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1981 Isuzu I-Mark

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Overview 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 1981 Isuzu I-Mark

Find speakers to upgrade your sound and fit in the factory speaker location for your I-Mark.  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.

Front Door Panel Speakers

Front Door Speakers

Speakers for your front door panels

Rear Deck Corner

Rear Deck Corner Speakers

Speakers for your corner rear deck

Rear Door Panel Speakers

Rear Door Panel Speakers

Speakers for your rear door panels

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Dads & Grads Sale

Free Gear / Open-Box Deals / Huge Discounts up to 40% off Car / Marine / ATV Audio

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Speaker Location
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.
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NVX VSP4 with Speaker Installation Kit

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters

VSP4, FRING4, SDRLR1, SDSK2, BTK106 big
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NVX VSP4 with Speaker Installation Kit

450W Peak (150W RMS) 4" V-Series 2-Way Coaxial Car Speakers with Silk Dome Tweeters

• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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Free or discounted install kits when available.

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159
List price $137.70
-34% $91.52 /pair

In stock

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• 225 watts Peak Each, 75 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

Cerwin Vega H752 with Speaker Installation Kit

Includes: (2) 5.25" Coaxial speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

H752_ACC_KIT big
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Cerwin Vega H752 with Speaker Installation Kit

Includes: (2) 5.25" Coaxial speaker, 2 Piece Foam Speaker Ring Kit, Sound Damping Kit, Installer Panel Removal Tool Kit, Rubber Roller

• 300 watts Peak Each, 35 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Graphite Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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152
List price $156.70
-30% $110.02 /pair

In stock

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• 300 watts Peak Each, 35 watts RMS Each
• 1" Polypropylene Balanced Dome Tweeters
• Graphite Reinforced Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Infinity PR503F with Speaker Installation Kit

120W Peak (40W RMS) Primus Series 5-1/4” 2-Way Car Speakers

INFSPKPR503F, XBAF525, SDSK2, SDRLR1, BTK106 big
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Infinity PR503F with Speaker Installation Kit

120W Peak (40W RMS) Primus Series 5-1/4” 2-Way Car Speakers

• 120 watts Peak Each, 40 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

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147
List price $172.66
-36% $109.98 /pair

In stock

Only 3 Left!

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• 120 watts Peak Each, 40 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 91 dB

Infinity Reference REF-5032CFX

90W RMS 5.25" Reference 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

REF-5032CFXAM, XBAF525, SDSK2, SDRLR1, BTK106 big
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Infinity Reference REF-5032CFX

90W RMS 5.25" Reference 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

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147
List price $202.71
-43% $115.02 /pair

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• 135 Watts Max Each, 45 Watts RMS Each
• Edge-Driven Textile Tweeter
• Plus One Polypropylene Oversized Cone
• 3 ohm Impedance
• Sensitivity: 92dB
• Mounting Depth: 1-15/16"

Pioneer TS-G1320S with Installation Accessories

70W RMS 5.25" G-Series 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

TS-G1320S, XBAF525, SDSK2, SDRLR1, BTK106 big
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Pioneer TS-G1320S with Installation Accessories

70W RMS 5.25" G-Series 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 250W Max Each, 70W RMS Each
• 1-3/16 Balanced Dome Tweeter
• Injection Molded Polypropylene with Mica Cone
• 4 ohm Impedance
• Sensitivity: 88dB
• Mounting Depth: 1-3/4"

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154
List price $137.71
-38% $85.02 /pair

In stock

Add to Cart

• 250W Max Each, 70W RMS Each
• 1-3/16 Balanced Dome Tweeter
• Injection Molded Polypropylene with Mica Cone
• 4 ohm Impedance
• Sensitivity: 88dB
• Mounting Depth: 1-3/4"

Infinity REF407F with Installation Accessories

210W Peak (70W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers + 4" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

REF407F_ACC_KIT big
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Infinity REF407F with Installation Accessories

