wiring for a dvc sub

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TakedaT
Posts: 20
Joined: Fri May 18, 2007 3:18 am
Car: 1999 Infiniti I30 Limited

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I have an Alpine MRV-F407 4/3/2 channel amp. I want to get 1 dvc sub and run a bridged channel to each of the voice coils. I've been searching on the net and finding different "opinions" on whether this is possible. Some say that you CANT wire each coil to a separate channel, even on the same amp. Some say that you can.

If it isn't possible, then i would buy 2 dvc subs and wire them each from a bridged two channels, either in series or parallel (depending on the impedance of the coils). I would prefer to have just one sub to save on space in my trunk.

Can anyone shed some light on the situation. Here are the specs for my amp.

Specifications

MAX Power (at 14.4V,EIAJ)

Per channel into 4 ohms- 120W x 4Bridged 4 ohms- 320W x 2

RMS Power (at 12V,20Hz-20kHz)

Per channel into 4 ohms- 40W x 4 (0.08% THD)Per channel into 2 ohms- 50W x 4 (0.3% THD)Bridged 4 ohms- 100W x 2 (0.3% THD)

RMS Power (at 14.4V,20Hz-20kHz)

Per channel into 4 ohms- 60W x 4 (0.08% THD)Per channel into 2 ohms- 80W x 4 (0.3% THD)Bridged 4 ohms- 160W x 2 (0.3% THD)


Modified by TakedaT at 12:18 PM 6/13/2007


coolhand
Posts: 154
Joined: Wed Nov 30, 2005 8:37 pm
Car: 1995 Nissan Maxima SE

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questions:

How many watts RMS is the sub?

What is the ohm rating of the subs?

To answer your question, you can wire the each voice coil to each channel but I think is has to be at mono not stereo (Just guessing). You can wire the sub vc's in serial or parallel (depending on the ohm rating) to one bridged channel and it should work fine.

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Rex
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Location: South of ATL
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Try this linkhttp://forums.nicoclub.com/zerothread?id=150485

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TakedaT
Posts: 20
Joined: Fri May 18, 2007 3:18 am
Car: 1999 Infiniti I30 Limited

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coolhand wrote:questions:

How many watts RMS is the sub?

What is the ohm rating of the subs?

To answer your question, you can wire the each voice coil to each channel but I think is has to be at mono not stereo (Just guessing). You can wire the sub vc's in serial or parallel (depending on the ohm rating) to one bridged channel and it should work fine.
I was looking at buying something like a Kicker S12L7-2.

Car Speaker Type ComponentElements 1-WayCar Speaker Function SubwooferSize 12"Nominal Power Handling 750 Watt RMSImpedance 4 ohm (Dual Coil)

I will buy whatever makes most sense though. If each coil is 4 ohms, then each coil should pull 100 watts RMS I think. This should be enough for the sub. Eventually I will replace the amp. I know that i could hook up the speaker in parallel or series from one bridged channel, but that would leave me only using one bridged channel and half of the amps power.

Running each channel of a mono amp to each coil is the same thing as running each coil in parallel to one channel. That is what makes a mono amp a mono amp. It is really one channel, split inside of the amp into however many terminals on the outside for convenience. What looks like two channels is really just one channel. Since mine is a multi channel amp, that is why i am asking.

For now, since the alpine is fine and I'm a bit short on cash, I want to use this one. The amp acutally sounds a hell of a lot louder than its RMS rating when hooked up to 2 4ohm subs.

Rex: Someone said to do what I am asking, but what i would really like is for someone to say that they have done it before, rather than just saying to do it. I want to know its gonna work before i buy the sub. I posted there as well.

Thanks to both of you for your quick responses.

Modified by TakedaT at 12:11 PM 6/13/2007
Modified by TakedaT at 12:26 PM 6/13/2007


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