1979-1983 Nissan 280SX - Front Dash Speaker Replacement Package | NVX

Simple plug and play installation, no cutting required

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• Front Dash NVX 4" x 6" Coaxial Speakers
• Plug-n-play Installation

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1979-1983 Nissan 280SX - Front Dash Speaker Replacement Package | NVX

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300W Peak (100W RMS) 4" N-Series 2-Way Coaxial Car Speakers with 20mm Silk Dome Tweeters
Quantity: 1

Product Details:

  • 4" 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: 1.85"
  • Cutout Dimensions: 3.62"
  • Impedance: 4 ohms
  • Frequency Response: 94 - 20000 Hz
  • Sensitivity: 85 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

  • Priced Per Pair

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

Specifications & Details

Front speaker specifications
Top-Mount Depth (Mounting Depth)
2-way Coaxial
Shallow Mount Installation
Tweeter Design
Tweeter Composition
Woofer Composition
Woofer Surround
Nitrile Butadiene Rubber NBR
Peak Power Handling
150 watts
RMS Power Handling
50 watts
86 dB
Frequency Response
94 - 20000 Hz
Cutout Dimensions
4-1/2" x 4-1/2" 
Impedance (Per Voice Coil)
4 ohms
Speaker Grilles
Speaker Size
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details



Model Number:




Internal SKU:


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Customer Ratings & Reviews

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Customer Reviews

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The following review is for NSP4, which is a part of the bundle you are viewing.

I had to replace my cheap, blown out dash speakers in my 88 Toyota pickup. Impressed with the highs and the lows. Had them tweeked with the pioneer head unit until my ears started to feel uncomfortable at times. Really clear sound with these loud little bangers.

By Timmy on April 8, 2014


found this helpful.

Best 4 inch 4 ohm Speakers I've heard!

The following review is for NSP4, which is a part of the bundle you are viewing.

These speakers have the best bass I've heard out of 4 inch speakers!!!

By Marty on March 2, 2015


found this helpful.

Great performance

The following review is for NSP4, which is a part of the bundle you are viewing.

Great amp, I love the size that it comes in so it fits easy almost anywhere. I love the two terminal feature. As long as you have it wired correctly, it barley heats up. Another positive is the connector it comes for lower gauge wire

By De28 on September 17, 2013


found this helpful.

More Greatness!!

The following review is for NSP4, which is a part of the bundle you are viewing.

I replaced my P132's with these and am overjoyed with my purchase! They're cleaner, louder and have a surprising amount of bass! The install was a breeze thanks to my NVX Sound Deadener! Sealed so lovely! My dash is happy now and my volume knob is excited to be able to be turned further than before!! LOL! NVX... Second to None!

By Eliseo on July 9, 2013


found this helpful.


The following review is for NSP4, which is a part of the bundle you are viewing.

The sound is greatthe quality is good and the price excellent!!

By Miguel on April 12, 2015


found this helpful.

Seriously clear and loud

The following review is for NSP4, which is a part of the bundle you are viewing.

NVX is my new brand of choice. I recommend these to people looking for An amazing musical experience. I've ran them off a factory radio, Kenwood decks and amplified them with h 50 W RMS and they impressed me with every setup. For the price NVX is untouchable.

By david on April 30, 2015 checkmarkIcon Verified purchase


found this helpful.


The following review is for NSP4, which is a part of the bundle you are viewing.

These have so far been great speakers, although I didn't install them to perform as well as they would otherwise. If I remember right; the specs on these for freq. response and power handling were the best in this size and at this price point. Very satisfied.

By Joe on July 27, 2015


found this helpful.

Budget price, remarkable quality

The following review is for NSP4, which is a part of the bundle you are viewing.

I purchased these 4" NVX coaxials to replace a pair of worn and rotting 14 year old Rockford Fosgates.

My first impression is that these are phenomenal little speakers. After about a week of breaking them in, the sound is smooth, balanced and detailed; just ever so slightly on the warm side of neutral. Their reproduction feels effortless by comparison to the Rockfords they replaced.

The highs are pleasant and rich without being overwhelming; very natural and present.

The mids are about as much as you could ask for, matching the highs well in both timbre and volume. The detail and neutrality carries through with vocals and instruments alike.

As for bass, there's not much to speak of. I'd call it "better than most" in the 4" class, but don't expect miracles. I have them running on a high-pass filter off the head unit @ 80hz. I've found they have a bit more presence crossed over @ 63hz, but they lose detail as a result.

This review is based on the unit as-shipped and unmodified, but if you're into modding, replace the electrolytic capacitors with a high-quality metalized polypropylene unit. I adjusted the crossover frequency on mine using a 6.8uF cap (the factory unit is a 3.3uF electrolytic), and the difference is phenomenal!

Speakers are installed in the dash of a 1997 Volkswagen Passat, running off a Pioneer head unit, which provides an 80hz digital high-pass crossover. EQ is was flat, with loudness and Sound Retriever disabled.

By Rob on August 18, 2016 checkmarkIcon Verified purchase


found this helpful.

Good speakers

The following review is for NSP4, which is a part of the bundle you are viewing.

Overall, pretty good little speakers. Well made and I expect that they will last. Happy with my purchase.

By Aaron on August 5, 2017


found this helpful.

Excellent speakers for the price

The following review is for NSP4, which is a part of the bundle you are viewing.

Good sound quality. Installed both speakers in my 1993 Toyota Tercel in less than an hour. They replace one blown speaker and another one that had a fault base. The old spacers were dry rotted.

By Carl on May 4, 2017


found this helpful.

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