NX - 1st Gen (2015-2021)

Aftermarket amp & sub

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Old 10-12-15, 08:27 AM
  #16  
ramses974
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ther is no preout for an amplifier ,the amplifier is in the HU Fujitusten ...
Please wait until this Friday, cause this Friday i will open again my car to install the Helix dsp or an AXMP 01 pioneer
it is easy with a multimeter to find the speaker , but if you can't wait this Friday i will post the way to get the signal from the level speaker
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Old 10-12-15, 08:38 AM
  #17  
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Originally Posted by ramses974
ther is no preout for an amplifier ,the amplifier is in the HU Fujitusten ...
Please wait until this Friday, cause this Friday i will open again my car to install the Helix dsp or an AXMP 01 pioneer
it is easy with a multimeter to find the speaker , but if you can't wait this Friday i will post the way to get the signal from the level speaker
With million thanks.
If you have a wiring diagram, it is prefect
Does it have a stock power amp at the back of nx?

Last edited by hklexusnx; 10-12-15 at 04:02 PM.
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Old 10-12-15, 11:41 PM
  #18  
Rozay604
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U don't need a helix dsp if your not gonna change the speakers. Audison has a 2 ch loc with auto turn on. I took the signal from the rear sub. That's what I did in my nx.
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Old 10-12-15, 11:45 PM
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Originally Posted by hklexusnx
With million thanks.
If you have a wiring diagram, it is prefect
Does it have a stock power amp at the back of nx?
No stock power at the back at the NX as i already said , it is only for ML/Pio version ...
Old 10-12-15, 11:47 PM
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ramses974
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Originally Posted by Rozay604
U don't need a helix dsp if your not gonna change the speakers. Audison has a 2 ch loc with auto turn on. I took the signal from the rear sub. That's what I did in my nx.
HELIX DSP only permets to add delay and phase on the speakers with additional amplifiers.
The way you did with the Audison is a good solution ,but if it was for a full range speaker you will hear a lot of floornoise.This floornoise do not appears on the subwoofer channel
Old 10-12-15, 11:48 PM
  #21  
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Originally Posted by hklexusnx
With million thanks.
If you have a wiring diagram, it is prefect
Does it have a stock power amp at the back of nx?
U should get rid of that mrxf65. It's a 4 ch amp. If u wanna stick to that alpine line go with the mrx110 or pdxm6
Old 10-12-15, 11:51 PM
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Originally Posted by ramses974
HELIX DSP only permets to add delay and phase on the speakers with additional amplifiers.
The way you did with the Audison is a good solution ,but if it was for a full range speaker you will hear a lot of floornoise.This floornoise do not appears on the subwoofer channel
I'm aware of that as I have a helix dsp pro in my 2013 gs350 f sport running full hertz Mille. Running active. All these guys wanted was jus a sub in there car so they don't need a dsp. I have zero floor noise in my nx.
Old 10-12-15, 11:53 PM
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Originally Posted by ramses974
HELIX DSP only permets to add delay and phase on the speakers with additional amplifiers.
The way you did with the Audison is a good solution ,but if it was for a full range speaker you will hear a lot of floornoise.This floornoise do not appears on the subwoofer channel
Good luck with your Iasca setup. I found the nx has a lot of rattles in the back
Old 10-14-15, 07:38 AM
  #24  
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Originally Posted by ramses974
No stock power at the back at the NX as i already said , it is only for ML/Pio version ...
Thank you.
hope you will "open" your NX in this Friday and help me identify the speaker cables behind the HU
Old 10-14-15, 04:03 PM
  #25  
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Originally Posted by Rozay604
U should get rid of that mrxf65. It's a 4 ch amp. If u wanna stick to that alpine line go with the mrx110 or pdxm6
4 channels amp is fine for me.
Since I want to add a power amp to drive 8 speakers in NX
Old 10-15-15, 09:05 PM
  #26  
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Front speaker HU FUJITSUTEN LEXUS NX




rear speaker HU FUJITSUTEN LEXUS NX
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Old 10-15-15, 09:12 PM
  #27  
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Originally Posted by hklexusnx
4 channels amp is fine for me.
Since I want to add a power amp to drive 8 speakers in NX
Alpine PDX fullrange class D are good amplifiers but only good amplifiers, not at the level of the class A or class a/b amps traditional
If the way is compactness and power i will prefer Audison or Kenwood
Old 10-16-15, 02:16 AM
  #28  
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Originally Posted by ramses974


Front speaker HU FUJITSUTEN LEXUS NX




rear speaker HU FUJITSUTEN LEXUS NX
It seems different with mine




The wiring is different
Very strange
Old 10-17-15, 07:42 AM
  #29  
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yes very strange
i think the only way is to take a multimeter to test in ohmeter mode the speakers or with a battery AA
Meanwhile you can take a look at the colors of the wire for each speaker
Old 10-18-15, 09:34 AM
  #30  
hklexusnx
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Finally, i open nx tonight and discover that a pioneer amp is at the back. Two wiring seems input and speaker out are found.
For the input wiring, how to identify the FL, FR, RL, RR?
Can I directly connect to the RCA jack then go into the aftermarket power amp?









Pioneer amp





Seems a input for amp





How to identify the wiring for input?


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