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NVX N-Series Rear Speaker Upgrade Kit

4x6" N-Series 2 Way Coaxial Car Speaker Upgrade Kit for 1999-2006 Silverado 2500 HD

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• Includes a pair of NVX NSP46 4x6" coaxial speakers
• Designed for select 1999-2006 Silverado 2500 HD
• Speaker adapters and wiring harnesses included
• Plug-and-play installation

See compatible vehicles Learn more about the 99-06-chevy-slvrd2500hd-nsf
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2026-07-12 23:59:00
List price $89.97
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-19%

$72.97

 with warranty
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Description


NVX brand icon

Authorized dealer

NVX NSP46

300W Peak (100W RMS) 4x6" N-Series 2 Way Coaxial Car Speakers
Quantity: 1

Product Details:

  • 4" x 6" N-Series 2-way Coaxial Car Speakers
  • Power Handling:
    • Peak: 300 watts per pair / 150 watts each
    • RMS: 100 watts per pair / 50 watts each
  • Polypropylene cone material
  • Nitrile Butadiene Rubber NBR speaker surround
  • 3/4" Silk Dome tweeters
  • CEA-2031 compliant: Yes
  • 1" voice coil
  • Ferrite magnet motor structure
  • Top-mount Depth: 1.81"
  • Cutout Dimensions: 4.01 x 5.90 
  • Impedance: 4 ohm
  • Frequency Response: 90 - 20000 Hz
  • Sensitivity: 86 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

PDF Icon Check out the N-Series Coaxial Speakers Owner's Manual

NVX NSH-4568 Speaker Harness for 1988-2020 Chevrolet, GMC, Buick

Install New Speakers in select 1988-2020 vehicles from Chevrolet, GMC, Buick
Quantity: 1

Product Features:

Metra 82-4602

Universal 4" Speaker Mounting Adapters
Quantity: 1

Product Features:

  • For the installation of 4" aftermarket speakers
  • Adapts 4" aftermarket speakers to 4x6" factory openings
  • Made with high-quality ABS plastic material
  • Painted with black to match factory style finish
  • Universal application, fits in a wide variety of vehicle models
  • Easy installation, no cutting or drilling required
  • Includes (2) speaker adapter plates
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Compatible Vehicles


Please use our Fitment Guide to determine specific compatibility for the submodel and audio features

The vehicle you have selected 1994 Mitsubishi Eclipse is not compatible. Change vehicle or See list of compatible similar products


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Item Details


Manufacturer:

NVX

Model Number:

99-06-CHEVY-SLVRD2500HD-NSF

Weight:

3.67lbs

Internal SKU:

99-06-chevy-slvrd2500hd-nsf

Internal Product ID:

229530

Customer Ratings & Reviews


NVX N-Series Rear Speaker Upgrade Kit thumbnail image

5 star
83%
4 star
17%
3 star
0%
2 star
0%
1 star
0%



Durability
4.9
Value
5
Features
4.8
Design
5
Usability
5

Customer Photos & Videos


Customer Reviews

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good speakers

The following review is for NSP46, which is a part of the bundle you are viewing.

I got 2 sets for my 1988 silverado and they fit with no problem and they sound real good and they look good.

By CARCRZ on January 20, 2014

122 found this helpful


Nice speakers for the price.

The following review is for NSP46, which is a part of the bundle you are viewing.

I bought these to replace the stock, blown dash speakers in a 94 Chevy 1500. They are a little too tall for the speaker grilles to sit flat (the tweeter sits above the speaker about 1/8"), and they slightly interfere with the passenger side defroster vent tube, but that's universal fit for you. They sound good considering they're powered by a stock 20 year old am/fm radio though. I would definitely recommend them as an upgrade from stock speakers.

By Michael on January 10, 2015

115 found this helpful


Great sound!

The following review is for NSP46, which is a part of the bundle you are viewing.

They sound great in my 88 Pontiac Fiero Would purchase again.

By Gerald on January 9, 2015

115 found this helpful


Great Speakers

The following review is for NSP46, which is a part of the bundle you are viewing.

I have a pair of these in my 2003 Cavalier, they bolted right into place, and they sound amazing! Running off headunit, these and my 6x9 NVX speakers in the back make a huge difference over the original speakers! Very impressed with NVX, and will continue to buy their products

By Liam on November 5, 2014

120 found this helpful


Very Good Product!

The following review is for NSP46, which is a part of the bundle you are viewing.

These speakers fit perfectly, sound great, and is very affordable. I would highly recommend this product

By Aurora on November 19, 2014

113 found this helpful


Sound great

The following review is for NSP46, which is a part of the bundle you are viewing.

They really made a great replacement for the stock speakers that go in the dad of a 2000 chevy blazer, and they are cheap, which was a plus. They are also low watt so you can run them off just a head unit.

By Joseph on November 3, 2014

108 found this helpful


good for the money

The following review is for NSP46, which is a part of the bundle you are viewing.

They're not gonna blow you away, but they're nice replacement speakers for the money. Just don't expect them to keep the bass coming when you really crank em. Start to distort. Good sound quality at medium to low volume though. nvx (aka sonic elecronix[yes they own nvx]) makes pretty good stuff.

By Deon on April 7, 2015

89 found this helpful


Nice!!

The following review is for NSP46, which is a part of the bundle you are viewing.

very easy to install, good bit of sound out of such a small speaker. I put these in my front doors of my 2004 Chevy cavalier. I would definitely recommend these speakers!!

By Crystal on May 2, 2015

79 found this helpful


Speakers sound good

The following review is for NSP46, which is a part of the bundle you are viewing.

They are clean and crisp they sound good for what I need them for

By Sam on April 25, 2015

77 found this helpful


Perfect upgrade for 2001 Silverado

The following review is for NSP46, which is a part of the bundle you are viewing.

These 4×6 two way coaxial speakers are built with quality materials and sound great. They are a perfect fit in the B pillar.

By Anonymous on July 21, 2019

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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.