Amp wiring question
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On The Tree
Joined: Feb 2007
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From: Keller, TX
Amp wiring question I have a JL 12w3v3 sub that is 4 ohm. The amp I have is a Fosgate P325.1. Question, the installer hooked it up with the positive and negative from 1 channel. Can it be wired with a wire in the positive of one channel and the negative in the other channel? The sub is 500 rms. The amp can be bridged at 2 ohms. Does this make sense?
Is this possible?
Is this possible?
That's going to be the problem - looks like that amp is rated at 175w @ 4 ohms and 325 @ 2 ohms. You'll need to present it with a 2 ohm load, and that can be done by wiring a 4 ohm *dual* voice coil sub in parallel or a single voice coil that is 2 ohm. Unless you change the sub from 4 to 2 ohms, I think you are stuck.
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I have a JL 12w3v3 sub that is 4 ohm. The amp I have is a Fosgate P325.1. Question, the installer hooked it up with the positive and negative from 1 channel. Can it be wired with a wire in the positive of one channel and the negative in the other channel? The sub is 500 rms. The amp can be bridged at 2 ohms. Does this make sense?
Is this possible?
Is this possible?
Probably be better though if you could get a 2ohm single of that woofer, or if they make a DVC version get that (I'm not up on my JL's)
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Unless I'm reading this wrong, it seems the installer has it wired into one channel of what would be a 4 ohm stereo setup if there were 2 subs. As long as the amp is bridgable it should run at 4 ohm mono (one channel positive and the other channel negative) which would give you a lot more power. Take a look at the 2 speaker outputs in question, there should be a line showing which positive and negative to use for bridged applications. Yes you would get more power from having a 2 ohm load running mono, but the 4 ohm load running mono will get a lot more power than running a 4 ohm load on half stereo.
Does that make sense?
Does that make sense?