210W Peak (70W RMS) 4" Reference Series 2-way 3-ohm Coaxial Speakers + 4" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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219
List price $211.66
-31% $147.01

In stock

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• 105 watts Peak Each, 35 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

Infinity REF507F with Installation Accessories

270W Peak (90W RMS) 5.25" Reference Series 2-way 3-ohm Speakers + 5.25" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

REF507F_ACC_KIT big
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Infinity REF507F with Installation Accessories

270W Peak (90W RMS) 5.25" Reference Series 2-way 3-ohm Speakers + 5.25" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

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225
List price $212.66
-29% $150.51

In stock

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• 135 watts Peak Each, 45 watts RMS Each
• 1/2" Textile Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 3 ohm
• Sensitivity: 92 dB

MB Quart PK1-113 with Sound Damping

220W Peak (110W RMS) 5.25" Premium Series 2-way 4-ohm Coaxial Speaker + NVX SDBSK2 Premium Sound Damping

PK1113_SDBSK2 big
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MB Quart PK1-113 with Sound Damping

220W Peak (110W RMS) 5.25" Premium Series 2-way 4-ohm Coaxial Speaker + NVX SDBSK2 Premium Sound Damping

• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters with tunable waveguide housing
• Lightweight Aerated Pop Paper with Mica Blend cone material
• Impedance: 4 ohm
• Sensitivity: 85.9 dB

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46
List price $188.73
-27% $136.86

In stock

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• 110 watts Peak Each, 55 watts RMS Each
• 1" Magnesium Dome tweeters with tunable waveguide housing
• Lightweight Aerated Pop Paper with Mica Blend cone material
• Impedance: 4 ohm
• Sensitivity: 85.9 dB

Pioneer TS-A1301C with Sound Damping

600W Peak (100W RMS) 5.25" A-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

TSA1301C_SDBSK2 big
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Pioneer TS-A1301C with Sound Damping

600W Peak (100W RMS) 5.25" A-Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 50 watts RMS Each
• 1-3/16" Polyetherimide Hard Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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46
List price $188.74
-18% $154.99

In stock

Only 3 Left!

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• 300 watts Peak Each, 50 watts RMS Each
• 1-3/16" Polyetherimide Hard Dome tweeters
• Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Polk Audio DB402 with Sound Dampening Kit

270W Peak (90W RMS) 4" 2-way Coaxial Speakers with Sound Dampening

SDSK2,DB402 big
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Polk Audio DB402 with Sound Dampening Kit

270W Peak (90W RMS) 4" 2-way Coaxial Speakers with Sound Dampening

• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"

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50
List price $118.73
-24% $90.00 /pair

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• 135 Watts Max Each, 45 Watts RMS Each
• 0.75" shallow tweeter design
• Polypropylene UV tolerant cone
• 4 Ohm Impedance
• Sensitivity: 90dB
• Mounting Depth: 1.79"

DS18 ZXI-44 with Speaker Accessories

100W RMS 4" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

ZXI-44, FRING4, SDSK2, SDRLR1, BTK106 big
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DS18 ZXI-44 with Speaker Accessories

100W RMS 4" 2-Way Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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142
List price $152.66
-23% $117.48 /pair

In stock

Only 2 Left!

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• 150 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Dome Tweeters
• Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Polk Audio DB402 DB+ with Installation Accessories

90W RMS 4" 2-way Car & Marine Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

DB402, FRING4, SDSK2, SDRLR1, BTK106 big
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Polk Audio DB402 DB+ with Installation Accessories

90W RMS 4" 2-way Car & Marine Coaxial Speakers with Speaker Baffles, Sound Damping, Roller, and Panel Removal Kit

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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Free or discounted install kits when available.

