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Old 11-11-2018, 06:59 AM
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Wiring Diagram

Hi All,

Attempting to add a JL sub to the system.

What im hoping to find is an un-equalized audio output so I can feed that to the sub amp and allow the crossover for this to operating independently from the head unit EQ.

Thinking I will drastically reduce bass level on head unit and increase bass to the new sub.

Any one have ideas on where to find such an output?

Thanks!!
Old 11-12-2018, 12:43 AM
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I’m guessing if you find the factory amp you can find this output, probably the signal going into it, but not 100% sure where this is
Old 11-12-2018, 06:46 PM
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Originally Posted by joeliu2003
Hi All,

Attempting to add a JL sub to the system.

What im hoping to find is an un-equalized audio output so I can feed that to the sub amp and allow the crossover for this to operating independently from the head unit EQ.

Thinking I will drastically reduce bass level on head unit and increase bass to the new sub.

Any one have ideas on where to find such an output?

Thanks!!
There are no analog outputs on the RDX (line level or speaker level). Audio travels from the audio unit to the amplifier digitally. The amplifier is controlled by the audio unit using a serial data connection.
Old 11-12-2018, 07:06 PM
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Originally Posted by zroger73
There are no analog outputs on the RDX (line level or speaker level). Audio travels from the audio unit to the amplifier digitally. The amplifier is controlled by the audio unit using a serial data connection.
sounds like the only option would be to use output speaker wires for the sub as signal, not sure what they have the cross over set at for that sub, but that would be your best option in this case
Old 11-12-2018, 08:20 PM
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Ah yeah that does make sense given the surround setup. Hooking up to the sub output makes sense...kind of blows my idea of taking bass out of the other speakers, but might not matter.

Thinking of of putting the amp and sub in the hatch floor....could be pretty sweet.

Old 01-13-2019, 01:44 PM
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What am I missing.

If the ELS is so good, why are we talking about mods on the speakers and subs? Is there really going to be that much of an Improvement?
Old 01-14-2019, 10:07 PM
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You're not missing anything. The ELS "3D" in the Advance is really good bone stock for listening to classic rock, IMO. Randomly swapping speakers is likely to screw it up, not improve it.

If you want to rattle house windows a half mile away with synthetic boom-boom crap, you might feel the need for a powered subwoofer.

Now ask me what I really think.

But FWIW I agree that using the subwoofer output is your best bet for connecting an aftermarket powered sub. I can pretty much guarantee the other speaker analog outputs are heavily "massaged" with digital equalization.

But I wouldn't do this to "take the bass load off the other speakers". If you have a Tech or Advance with the ceiling speakers, getting the sources closer to your ears rather than your ankles is HUGE. I think if you dial that back, it will make things sound muddier, not clearer.
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