wiring subs to amp

[Beermakesmehoppy 10+ year member]

Hello,

I am new to this car audio stuff and wanted to know something. If I hooked up 2 subs in parallel bridged to a 500 watt 2 channel amp, does that mean that 500 watts goes into each sub? Or what if I do the same but in series?

thanks

Jon

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[Alaxan 5,000+ posts]

If you put them in parallel you decrease the ohm resistance on the amp and allow it to push more freely. You do not want to put them in a series unless they are two ohm subs and your amp is not one ohm stable. Most amps however are two ohm stable and most (certainly not all) subs are standard 4ohms. Running them in parallel will allow your amp to push at its best and will send the most amount of power available from the amp to each sub equally. Since I do not know what type of amp or sub you are looking at here. I will not guarantee any certain wattage rating going to each sub, but can guarantee it will be at its most efficient wiring it this way.

 

[Beermakesmehoppy 10+ year member]

so theoretically speaking, if I had a 200/2 amp and I bridged it with 2 subs in parallel, would 200 watts go to each sub or woulld 200 be divided into each sub.(100 into each?)

can the sub determine how many watts go into it by it's resistance?

thanks

Jon

 

[Savant 10+ year member]

Originally posted by cockeyed00 so theoretically speaking, if I had a 200/2 amp and I bridged it with 2 subs in parallel, would 200 watts go to each sub or woulld 200 be divided into each sub.(100 into each?)

 

can the sub determine how many watts go into it by it's resistance?

thanks

Jon

If you have the subs and amp, post the model/make.. it will make helping you a LOT easier..

Most amps don't let you run 2 ohm bridged, only 2 ohm on each channel.. if you have 2 subs that are single voice coil subs and want to run them in parallel to get the impedence down (and make the amp drive harder on that channel) you will get more total from that channel than if you ran at a higher impedence, but each sub will **** up 1/2 the power.. You would probably be better served to have one sub on each channel (depending on sub/amp/etc etc etc)..

Without knowing what subs/amp there is no way to really give you a reasonable answer, especially since you aren't asking a clear question..

EDIT: To specifically answer your question.. 200x2 bridged would be more than 200 watts.. normally it would be close to 400, the subs would split that and each get 200.. in parallel, you lower the resistence so you would get more than 400 (in theory) so you could get more to each sub, but again, most amps I've seen are NOT 2 ohm stable bridged so you would be overdriving the amp and it will shut down or melt down..

 

[Rockman 10+ year member]

You can't get free power. If you wire your subs in parallel and bridge your amp, 1/2 the rated power of the amplifier will be delivered to each sub. Same with it being it series, however, wiring in series increases the impeadance load on the amp and it will not deliver as much power. The delivered power still splits evenly between the subs according to ohms law...

 

[Savant 10+ year member]

Originally posted by Rockman You can't get free power. If you wire your subs in parallel and bridge your amp, 1/2 the rated power of the amplifier will be delivered to each sub. Same with it being it series, however, wiring in series increases the impeadance load on the amp and it will not deliver as much power. The delivered power still splits evenly between the subs according to ohms law...

I think we should try to have that law appealed and make a new one that says 'free 500 watts for all' //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Alaxan 5,000+ posts]

only 500 watts? WTF? LOL I am runnign 2100watts to each sub in the explorer and getting ready to run 2400watts to each sub in the Harley truck

 

[firemx220 10+ year member]

YOU WIN

 

[firemx220 10+ year member]

http://www.rockfordfosgate.com/customersupport/

NO JUST KIDDING

MAYBE THIS SITE WILL HELP

 

[Beermakesmehoppy 10+ year member]

okay okay,

thanks for the help. yet another question:

if i had a 10w6 whch is a dual 6ohm, what is the lowest resistane i could get from it? how is it possible to lower resistance in a single sub? I know if you have more than one sub you can run them in parallel to cut resistance, but how with only one sub?

thanks

Jon

 

[Alaxan 5,000+ posts]

Originally posted by cockeyed00 okay okay,

thanks for the help. yet another question:

if i had a 10w6 whch is a dual 6ohm, what is the lowest resistane i could get from it? how is it possible to lower resistance in a single sub? I know if you have more than one sub you can run them in parallel to cut resistance, but how with only one sub?

thanks

Jon

Lowest resistance you can get on here is going to be 3ohms for one sub run each coil in a parallel configuration