyB 5,000+ posts]

Fail

 

[Buck 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/wow.gif.23d729408e9177caa2a0ed6a2ba6588e.gif

i agree

 

[DejaWiz 5,000+ posts]

Not recommended. Whatsoever.

 

[TeoTorriatte 10+ year member]

i just recently purchased a jvc head unit off ebay as well as a 12" kicker crv subwoofer from a friend. However i do not yet have an amplifier for the subwoofer, can i connect the subwoofer to the head unit without an amp? possible/not possible, or just recommended for quality and safety reasons?
something is missing though (im guessing the amp,) on the back of the head unit i have two rca inputs for the sub and i have the wire, but on the sub it has these pieces of metal that screw tight or loose, is that how it is with all subwoofers?

sorry i am a noob when it comes to car audio...

It is possible to run it off your HU, but it is generally not recommended due to 'lack of output' reasons. The RCA's for the sub should be used only if you have an amp. If you want to run it without an amp, you will need to use one set of the powered HU speaker leads (preferably the rears).
But really, you aren't going to like the results... so just get an amp already.

 

[Hydrastas 10+ year member]

it tied me over back in the day until i got an amp.

 

[BEAVER.989 10+ year member]

The "wires" you're refering to on the back of the head unit are low level outputs, refered to as RCA's. These are for use with an amp. You will not use these without an amplifier. You would just use the high level outputs (speaker leads) to hook up your sub without an amp... but nobody here is going to recommend that and I'm not either. Do yourself a favor, get an amp.

 

[na_rsx 10+ year member]

if you wire it to 15 ohms you should be ok //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[memphisman 10+ year member]

No. I wouldnt recommend that at all. Ive seen people do it with small subs but they spliced into the speaker wires foor the door speakerts and then they fukked up their hu. So save up some money and buy an amp!!

 

[Alpine CDA-9815 10+ year member]

lol.....

 

[Motofox 10+ year member]

well, thanks for the info. to those of you who weren't being total and complete jags...

 

[brtnboarder3241 5,000+ posts]

u can precharge it by putting wires from the wall socket into the terminals, it only last for about an hour or so, but thats the cheap mans way..

 

[Thrillho 10+ year member]

well, thanks for the info. to those of you who weren't being total and complete jags...

No seriously though did it really seem likely that the answer would be yes, go ahead? Did/does your high school have a science class?