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  1. Home
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  3. Speakers with Sound Deadening

Speakers with Sound Deadening for your 2018 Optima Hybrid close

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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.
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JBL Stadium 62CF (JBLSPKSD62CFAM) with Sound Damping

660W Peak (220W RMS) 6.5" Stadium Series 2-way 3-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

STADIUM62CF_SDBSK2 big
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JBL Stadium 62CF (JBLSPKSD62CFAM) with Sound Damping

660W Peak (220W RMS) 6.5" Stadium Series 2-way 3-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Aluminum Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

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50
List price $498.69
-7% $464.94

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• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Aluminum Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

DS18 PRO-SM6.2 (Sold Individually) with Sound Damping

400W Peak (200W RMS) 6.5” PRO-SM Series Shallow Water-Resistant Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROSM62_SDBSK2 big
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DS18 PRO-SM6.2 (Sold Individually) with Sound Damping

400W Peak (200W RMS) 6.5” PRO-SM Series Shallow Water-Resistant Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 400 watts Peak Each, 200 watts RMS Each
• Glossy red steel basket material
• Water-Resistant Paper material
• Impedance: 2 ohm
• Sensitivity: 95 dB

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50
List price $83.69
-10% $75.44

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• 400 watts Peak Each, 200 watts RMS Each
• Glossy red steel basket material
• Water-Resistant Paper material
• Impedance: 2 ohm
• Sensitivity: 95 dB

NVX - Worth the Envy - Direct to Consumer Car Audio

Hertz MPK1650.3 with Sound Damping

250W Peak (125W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

MPK16503_SDSK2 big
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Hertz MPK1650.3 with Sound Damping

250W Peak (125W RMS) 6.5" Mille PRO Series 2-Way 3 Ohm Component speaker system + NVX SDSK2 Sound Damping

• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

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49
List price $958.74
-15% $814.98

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• 125 Watts Max Each, 25 Watts RMS Each
• Pressed-pulp cone with cotton fibers cone material
• Tetolon Tweeter Dome
• 3 Ohm Impedance
• Sensitivity: 93 dB

Rockford Fosgate Power T1650 with Sound Damping

300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

T1650_SDBSK2 big
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Rockford Fosgate Power T1650 with Sound Damping

300W Peak (150W RMS) 6.5" Power Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Injection-molded Carbon Fiber-filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

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58
List price $238.73
$234.98

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• 150 watts Peak Each, 75 watts RMS Each
• 1" Aluminum Dome tweeters
• Injection-molded Carbon Fiber-filled Polypropylene cone material with Vertical Attach Surround Technique (VAST)
• Impedance: 4 ohm
• Sensitivity: 88 dB

Diamond Audio MSPRO65 with Sound Damping

MSPRO Series 6.5" Midrange Motorcycle Speakers 400W RMS, Pair + NVX SDSK2 Sound Damping

MSPRO65_SDSK2 big
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Diamond Audio MSPRO65 with Sound Damping

MSPRO Series 6.5" Midrange Motorcycle Speakers 400W RMS, Pair + NVX SDSK2 Sound Damping

• RMS: 400W / Peak: 800W
• Frequency Response: 110Hz - 10kHz
• Sensitivity: 97dB
• Manufactured to IP65 Marine Grade Compliant Specifications
• Shorting Ring Utilized In Motor Structure For Far-Field Performance

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49
$294.98

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• RMS: 400W / Peak: 800W
• Frequency Response: 110Hz - 10kHz
• Sensitivity: 97dB
• Manufactured to IP65 Marine Grade Compliant Specifications
• Shorting Ring Utilized In Motor Structure For Far-Field Performance

AudioControl PNW-65 with Installation Accessories

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + 6.5” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

PNW65_ACC_KIT big
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AudioControl PNW-65 with Installation Accessories

200W Peak (150W RMS) 6.5″ PNW Series 2-way Coaxial Speakers + 6.5” Speaker Baffles + Sound Dampening, Roller and Panel Removal Kit

• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

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341
List price $366.71
-17% $303.06

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• 100 watts Peak Each, 50 watts RMS Each
• 1" Silk Dome Tweeters
• Rigid Poly Mica cone material
• Impedance: 3 ohm
• Sensitivity: 88.9 dB

