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1998 Lexus LS400

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Overview Upgrade your Stereo Upgrade your Speakers Add a Subwoofer Add an Amplifier Digital Sound Processors Audio Installation & Accessories Add a Backup Camera Dads & Grads Sale

Speakers & Speaker Installation for 1998 Lexus LS400

Find speakers to upgrade your sound and fit in the factory speaker location for your LS400.  After you choose your speakers, we'll help you find speaker adapters, speaker harnesses and other accessories for installation.

All car speakers

Shop All Speaker Locations in the Vehicle

See all speakers that fit, regardless of location.

Lower Front Door

Lower Front Door Speakers

Speakers for your lower front door.

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

Upper Front Door Speakers

Upper Front Door Speakers

Speakers for your upper front door.

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Speaker Size
Refers to the size of the speaker measured in inches. Every vehicle has standard application sizes. Please use our vehicle fitment guide for your vehicle's specific speaker sizes if you do not know them.
Design
The number of individual drivers in a car speaker. Speakers with 2 drivers are known as a 2-way, and 3 drivers are known as a 3-way. Component systems are often referred to as "separates" because the tweeter is not attached to the midwoofer (main speaker driver) and mounts separately in a location such as a door post. Component systems typically come with an external crossover so you can easily adjust the high and low frequencies sent to both the midwoofer and the tweeter. Center channel speakers are great for those looking to have surround sound in their vehicle.
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
Sensitivity
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
  Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.
Tweeter Design
Designs such as cone, dome, semi-dome, balanced dome, and whizzer are most popular. Cone tweeters are simple, efficient and typically are the most reasonably priced. Dome tweeters are used in most home speakers, and provide a smoother and more accurate sound. Semi-dome design is one with a dome placed inside a cone. A Balanced dome driver is a semi-dome with equal reproduction area given the cone and dome portions of the driver. A whizzer tweeter is a separate tweeter cone driven by the voice coil of the woofer.
Series
Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
PRO-X Series (32)
Reference Series (22)
V Series (14)
Machete Series (12)
Primus Series (12)
PRO Series (12)
Punch Series (11)
Kappa Series (10)
ZXI Series (10)
Polk DB+ Series (9)
PRO-GM Series (9)
Stage Series (9)
S Series (8)
SPL (8)
XED Series (8)
HED Series (7)
NEO Series (7)
SPL Show Series (7)
Cento Series (6)
Dieci Series (6)
EQ Series (6)
N-Series (6)
G-Series (TSG) (5)
Terminator Series (5)
Thunder Series (5)
Apocalypse Series (4)
DMD Series (4)
MSNEO Series (4)
PNW Series (4)
Power Series (4)
Premium Series (4)
Prime Series (4)
Signature Series (4)
Street Reference Pro (4)
Stroker Pro Series (4)
VEX Series (4)
XL Series (4)
Zeus Series (4)
8PRO Series (3)
A Series (3)
C2 Series (3)
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CS Series (3)
EXL Series (3)
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M Series (3)
MAS Series (3)
MC Series (3)
MSPRO Series (3)
Prime Series (3)
PRO-FR Series (3)
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Sport Series (3)
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Uno Series (3)
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KS Series (2)
LCMR Series (2)
MA Series (2)
MotorSport Series (2)
PANCADÃO Series (2)
PRO-NS Series (2)
PRO-SM Series (2)
PS Series (2)
Punch Pro Series (2)
Thunder Dome Series (2)
VEGA Series (2)
VTEK Series (2)
BASSREV Series (1)
Black Hydra Series (1)
Colossus Classic Series (1)
CVPRO Series (1)
CVPX Series (1)
Diamond Elite Series (1)
Discus Series (1)
DR Series (1)
DS Series (1)
E-Series (1)
ECX Series (1)
EPIC PRO Series (1)
EQ NEO Series (1)
eXcelon Series (1)
Godfather Pro Series (1)
Hawk Series (1)
HED Pro Series (1)
MM Series (1)
MR Series (1)
NEO SPL Series (1)
Octagonal Series (1)
Polk Audio MM1 Series (1)
Pro Audio on Wheels Series (1)
Pro Audio Series (1)
PRO-CF Series (1)
PRO-ZT Series (1)
Punch P1 Series (1)
Road Thunder Extreme Series (1)
RS Series (1)
SA Series (1)
SQ Series (1)
Stadium (1)
Stage 3 Gen 2 Series (1)
Stallion Series (1)
Studio Series (1)
Symphony Series (1)
Tsunami Series (1)
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MTX RTX8 (Sold Individually)

300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

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MTX RTX8 (Sold Individually)

300W RMS 8" Road Thunder Extreme Series Pro Audio Mid-bass 4-ohm Speakers

• 150 watts RMS Each
• Treated Paper cone material
• Large magnet attached to a stamped steel basket
• Impedance: 4 ohm
• Sensitivity: 97.7 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
List price $69.95
-14% $59.95

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Only 2 Left!

