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6.5" 2-Way X-Series Component Car Audio Speaker System

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6.5" 2-Way X-Series Component Car Audio Speaker System


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NVX 25 ft. of True Spec 12 Gauge Speaker Wire

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Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.


NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!



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General Features:

  • 6-1/2" X-Series Component System
  • Power Handling:
    • Peak: 460 watts per pair / 230 watts each
    • RMS: 230 watts per pair / 115 watts each
  • Finely Milled Pulp and Egyptian Papyrus Fiber cone material is stiff yet lightweight
  • 29mm Silk Dome tweeter construction offers crisply detailed highs with warm characteristic
  • Dimpled tweeter dome improves the dispersion pattern for improved response
  • Low Damping Rubber speaker surround maintains linear movement better than any other material
  • Included crossovers are engineered to beautifully complement the natural roll-off of the tweeter and midwoofer
  • Copper Shorting Sleeve placed in the air gap between the pole piece and the voice coil former reduces inductance
  • Shorting Sleeve improves power delivery to the voice coil, decreases inductive distortion and improves cone linearity
  • Improved clarity and fidelity at higher notes reduced strain on the surround
  • Ring Radiator design prevents the surround from decoupling at higher frequencies
  • Low Turbulence Cast Aluminum Basket improves airflow to reduce compression of the motor structure
  • Relatively soft spider to reduce unwanted mechanical stiffness
  • Speaker housing designed to improve cone control and reduce back-wave interference
  • Robust Tweeter Chamber helps lower the resonant frequency, greatly improving imaging
  • 3-dimensional cast design dramatically increases the strength and rigidity of the basket
  • Designed to perform optimally in a real car environment
  • 4 ohms impedance
  • Frequency response: 45-22,000 Hz
  • Top-mount depth: 2-15/16"
  • Sensitivity: 90dB
  • Replacement Grills Also Available: NVX XGR665
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Priced Per Complete Component System: 2 midwoofers, 2 tweeters and 2 crossover networks.

Speaker Specifications

This is the manufacturer product line of speakers.
X-Series (NVX)
Priced Per
Car Speakers are typically sold in pairs so you will receive 2 speakers for each speaker purchase on speakers marked "Priced Per Pair". If a speaker is marked "Priced Per Each" then the speaker is sold individually and each purchase you make will result in 1 speaker. High-powered tweeters, midrange and full-range pro audio for car speakers are typically sold per each speaker.
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.
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.
2-way Component System
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.
Tweeter Size
Refers to the size of the tweeter. Typically, smaller tweeters produces less output with higher frequency response.
Tweeter Composition
Materials such as polypropylene, silk, cloth, and paper are the most common, where as many more recent tweeters are now manufactured with composites such as Aluminum, Titanium, Mylar, and other materials.

PEI is an acronym for "Polyetherimide" which is an amorphous, amber transparent, high-performance thermoplastic.

Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Milled Pulp and Egyptian Papyrus
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
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.
460 watts
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.
230 watts
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".
90 dB
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
45 - 22000 Hz
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.
4 ohms
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.

Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Dimensions
Refers to the dimensions of the hole, measured in inches or millimeters, required to contain the speaker.
5-3/4" x 5-3/4" 
Speaker Grilles
A grating or screen of metal or plastic bars or wires, mounted in front of a speaker as protection. If yes, the speakers will include matching speaker grilles. If no, there are no grilles included.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Redding, Ca

I have heard....

September 19, 2013

I have listened to these in a Scion FC and they sounded awesome. Exceptional midbass to clear and airy highs. I only had 5 minutes with them and I could tell that at high volume there would be very little ear fatigue. I have read and heard from many trusted voices in the car audio community that this set is very very similar to ARC RADIO's Black Series components. It's a known fact that NVX makes ABC's high end components but I have not seen or heard them side by side. If this is 90% true, then its an outrageous steal.

21 of 25 found this helpful

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Sherman Oaks, CA

Best sound I have heard.

September 16, 2013

I heard these at Sonic Electronix headquarters in a Dodge Ram. They are some of the best speakers I have ever heard and the tuning on the truck was great too. The accuracy and sound from the tweeters really is great and you get full sound from them since they are 29mm. The mid-woofers were super clean and they had them running active off the amp and a sound processor so I cannot comment on the crossovers in the truck, but they do have them in their store sound board. As soon as I save enough, I will be getting a set.

I recommend you listen to them if you are in the area.

20 of 25 found this helpful

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Springfield Gardens, NY

Verified Purchase
loud and clear

July 4, 2015

these speakers are insanely loud and incredibly clear the best sounding speakers i have ever heard, also they are very well made they worth every cent

16 of 19 found this helpful

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Took the chance, & nailed it!

