small resistor wired in line with to the sub?

[5.0coug 10+ year member]

so i got a old ported 10" box that that my brother is going to use with his kappa perfect. he accidently ordered a single vc which limits him to 4ohm.

thing is when i was taking the old blown cerwin vega sub there was a resistor looking thing screwed to the side of the box that had the positive from the sub run thru it out to the box connection. any ideas of what it can be? also is there any way i can wire his single 4ohm vc sub down to 2ohm with a infinity 311a mono amp? thanks in advance

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[Chevyaudio 5,000+ posts]

No...you will waste power on the resistor, either get a differnt sub with the right coil, or get an amp that will do its power at 4 ohms.

 

[azimuth 5,000+ posts]

so i got a old ported 10" box that that my brother is going to use with his kappa perfect. he accidently ordered a single vc which limits him to 4ohm.
thing is when i was taking the old blown cerwin vega sub there was a resistor looking thing screwed to the side of the box that had the positive from the sub run thru it out to the box connection. any ideas of what it can be? also is there any way i can wire his single 4ohm vc sub down to 2ohm with a infinity 311a mono amp? thanks in advance

you're stuck at 4 ohms.

 

[Calikid 5,000+ posts]

buy another 10" sub with a single VC

4 ohm then just wire them to get a 2 ohm load.

 

[xluben 10+ year member]

does the mono amp have two outputs?

some monoblocks do, and they're usually wired in parallel internally.

you could bridge these and get a 2 ohm load //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

as for the resistor i don't know what you mean.

 

[ramos 5,000+ posts]

Nope , Can't get 2ohm power to a 4ohm svc driver. As Chevy said the extra power would be going to the dummy load anyway. And the "resistor looking thing " was probably an inline crossover. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[azimuth 5,000+ posts]

Nope , Can't get 2ohm power to a 4ohm svc driver. As Chevy said the extra power would be going to the dummy load anyway. And the "resistor looking thing " was probably an inline crossover. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

home stereo speakers sometimes still use the inline crossover

 

[xluben 10+ year member]

you should be able to use the far right and far left output terminals to show the amp a 2 ohm load //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[xluben 10+ year member]

# Speaker Output: 4 Set screw terminals for connecting speaker wires; handles up to 8 gauge (16 gauge minimum recommended)
* Note: There are two sets of terminals to make it easier to connect multiple subwoofers. The terminals are connected internally in parallel.

i smrt

 

[pwnt by pat 10+ year member]

I don't know wtf is wrong with the websites listing the amplifier as bridgable...

it's an impossibility that they are bridged internally and deliver more power in "bridged" wire mode

# RMS Power: 116W x 1 @ 4 ohms# Bridged RMS Power: 312W x 1 @ 2 ohms (the word bridged should be EXCLUDED - as it's not valid)

you can not "bridge" something that's already bridged. The amp is a two channel amp bridgeable to one chanel or it's a mono block which can not be bridged.

It doesn't matter WHAT terminals you hook the sub up to, you're only going to get 116w at 4 ohms. You can use whatever conbination + and - that makes you happy.

 

[pwnt by pat 10+ year member]

you should be able to use the far right and far left output terminals to show the amp a 2 ohm load //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

bridging only works when you have TWO INDEPENDANT channels. Since they're internally the same channel with just two prongs, there's nothing to bridge.

It's like a power socket in your home. If you take one of the two prongs and stick it in the other outlet, you don't get 230v.

 

[ramos 5,000+ posts]

bridging only works when you have TWO INDEPENDANT channels. Since they're internally the same channel with just two prongs, there's nothing to bridge.
It's like a power socket in your home. If you take one of the two prongs and stick it in the other outlet, you don't get 230v.

Exactly //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

"The terminals are connected internally in parallel. " Just means you have two sets of connectors . Use either or , doesn't matter as long as you use pos and neg . Doesn't mean it automatically halves the impedence //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[ultimate157 5,000+ posts]

There are only two sets of terminals for ease of installation. You're stuck at 4 ohms with your current equipment. Period.

 

[xluben 10+ year member]

ok, my bad.

but say you have two SVC 4 ohm subs.

one into each output "channel".

outputs in parallel internally.

can someone draw me a schematic of how that's not a 2 ohm load?

i think i can understand how it's not 2 ohms for a single sub (would 'bridging' the channels even work?), but for two subs i'm confused.

thanks.

 

[wilzyx 5,000+ posts]

for 2 subs it is a 2 ohm load, or 8, but he only has 1, so he can only have a 4 ohm load. and if thats a mono amp it wont be able to bridge at 2 ohms, you gotta get something old school to handle that.