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Deaf Bonce HANNIBAL HM-8E

320W Peak (160W RMS) 8" Hannibal Series Midrange 4-ohm Car Speakers

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Deaf Bonce HANNIBAL HM-8E

320W Peak (160W RMS) 8" Hannibal Series Midrange 4-ohm Car Speakers

• 160 watts Peak Each, 80 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 91.8 dB

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Install kits available for most vehicles

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Fits the following location in your LS400
  • Rear Deck Center
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$34.90 /pair

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Hertz SX 690 H NEO

520W Peak (260W RMS) 6x9" SPL Show Series 3-Way Coaxial 4-ohm Car and Motorcycle Speakers

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Hertz SX 690 H NEO

520W Peak (260W RMS) 6x9" SPL Show Series 3-Way Coaxial 4-ohm Car and Motorcycle Speakers

• 260 watts Peak Each, 130 watts RMS Each
• 1.4" Tetolon Dome tweeter
• 1" Tetolon Dome super tweeter
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

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Fits the following location in your LS400
  • Upper Front Door
List price $650.00
-15% $549.99 /pair

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MTX TERMINATOR5

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

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MTX TERMINATOR5

140W Peak (70W RMS) 5.25" Terminator Series 2 Way Coaxial 4-ohm Speakers

• 70 watts Peak Each, 35 watts RMS Each
• Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85.3 dB

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Install kits available for most vehicles

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Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
List price $69.95
-14% $59.95 /pair

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DS18 EXL-SQ5.25

680W Peak (160W RMS) 5.25" EXL-SQ Series 2-way 3-ohm Coaxial Car Speakers

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DS18 EXL-SQ5.25

680W Peak (160W RMS) 5.25" EXL-SQ Series 2-way 3-ohm Coaxial Car Speakers

• 340 watts Peak Each, 80 watts RMS Each
• 1" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 86 dB

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Install kits available for most vehicles

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Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
$143.95 /pair

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Used from: $100.76
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Sundown Audio VEX-6.5 (VEX-658)

200W RMS 6.5" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX658)

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Sundown Audio VEX-6.5 (VEX-658)

200W RMS 6.5" VEX Series Pro-Audio Midrange 8-ohm Speaker (S-VEX658)

• 200 watts RMS Each
• Carbon Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
List price $249.99
-24% $189.99

In stock

Only 2 Left!

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PRV Audio 8CX380-4 SLIM

760W Peak (380W RMS) 8" 2 Way Coaxial Pro Audio 4-ohm Shallow Car Speaker

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PRV Audio 8CX380-4 SLIM

760W Peak (380W RMS) 8" 2 Way Coaxial Pro Audio 4-ohm Shallow Car Speaker

• 760 watts Peak, 380 watts RMS
• 1" Phenolic Horn tweeter
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
List price $99.89
-20% $79.91

In stock

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Limited time!

DS18 PRO-X8M (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Loudspeaker

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DS18 PRO-X8M (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 8-ohm Mid-Range Loudspeaker

• 550 watts Peak Each, 275 watts RMS Each
• Non-Pressed Paper cone material
• Impedance: 8 ohm
• Sensitivity: 97 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$64.95

In stock

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

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Hertz DCX130.3

160W Peak (80W RMS) 5.25" Dieci Series 2-way 4-ohm Coaxial Car Speakers

• 80 watts Peak Each, 40 watts RMS Each
• 0.6" PEI (Polyetherimide) Dome tweeters with neodynium magnets
• Water-repellent pressed paper cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
List price $150.00
-13% $129.99 /pair

In stock

Only 2 Left!

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Deaf Bonce Machete MLH-50

200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

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Deaf Bonce Machete MLH-50

200W Peak (100W RMS) 5.2" Machete Series 4-ohm Full Range Car Speakers

• 100 watts Peak Each, 50 watts RMS Each
• Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 90.4 dB

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
$29.90 /pair

In stock

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See all 5 special offers
Limited time!

DS18 PRO-X8.4BMRGB (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Pro Audio Mid-Range Loudspeaker with RGB LED Bullet

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DS18 PRO-X8.4BMRGB (Sold Individually)

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Pro Audio Mid-Range Loudspeaker with RGB LED Bullet

• 550 watts Peak Each, 275 watts RMS Each
• Translucid ABS Bullet tweeters
• RGB illumination on tweeters
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$77.95

In stock

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Power Acoustik PR-804

700W Peak (350W RMS) 8" 2-Way Coaxial Pro Audio Midrange 4-ohm Speakers

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Power Acoustik PR-804

700W Peak (350W RMS) 8" 2-Way Coaxial Pro Audio Midrange 4-ohm Speakers

• 350 watts Peak Each, 175 watts RMS each
• Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$57.99 /pair

In stock

Only 1 Left!