September 9, 2016

First off, I don't usually provide feedback when asked, sorry.., however, I felt these deserve my honest opinion. I was sceptical at first, but they turned out to be more then a pleasant surprise! (Seeing there still relatively "new" in the car audio world). The components are perfectly matched! Speakers, & cross overs units (they are huge, so planing & placement must be considered befor pulling the trigger on these bad boys) are on par with those costing much much more. ( I know, because I've owned them.) The sonic clarity, strong, & tight punch given are nothing short of near perfection for this price point. They remain so.. crystal clear, even while being driver hard, and at high Vol. I'm not saying they are the best speakers ever made, just the best speakers made for this price point, Period. Strong statement, yes, but my opinion, NVX "X" Series is on par, & surpassing some premium line component 6.5 speakers which I have heard & had installed. In this review, I've only given them 3 stars for durability, as I have only owned them a short time. However, there build & construction appear Excellent.

0 of 0 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

Streetwires 25 ft. of True Spec 12 Gauge Speaker Wire

You need speaker wire to connect your speakers!

Your Price $36.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $20.99

NVX XTGSP2 Tone Generator and Speaker Polarity Tester

Perfect for safely troubleshooting and testing audio systems

Your Price $19.99

Belva Five Piece Installer's Panel Removal Tool Kit

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $15.99

Xscorpion WDCR2 Window and Door Clip Remover

Removes and installs handle and window crank clips.

Your Price $8.99

Universal Wire Puller & Grabber

Running wires has never been easier! This wire puller allows you to run wires through those hard to reach places!

Your Price $7.99

Encore Universal Four Door Power Door Lock Kit

Add Power Door Locking and Unlocking while you have the Door Panels removed

Your Price $29.99

NVX SDDK12 Door Kit

Eliminates speaker panel distortion and reduces door vibration, rattles and squeaks!

Your Price $47.99

Dynamat Xtreme Door Kit 10435

Enough sound dampening to cover most doors!

Your Price $69.97

Stinger Roadkill Door Kit

Use this to eliminate rattle from your doors!

Your Price $39.95

NVX Sound Dampening Rubber Roller

Install your Sound Dampening with ease using this heavy duty rubber roller!

Your Price $7.99

XTC 6-1/2" Round Large Frame, Shallow Foam Speaker Baffles

Creates a tight seal behind speaker for enhanced audio quality.

Your Price $13.84

12-10 AWG Butt Connectors

These yellow butt connectors are ideal when connecting thicker speaker wire your new aftermarket speakers.

Your Price $5.99

12-10 AWG Yellow T-Tap Adapters

Allows for fast and easy splicing of wires by easily tapping into the cable.

Your Price $12.99

12-10 AWG Quick Disconnect Connectors

These yellow quick disconnect connectors make it easy to connect and disconnect speaker wire your to your new aftermarket speakers!

Your Price $11.99

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Browse 4 questions and 5 answers
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Why did you choose this?
Sonic Electronix Store
good reviews
Michael C on Sep 24, 2016
great quality speakers for a great price
Amit P on Nov 7, 2014
Just built some home theater speakers using Tang Band woofers with Fountek Tweeters. Before that, Silver Flute woofers with Dayton Audio tweeters.

Current, no warranty Morel Tempo tweeter died. Here we have a warranty, with the bonus of actual well made components using SB Acoustic drivers. With that brand highly used in Home Audio, I had to jump on these.
James S on Oct 20, 2015
can these be bi amped?
A shopper on Feb 15, 2016
Best Answer: Yes, the crossover has connections built-in to bi-amp
Reply · Report · Doug H on Feb 16, 2016
· Add Answer · I Have This Question Too (6)
Will these speakers fit in a 1995 Honda Civic EX coupe front door? I know they will fit in terms of diameter (6.5 ), but I am not sure if they will fit in terms of depth.
Kyle T on Dec 13, 2014
Best Answer: Hello Kyle,

Thank you for inquiring about your vehicle. Unfortunately, your doors will barely accept a speaker with Top-mount Depth ~1-11/16", making the XSP6KIT not ideal. You are correct, the 6.5" makes them capable of fitting, but will require quite a bit of help to do so.
Reply · Report · Sonic Electronix SStaff on Dec 15, 2014
· Add Answer · I Have This Question Too (2)
Will these speakers fit 2001 Chevy impala?
Fredy on Apr 2, 2016
· Add Answer · I Have This Question Too (0)

Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: NVX XSP6KIT

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