Hertz CX 165 with Sound Damping

420W Peak (140W RMS) 6.5" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

CX165_SDSK2 big
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Hertz CX 165 with Sound Damping

420W Peak (140W RMS) 6.5" Cento Series 2-Way Coaxial Car Speakers + NVX SDSK2 Sound Damping

• 210 watts Peak Each, 70 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-pressed paper+ Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

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50
List price $278.74
-5% $264.98

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• 210 watts Peak Each, 70 watts RMS Each
• 15/16 Tetolon Dome Tweeters
• Semi-pressed paper+ Mica cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

DS18 PRO-SM8.2 (Sold Individually) with Sound Damping

500W Peak (250W RMS) 8” PRO-SM Series 2-ohm Water-Resistant Shallow Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROSM82_SDBSK2 big
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DS18 PRO-SM8.2 (Sold Individually) with Sound Damping

500W Peak (250W RMS) 8” PRO-SM Series 2-ohm Water-Resistant Shallow Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 500 watts Peak Each, 250 watts RMS Each
• Water Resistance Paper material
• Impedance: 2 ohm
• Sensitivity: 97 dB

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48
List price $96.69
-9% $88.44

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• 500 watts Peak Each, 250 watts RMS Each
• Water Resistance Paper material
• Impedance: 2 ohm
• Sensitivity: 97 dB

DS18 PRO-CF6.4SL (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO Series Water-Resistant Motorcycle and Motorsports Mid-Bass Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROCF64SL_SDBSK2 big
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DS18 PRO-CF6.4SL (Sold Individually) with Sound Damping

500W Peak (250W RMS) 6.5” PRO Series Water-Resistant Motorcycle and Motorsports Mid-Bass Loudspeaker + NVX SDBSK2 Premium Sound Damping

• Peak Each, RMS Each
• Water Resistant Carbon Fiber material
• Impedance: 4 ohm
• Sensitivity: 95 dB
• Priced Per Each Speaker

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49
List price $102.69
-8% $94.44

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• Peak Each, RMS Each
• Water Resistant Carbon Fiber material
• Impedance: 4 ohm
• Sensitivity: 95 dB
• Priced Per Each Speaker

Limited time!

NVX NSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" N-Series 2-Way Component Speaker System with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP65KIT_SDBSK2 big
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NVX NSP65KIT with Sound Damping

600W Peak (200W RMS) 6.5" N-Series 2-Way Component Speaker System with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Purchase $400 or More of NVX and Save 15%!
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54
List price $126.73
-21% $100.48

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• 300 watts Peak Each, 100 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Limited time!

NVX VSP65KIT2F with Sound Damping

750W Peak (250W RMS) 6.5" 2-Ohm V-Series 2-Way Component Speaker System w/ 25mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

VSP65KIT2F_SDBSK2 big
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NVX VSP65KIT2F with Sound Damping

750W Peak (250W RMS) 6.5" 2-Ohm V-Series 2-Way Component Speaker System w/ 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: 2 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

Purchase $400 or More of NVX and Save 15%!
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List price $162.73
-20% $130.48

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• 375 watts Peak Each, 125 watts RMS Each
• 1" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 2 ohm
• Sensitivity: 88 dB
• Mounting Depth: 2.51"

Hifonics ZS65CXS with Installation Accessories

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

ZS65CXS_ACC_KIT big
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Hifonics ZS65CXS with Installation Accessories

600W Peak (100W RMS) 6.5" Zeus Series 2-Way Coaxial Car Speakers + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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283
List price $107.70
-31% $74.25

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• 300 watts Peak Each, 50 watts RMS Each
• 1" Neo-Mylar Dome Tweeters
• Alpha-Cellulose cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hifonics ZS653 with Installation Accessories

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers with Speaker Installation Kit + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

ZS653_ACC_KIT big
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Hifonics ZS653 with Installation Accessories

600W Peak (100W RMS) Zeus 6.5" Series 3-Way Coaxial Car Speakers with Speaker Installation Kit + 6.5" Speaker Baffles + Sound Damping, Roller and Panel Removal Kit

• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

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279
List price $107.70
-29% $76.25

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• 300 Watts Max Each, 50 Watts RMS Each
• 1" Neo-Mylar Soft Dome Tweeter
• Alpha-Cellulose mid-woofer cone material
• 4 Ohm Impedance
• Sensitivity: 88dB
• CEA-426B compliant speakers