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Cerwin-Vega CVPX8 (Sold Indvidually)

200W Peak (100W RMS) 8" CVPX Series 2-Way Pro Audio Coaxial 4-ohm Speaker

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Cerwin-Vega CVPX8 (Sold Indvidually)

200W Peak (100W RMS) 8" CVPX Series 2-Way Pro Audio Coaxial 4-ohm Speaker

• 200 watts Peak, 100 watts RMS
• Polymide Horn loaded tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 93.6 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$84.99

In stock

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DS18 PRO-CF8.2NR (Sold Individually)

600W Peak (300W RMS) 8" PRO Series Midbass 2-ohm Motorcycle and Powersports Loudspeaker

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DS18 PRO-CF8.2NR (Sold Individually)

600W Peak (300W RMS) 8" PRO Series Midbass 2-ohm Motorcycle and Powersports Loudspeaker

• 600 watts Peak, 300 watts RMS
• Water Resistant Carbon Fiber cone material
• Impedance: 2 ohm
• Sensitivity: 96 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$251.95

In stock

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DS18 PRO-GM8.4 (Sold Individually)

580W Peak (190W RMS) 8" PRO-GM Series 4-Ohm Midrange Loudspeaker

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DS18 PRO-GM8.4 (Sold Individually)

580W Peak (190W RMS) 8" PRO-GM Series 4-Ohm Midrange Loudspeaker

• 580 watts Peak Each, 190 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 94 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$34.95

In stock

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Cerwin-Vega H52

240W Peak (140W RMS) 5.25" HED Series 2-Way Coaxial 4-ohm Speakers

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Cerwin-Vega H52

240W Peak (140W RMS) 5.25" HED Series 2-Way Coaxial 4-ohm Speakers

• 120 watts Peak Each, 70 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

1+ offers available
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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
List price $119.99
-17% $99.99 /pair

In stock

Add to Cart
Continue to cart
Available Offers (2) for Cerwin-Vega H52
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List price $119.99
-17% $99.99
$79.99 with coupon | Price details
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DS18 PRO-ZXI8M (Sold Individually)

700W Peak (350W RMS) 8" ZXi Series 8-Ohm Midrange Loudspeaker

PRO-ZXI8M big
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DS18 PRO-ZXI8M (Sold Individually)

700W Peak (350W RMS) 8" ZXi Series 8-Ohm Midrange Loudspeaker

• 700 watts Peak Each, 350 watts RMS Each
• Paper cone material
• Impedance: 8 ohm
• Sensitivity: 99 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$74.95

In stock

Add to Cart
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Limited time!

Memphis Audio SRXP82V2 (Sold Individually)

350W Peak (175W RMS) 8" Street Reference Pro Series 4-ohm Pro-Audio Midrange Speaker with RGB LED Lighting

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Memphis Audio SRXP82V2 (Sold Individually)

350W Peak (175W RMS) 8" Street Reference Pro Series 4-ohm Pro-Audio Midrange Speaker with RGB LED Lighting

• 350 watts Peak, 175 watts RMS
• Fiberglass-Filled Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
List price $119.95
Save $59.96
-50% $59.99

In stock

Add to Cart
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Cerwin-Vega HEDPS8 (Sold Individually)

600W Peak (200W RMS) 8" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

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Cerwin-Vega HEDPS8 (Sold Individually)

600W Peak (200W RMS) 8" HED Pro Series 2-Way Pro Audio Coaxial 4-ohm Shallow Speaker

• 600 watts Peak, 200 watts RMS
• Horn loaded tweeter
• Treated Paper cone material
• Impedance: 4 ohm
• Sensitivity: 95 dB

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Install kits available for most vehicles

found car based on your search
Fits the following location in your LS400
  • Rear Deck Center
$69.99

In stock

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Diamond Audio DMD52

160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

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Diamond Audio DMD52

160W Peak 5.25" DMD Series 2-way Coaxial Car Speakers

• 80 watts Peak Each
• 0.79" Silk Dome Tweeters
• Polypropylene cone material
• Sensitivity: 86 dB

1+ offers available
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VIP Product Get $11.00 in rewards to spend later

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Install kits available for most vehicles

found car based on your search
Fits multiple locations in your LS400
  • Lower Front Door
  • Rear Door
List price $119.99
-8% $109.99 /pair

In stock

Only 3 Left!

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Available Offers (2) for Diamond Audio DMD52
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List price $119.99
-8% $109.99
$98.99 with coupon | Price details
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    Q: Can I upgrade or change the Speakers in 1998 Lexus LS400?

    A: Yes this page includes all the best Speakers that work in your LS400.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

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