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146
List price $171.70
-26% $126.36 /pair

In stock

Add to Cart

• 135 watts Peak Each, 45 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

DMD52_SDSK2 big
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Diamond Audio DMD52 with Sound Damping

160W Peak (80W RMS) 5.25" DMD Series 2-way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

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46
List price $138.73
-10% $124.98

In stock

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• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB

JVC CS-DR421 with Sound Damping

440W Peak (70W RMS) 4" DR Series 2-Way 4-Ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

CSDR421_SDBSK2 big
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JVC CS-DR421 with Sound Damping

440W Peak (70W RMS) 4" DR Series 2-Way 4-Ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 220 watts Peak Each, 35 watts RMS Each
• 1" Polyetherimide Balanced tweeters
• 2 wide opening speaker grilles
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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46
List price $137.74
-17% $113.99

In stock

Only 1 Left!

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• 220 watts Peak Each, 35 watts RMS Each
• 1" Polyetherimide Balanced tweeters
• 2 wide opening speaker grilles
• Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

JVC CS-DR521 with Sound Damping

520W Peak (80W RMS) 5.25'' DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

CSDR521_SDBSK2 big
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JVC CS-DR521 with Sound Damping

520W Peak (80W RMS) 5.25'' DRVN Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 260 watts Peak Each, 40 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters with small cover
• Robust and lightweight Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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46
List price $137.74
-17% $113.99

In stock

Only 2 Left!

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• 260 watts Peak Each, 40 watts RMS Each
• 1" Polyetherimide Balanced Dome tweeters with small cover
• Robust and lightweight Carbon Mica cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

MTX Audio THUNDER52 with Sound Damping

180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

THUNDER52_SDBSK2 big
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MTX Audio THUNDER52 with Sound Damping

180W Peak (90W RMS) 5.25" Thunder Dome Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

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48
List price $138.69
$134.94

In stock

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• 90 watts Peak Each, 45 watts RMS Each
• 1" Silk Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

NVX VSP525KIT with Sound Damping

750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP525KIT_SDBSK2 big
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NVX VSP525KIT with Sound Damping

750W Peak (250W RMS) 5.25" V-Series 2-Way Component Speaker System with 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

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73
List price $138.73
-20% $110.48

In stock

Add to Cart

• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 86 dB
• Mounting Depth: 2.04"

Pioneer TS-A1081F with Sound Damping

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

TSA1081F_SDBSK2 big
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Pioneer TS-A1081F with Sound Damping

460W Peak (100W RMS) 4” A Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

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49
List price $128.74
-18% $104.99

In stock

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• 230 watts Peak Each, 50 watts RMS Each
• 1" PEI (Polyetherimide) Hard Dome tweeters
• Carbon and Mica Reinforced Injection Molded Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

09-P142_SDBSK2 big
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Rockford Fosgate Punch P142 with Sound Damping

120W Peak (60W RMS) 4" Punch Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Save 15% Off Package Deals at Checkout!
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57
List price $128.73
$124.98

In stock

Only 1 Left!

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• 60 watts Peak Each, 30 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Injection-molded mineral-filled polypropylene cone material with VAST technology
• Impedance: 4 ohm
• Sensitivity: 86.5 dB

Rockford Fosgate Punch P152 with Sound Damping

160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

09-P152_SDBSK2 big
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Rockford Fosgate Punch P152 with Sound Damping

160W Peak (80W RMS) 5.25" Punch Series 2-way 4-ohm Full Range Car Speakers + NVX SDBSK2 Premium Sound Damping

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

Save 15% Off Package Deals at Checkout!
shipping truck icon Free shipping in USA. Provide zip for delivery date.
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73
List price $128.73
$124.98

In stock

Add to Cart

• 80 watts Peak Each, 40 watts RMS Each
• 3/4" PEI (Polyetherimide) Dome tweeters
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 87 dB

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    FAQ for Speakers in 1981 I-Mark

    Q: Can I upgrade or change the Speakers in 1981 Isuzu I-Mark?

    A: Yes this page includes all the best Speakers that work in your I-Mark.

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

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