LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Non-ML Sub?

Old 11-27-17, 06:01 PM
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rwdmtngoat
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Default Non-ML Sub?

Hey guys, new to the forum! I've tried hunting through the audio forums but haven't found much info on the non-ML stereo in the LS430. Did these come with subs? It does sound deep but doesn't have that punch of my old Nak LS400. If they don't have subs would it be difficult to add one in? Thanks!
Old 11-27-17, 06:58 PM
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If there is a sub, it would be on the rear deck. Should be fairly easy to spot. Either way, you can get a line out converter and add a Amp and sub. Did this too my ML and it sounds incredible.
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Old 11-27-17, 07:02 PM
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Great thanks, I'll take a look. I just bought the car so it'll be getting back from the mechanic in a few days. The Pioneer(?)'s quality is surprisingly good! Just needs a bit more bass.
Old 11-27-17, 07:17 PM
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According to the factory repair manual, the standard (non-ML) audio system is equipped with a 2-ohm dual voice cone subwoofer. You will find the LS430 8" subwoofer at the center of the rear deck, just in front of the interior 3rd-brake light.

Old 11-27-17, 07:22 PM
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I did see on another post that the rear sub is 2 ohm though they listed it as a 10". It definitely feels like a smaller 8" though would the cavity support a 10 either way?
Old 11-28-17, 03:41 AM
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Originally Posted by rwdmtngoat
I did see on another post that the rear sub is 2 ohm though they listed it as a 10". It definitely feels like a smaller 8" though would the cavity support a 10 either way?
Yes, both are 8" OEM. I'm sure you can fit a 10" with a custom-made bracket, but I have not seen it done on this forum.

Old 11-28-17, 06:36 AM
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Ooh... Small voice coil on the Pioneer... Well, as they say, it's not the size of the coil, but the HZ it can reproduce...
Old 11-29-17, 07:25 PM
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If you decide to replace the OEM subwoofer with an after-market subwoofer, please note that the standard Pioneer system uses a 2-ohm Dual Voice Coil (DVC) woofer, and the Mark Levinson system uses a Single Voice Coil 16-ohm woofer. For Mark Levinson, you can wire a 8-ohm DVC woofer in series to yield the 16-ohm impedance (measured around 14.5-ohm resistance). Shown below are the wiring scheme for the 2 systems.


Last edited by rkw77080; 10-19-18 at 09:12 AM.
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Old 10-19-18, 12:34 PM
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Bumping an old and VERY useful thread. Any 2-ohm 8" sub should work, correct? Looking at
Amazon Amazon
for my non-nav system.

Old 10-19-18, 02:19 PM
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Originally Posted by Romanova
Bumping an old and VERY useful thread. Any 2-ohm 8" sub should work, correct? Looking at https://www.amazon.com/Kicker-CompR-.../dp/B01BLV356W for my non-nav system.
Confirmed. The Kicker-CompR DVC 2-ohm subwoofer is safe to use with the LS430 Pioneer amplifier.
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Old 10-19-18, 03:02 PM
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You probably already know this, but I will mention the wiring procedures here for completeness...

Please pay special attention to the polarity of the 2 signal pairs. The output signal going to the speaker thrusts the voice cone forward to produce sound, and if the polarity is reversed, the voice cone will actually retract instead. It will still make sound but most of the sound pressure will go toward the trunk of your car. Worse yet, imagine if you wired the DVC with one of the 2 pairs wrong, you will ended with the 2 coils/windings fighting each other (i.e. the voice cone does not move much).

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Old 10-19-18, 05:05 PM
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Originally Posted by rkw77080
Confirmed. The Kicker-CompR DVC 2-ohm subwoofer is safe to use with the LS430 Pioneer amplifier.
Going to order this on payday. Thanks for the great info! Will update this thread once it arrives and gets installed.
Old 10-27-18, 01:38 PM
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Originally Posted by rkw77080
If you decide to replace the OEM subwoofer with an after-market subwoofer, please note that the standard Pioneer system uses a 2-ohm Dual Voice Coil (DVC) woofer, and the Mark Levinson system uses a Single Voice Coil 16-ohm woofer. For Mark Levinson, you can wire a 8-ohm DVC woofer in series to yield the 16-ohm impedance (measured around 14.5-ohm resistance). Shown below are the wiring scheme for the 2 systems.

Any suggestions from going from the factory wire to the sub terminal? I would assume it would be best to use speaker cable for the aftermarket sub, though I'm not sure what the best method is to go from what I assume is 18 gauge wire to multi-strand speaker wire. There has to be something more elegant than a butt-splice or a scotch-lock connector?
Old 10-27-18, 02:26 PM
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If this were my car, I would use scotch-lock connectors in order to preserve the existing subwoofer connector. Later if you decide to go back to a OEM subwoofer, you would just remove the scotch-lock connectors and tape up the puncture wire jacket. This section of the wires will be hidden under the rear deck so no one will see them anyway.
Old 10-28-18, 08:52 AM
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Originally Posted by Romanova
Bumping an old and VERY useful thread. Any 2-ohm 8" sub should work, correct? Looking at https://www.amazon.com/Kicker-CompR-.../dp/B01BLV356W for my non-nav system.
As of 10/28, this sub is now $74 with Prime. Not sure how long it will last, but I pulled the trigger.

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