MB Quart FKB 116 (FKB116) with Sound Damping

240W Peak (120W RMS) 6.5" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

FKB116_SDBSK2 big
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MB Quart FKB 116 (FKB116) with Sound Damping

240W Peak (120W RMS) 6.5" Formula Series 2-way 4-ohm Coaxial Car Speakers + NVX SDBSK2 Premium Sound Damping

• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermal-formed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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60
List price $98.73
-49% $49.98

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• 120 watts Peak Each, 60 watts RMS Each
• 1" Aluminum Dome tweeters
• Lightweight Thermal-formed Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

DS18 PRO-X8.4BM (Sold Individually) with Sound Damping

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

PROX84BM_SDBSK2 big
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DS18 PRO-X8.4BM (Sold Individually) with Sound Damping

550W Peak (275W RMS) 8” PRO-X Series 4-ohm Mid-Range Loudspeaker + NVX SDBSK2 Premium Sound Damping

• 550 watts Peak Each, 275 watts RMS Each
• Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

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49
List price $89.69
-9% $81.44

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• 550 watts Peak Each, 275 watts RMS Each
• Aluminum Bullet Tweeters
• Non-Pressed Paper cone material
• Impedance: 4 ohm
• Sensitivity: 96 dB

Limited time!

NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

NSP65_SDBSK2 big
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NVX NSP65 with Sound Damping

540W Peak (180W RMS) 6.5" N-Series 2-Way Coaxial Speakers with 20mm Silk Dome Tweeters + NVX SDBSK2 Premium Sound Damping

• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.40"

Purchase $400 or More of NVX and Save 15%!
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141
List price $126.73
-33% $84.98

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• 270 watts Peak Each, 90 watts RMS Each
• 3/4" Silk Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB
• Mounting Depth: 2.40"

Rockford Fosgate Prime R14X2 with Sound Damping

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

R14X2_SDBSK2 big
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Rockford Fosgate Prime R14X2 with Sound Damping

120W Peak (60W RMS) 4” Prime Series 2-way 4-ohm Coaxial Car Speaker + NVX SDBSK2 Premium Sound Damping

• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

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62
List price $83.73
$79.98

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• 60 watts Peak Each, 30 watts RMS Each
• 1/2" Silk Dome tweeters
• Vacuum polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 85 dB

Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

T2652S_SDBSK2 big
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Rockford Fosgate Power T2652-S with Sound Damping

400W Peak (200W RMS) 6.5" Power Series 2-way 4-ohm Component Speaker System + NVX SDBSK2 Premium Sound Damping

• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

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90
List price $468.73
$464.98

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• 200 watts Peak Each, 100 watts RMS Each
• 1" Aluminum Dome tweeters with integral suspension
• Carbon Fiber Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 89 dB

Alpine HDZ-653S with Sound Damping

600W Peak (200W RMS) 6.5” Status Series Slim-fit 3-way 4-ohm Component Speaker System + NVX SDSK2 Sound Damping

HDZ653S_SDSK2 big
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Alpine HDZ-653S with Sound Damping

600W Peak (200W RMS) 6.5” Status Series Slim-fit 3-way 4-ohm Component Speaker System + NVX SDSK2 Sound Damping

• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

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48
List price $1458.74
-33% $974.94

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Only 1 Left!

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• 300 watts Peak Each, 100 watts RMS Each
• 1" Dome Tweeters
• Carbon Composite cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

Hertz ML1650.3 with Sound Damping

600W Peak (300W RMS) 6.5" Mille Legend Series 4 Ohm Woofers + Grille + NVX SDSK2 Sound Damping

ML16503_SDSK2 big
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Hertz ML1650.3 with Sound Damping

600W Peak (300W RMS) 6.5" Mille Legend Series 4 Ohm Woofers + Grille + NVX SDSK2 Sound Damping

• 600 Watts Max, 300 Watts RMS
• Pressed-pulp cone with cotton fibers cone material
• Neodymium Magnet
• 4 Ohm Impedance
• Sensitivity: 93 dB

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48
List price $1078.74
-6% $1,014.98

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• 600 Watts Max, 300 Watts RMS
• Pressed-pulp cone with cotton fibers cone material
• Neodymium Magnet
• 4 Ohm Impedance
• Sensitivity: 93 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
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    • Owner's manual
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    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
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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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