can i get a 4ohm load from a dual 4 ohm sub?

the amp i have for the sub puts out the most at 4 ohms, but my sub is dual 4. so , i dunno

 

nobody?

 

no.

 

damn

what should i do then, since the amp puts most at 4. what happens if i wire the sub to 2 ohms and hook it to the amp thats running 4 ohms?

 

"since the amp puts most at 4."

Is this amp even bridgable ?
If it is then 2 ohm or lower should yeild the highest output....
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"what happens if i wire the sub to 2 ohms and hook it to the amp thats running 4 ohms?"

the impedace you show the amp is going to be two ohms.
If the amp is not bridgable, then its prolly gonna get a bit hot, and maybe let the magic smoke out.

low impedace = high current.

Youre safer to run it at 8, but then your not giving it much current at all.

best bet is buy a 2 ohm stable amp, and be done with it.

 

ok the amp is a rockford 500s OVER 500 Watts+ Bridged Mono @ 4 Ohms (250watts x 2 @2 ohms)
could i run one channel to each vc at 2 ohms ? or would that make some problems.

 

If that model amp. is 2 ohm stable, you should not have any prob.

 

The trouble is you can't run one channel to each voice coil at 2 ohms. If you run one channel to each voice coil you won't be getting the most power out of your amp since each channel will be running at 4 ohms.
If you bridge the amp and connect the sub in parallel, this will mean you are running the amp at 1 ohm which it most likely wouldn't be able to handle.
If you have a big enough 4 channel amp you could try bridging each channel and running it off that but the better idea would be to get a 2 ohm stable mono amp.

 

arg! do you have any suggestions about which amps i should get. im tryin to keep my budget low and kinda tryin to stick w/ rockford but whatever you guys think.

 

o yeh, my friend had this same problem before, what he did was he had bridged the amp, but had 2 wires coming out of the pos and neg, then he hooked those to each vc. and it was good. cuz wouldnt both be running at 4 ohms?
or what would happen, would i break or somethin

 

It sounds like your friend was running a bridged amp with the sub in parallel which would result in the amp running at 1 ohm.
This is fine if the amp is 1 ohm stable but most aren't so it may result in a blown amp.

 

he was runnin the same amp (and it is 4 ohm bridged) , but to a dual 4 ohm L7. he did bridge it but he had 2 wires coming out of the pos and 2 out of the neg. +- to one vc and +- to the other. he never blew anything.

 

If he has bridged it it will have only two speaker wires coming from the terminals, one from the +ve of one channel and one form the -ve of the other, unless this amp has some different feature I don't know about.
If he had 4 wires coming from it then it will be running 4 ohms per channel which the amp will handle fine.

 

yeh normally there would only be 2 wires, but he just stuck 2 wires in each terminal.

but that would handle fine, cuz each would be at 4 ohms right.

 

Aah, i see what you mean, so he had two wires under the same terminal when bridged?
By bridging the amp, it has to run at 2 ohms but when he runs 4 wires like that it will put the strain of a one ohm load on the amp. You said it is going fine so maybe the amp can handle 1 ohm loads.

 

hmm i dunno. i guess id just have to hook mine up like that or something and just see what happens.

kinda bad, and could be a waste of money. but o well

 

if u have the punch 500s amp it a 4ohm mono amp
but u can run it at 2 ohms mono just don t crank it all the way with too much disortion
also u can add a fan it will work fine

remeber rockford amps r current hungry so get a extra battery

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tomtomloc &raquo;</TD></TR><TR><TD CLASS="quote">

remeber rockford amps r current hungry so get a extra battery</TD></TR></TABLE>

ha yeh seriously, with my old 12s and one rockford 500s amp i drained a day old battery to .02 volts in one burp. haha i was funny cuz i was at school and was kinda showin off to my friend, cuz my 12s were louder than his 2 12in L7s on a jbl 1200.1 it was great! aahh

 

Also make sure you set your head unit or amp to MONO so that you don't have a different signal going to each voice coil. This will ruin your sub.
If the amp has separated left and right gain/crossover controls then make sure they are set EXACTLY the same for each side.

 

o well i just found out that they have these subs in dual 2 ohm, so i guess ill try to find those for cheap and wire them in series so i can run the amp mono. that will work right.

 

Yes, that will work a lot better if you're just wiring one.