Question about Jl Audio 13W7 Car Subwoofer
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Posted on Jan 02, 2017
Your amp based on what you say would have no problems whatsoever with
an 8 ohm load, not even if it actually has dual 4 ohm coils and you
wire them in parallel giving a 2 ohm load (don't know your particular sub).
Every good car amp has protection circuits to prevent itself or the speakers from damage from too low loads so it shouldn't be a problem even if you screw up with your calculations. A good amp should even be capable of dealing with a dead short on a channel, zero ohms, activating protection of course.
Good luck and don't worry!
Posted on May 26, 2009
it depends if the amp is mono or stereo and if it is bridged. if it is bridged the amp cant handle the speaker the best way is to lower the level on the amp or connect it to only one channel. also you might want to check your ground cable use a thick one and make sure its making good contact with the chassis. this happened to me. luck
Posted on Sep 13, 2009
If you have two subs to connect, place the speakers next to each other face down, you will notice that the connection points run in sequence +- and +-. Now connect the - (negative) from the one speaker, to the + (positive) of the other speaker. Now connect the open + from the one speaker and the open - from the other speaker to your amp.
If you have only one speaker it should be bridgeson your amp.
Your amp should have a bridging indication. On the connection points of each channel on the the amp, you should see a mark pointing to the first - and the last +. That will be your bridge
Posted on Jun 09, 2010
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Mar 14, 2012 | Jl Audio Car Audio & Video
1000 W RMS @ 1.5 ohm - 4 ohm (11V-14.5V)
THD at Rated Power:
<0.05% @ 4 ohm
>95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth)
5 Hz - 250 Hz (+0, -1dB)
>500 @ 4 ohm / 50 Hz
According to the chart your amp is only stable down to 1.5 Ohms, so running at .75 Ohms the noise you are hearing is the amp clipping (running more power than it can handle at low ohms)
I would suggest wiring it in series, or you could adjust the gain on the amp until the popping goes away.
Hope this helps.
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