sub wiring

[grand2000prixgtp]

does any one know how to wire a sub for 4 ohms. ita an alpine type r.
thanks.

[skidoojames151]

hmm i dont know what you mean wire it for 4 ohms...is it a Dual voice coil?....2 subs?? heres a link to sub wiring on crutchfield...just choos what you have SVC means single voice coil(only one positive and one negative on the sub) DVC (2 reds and 2 blacks)

Subwoofer Wiring Diagrams

[grand2000prixgtp]

it dual voice coil. im trying to get it wired to this amp in bridged mode.

• 2-channel car amplifier
• 125 watts RMS x 2 at 4 ohms (190 watts RMS x 4 at 2 ohms)
• 380 watts RMS x 1 in bridged mode (4-ohm stable in bridged mode)
• CEA-2006 compliant
• selectable low-pass filter (80 Hz, 12 dB per octave)
• selectable bass boost (0/6/12 dB at 50 Hz)
• MOSFET power supply
• preamp and speaker-level inputs
• fuse rating: 30A x 2
• 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
• 10-7/16"W x 2-7/16"H x 14-1/8"D
• warranty: 1 year
• Want more peace of mind? Extended Service Plans Available

[skidoojames151]

yea thats beyond my knowledge...i do know this, a DVC sub tends give a 2 ohm load because of how they are designed...its like having 2 subs..so with that said i belive that you need a different amp...i dont like 2 channel amps for subs anyway because they arent as efficient...sub amps are class D and they almost always are 2 ohm stable

[skidoojames151]

the only thing i can say is if you dont wish to buy a new amp or subwoofer is look up the specs of your sub..my guess though is it gives a 2 ohm load, with that said the only thing you could do is change the crossovers on each voice coil to 8 ohm crossovers..they are more than likely 4 ohm crossovers...with 8 ohm crossovers it will give a 4 ohm load to the amp and you wont risk blowing it up...but, you could hook it up as is and just not turn up the bass all the way and you should get good life out of it

[skidoojames151]

and when i said blowing it up i meant the amp not the sub

[I800C0LLECT]

You need to know what the rating is of each coil. You have two options...parallel or series. Parallel, i.e. 4ohms/2 = 2ohm resistence. Series, i.e. 4ohms*2 = 8ohm resistence.

Typically the DVC speakers are two 2ohm coils. You can achieve 1ohm or 4ohm resistence.

Subwoofer Wiring Diagrams

[lorenzojay]

Series Parallel Speaker Impedance try this link. it will show you how to wire all sorts of amps and subs.

[windycitygtp]

is it a dual 2 ohms or dual 4 ohms sub

[matt5112]

is it a dual 2 ohms or dual 4 ohms sub

Answer this and you'll get your answer.

[eddie97gt]

whats the model number on the type r if its a dual 4 ohm and you parallel the coils you will cook the snot out of the amp

[matt5112]

Heres a typical Type R model #: SWR-1222D

SW: Subwoofer
R: R-type
12: speaker size (12" in this case)
2: Nominal impedance of one coil, in this case 2 Ohms
2: # of coils, in this case two.

[eddie97gt]

ok 1222d is a dual 2 ohm coil , that amp should work if you are just doing one , what you want to do is take one jumper wire from 1 red to 1 black , that should leave you one red and one black open and take that to the bridged output of your amp and it should work good , if you are running 2 subs you dont want a 2 channel amp you want a mono amp , lemme know how it does

[grand2000prixgtp]

delete.

[I800C0LLECT]

funny how everybody keeps posting