Precision Front Stage: NVX X-Series 6.5" & 6x9" Component Systems
The NVX X-Series Component Speaker Lineup features the XSP65KIT (6.5"), XSP69KIT (6x9"), and the flagship XQS65KITV2 (6.5" V2).
These speakers are engineered to create a clear soundstage, elevating vocals, instruments, and high-frequency resolution and making it appear as music is playing from your windshield.
The X-Series is NVX’s flagship speaker line-up and it features top-of-the line components, such as woven carbon fiber cones, Neodymium motor assemblies, and oversized silk dome tweeters for ultimate competition-grade precision.
Who Are NVX X-Series Component Systems For?
The NVX X-Series component speaker lineup is engineered for audiophiles and custom builders seeking competition-grade vocal accuracy and a realistic front soundstage:
- Audiophiles & Sound Quality (SQ) Enthusiasts: System builders who want studio-grade vocal realism, smooth treble, and precise imaging that lifts music off the floorboards onto windshield level.
- High-Power Amplified Build Owners: Drivers running external Class-D amplifiers (75W to 150W RMS per channel) who need stiff woven carbon fiber cones that eliminate flex and distortion during high-volume excursion.
- Truck & SUV Owners Needing Heavy Mid-Bass: Drivers with 6x9" front door openings (XSP69KIT) wanting high cone surface area to generate deep, hard-hitting lower mid-bass across large vehicle cabins.
- Custom 3-Way System Builders: Installers who want a modular kit (XQS65KITV2) with switchable crossovers that can easily expand into a full 3-way front stage by adding dedicated Neodymium midrange drivers later.
Why Choose X-Series Speakers?
Upgrading to X-Series component systems replaces cheap OEM paper cones and harsh plastic tweeters with competition-grade materials engineered for fast transient speed and low distortion:
- Authentic Woven Carbon Fiber Cones: Carbon fiber provides an exceptional rigidity-to-weight ratio. Under heavy excursion, carbon fiber woofers eliminate cone flex, producing tight, chest-thumping mid-bass and pristine vocal clarity even at high amplifier volumes.
- True Silk Dome Tweeters (25mm & 30mm): Oversized silk dome tweeters render high frequencies with natural warmth and wide dispersion. Silk domes eliminate harsh, metallic sibilance, allowing trumpet solos, cymbals, and acoustic guitar plucks to sound smooth and non-fatiguing.
- Neodymium & Heavy Ferrite Motor Assemblies: High-density magnets provide strong electromagnetic flux, ensuring rapid cone movement and immediate mechanical recovery during rapid drum fills and complex musical passages.
- Outboard Passive Crossover Networks: External crossovers direct high frequencies exclusively to the silk tweeters and lower frequencies to the midwoofers, preventing acoustic overlap and thermal distortion.
Exploring the X-Series Component Systems
Installer Note: While 6.5" and 6x9" woofers match standard door cavities, mounting depths and factory tweeter locations vary across vehicle trim levels. Always double-check your exact vehicle fitment using the NVX Vehicle Selector on NVX.com to confirm whether you need plastic adapter plates or custom pillar pods before starting your build!
XSP65KIT | 6.5" 2-Way Component Speaker System
- Power Rating: 200W RMS per pair (100W RMS each) / 600W Peak
- Primary Fitments: Universal front door upgrade size for modern sedans, hatchbacks, crossovers, and SUVs.
- Sound Profile: Clean vocal reproduction, tight mid-bass response, and smooth treble extension without metallic sibilance or high-frequency harshness.
XSP69KIT | 6"x9" 2-Way Component Speaker System
- Power Rating: 300W RMS per pair (150W RMS each) / 600W Peak
- Primary Fitments: Full-size truck doors (Ram, Ford F-150, Chevrolet Silverado), large SUVs, and sedan front doors with factory 6x9 openings.
- Sound Profile: Increased mid-bass output and deeper lower-frequency response from the larger cone surface area, paired with clear mid-range and balanced high-frequency detail.
XQS65KITV2 | 6.5" V2 Expandable Component Speaker System
- Power Rating: 300W RMS per pair (150W RMS each) / 600W Peak
- Primary Fitments: Audiophile vehicle builds, custom A-pillar setups, and competition-grade 2-way or 3-way front stages.
- Sound Profile: Fuller mid-range presence and wider high-frequency dispersion enabled by the oversized 30mm tweeter playing lower crossover frequencies with minimal high-volume distortion.
For a detailed look at the basket construction, crossover components, and hardware included with these drivers, watch the NVX XSP65KIT 6.5" Component Speaker Overview. This overview provides a clear physical walk-through of the speaker assembly and mounting hardware.
X-Series Speaker Comparison
| Component | XSP65KIT (6.5") | XSP69KIT (6"x9") | XQS65KITV2 (6.5" V2) |
| System Type | 2-Way Component | 2-Way Component | 2-Way / 3-Way Expandable Component |
| RMS Power (Per Pair) | 200W (100W each) | 300W (150W each) | 300W (150W each) |
| Peak Power (Per Pair) | 600W | 600W | 600W |
| Frequency Response | 40 Hz – 21 kHz | 35 Hz – 21 kHz | 45 Hz – 20 kHz |
| Sensitivity | 92 dB | 92 dB | 93 dB |
| Woofer Cone Material | Woven Carbon Fiber | Woven Carbon Fiber | Woven Carbon Fiber |
| Tweeter Size & Material | 25mm (1") Silk | 25mm (1") Silk | 30mm (1.18") Silk |
| Midwoofer Mounting Depth | 2.52" (64mm) | 3.15" (80mm) | 2.64" (67mm) |
| Crossover Features | Outboard Passive 2-Way | Outboard Passive 2-Way | Switchable 2-Way / 3-Way with Attenuation |
NVX XSP65KIT
600W Peak (200W RMS) 6.5" X-Series 2-Way Component Speakers with Carbon Fiber Cones and 25mm Silk Dome Tweeters
NVX XSP69KIT
600W Peak (300W RMS) 6"x9" X-Series 2-Way Component Speakers with Carbon Fiber Cones and 25mm Silk Dome Tweeters
NVX XQS65KITv2
600W Peak (300W RMS) 6.5" X-Series 2-Way Component Speaker System with Carbon Fiber Cones and 30mm Silk Dome Tweeters
How to Power & Tune Your X-Series Components
Recommended Amplification
To extract the extreme dynamic range, fast transient response, and deep mid-bass capability of real carbon fiber cones, feed X-Series component systems 75W to 150W RMS per channel using a high-output 4-channel Class-D amplifier such as the NVX VADM4 Micro Amplifier.
Recommended High-Pass Filter Crossover Settings
Set your head unit or amplifier's High-Pass Filter (HPF) to:
- 60 Hz - 70 Hz for XSP69KIT 6x9" component woofers
- 70 Hz - 80 Hz for XSP65KIT and XQS65KITV2 6.5" component woofers
Filtering out sub-bass frequencies below 60 Hz–70 Hz protects carbon fiber woofers from mechanical over-excursion, allowing your front stage to play loud, punchy, and distortion-free. This also preserves your speaker voice coils from overheating during extended listening sessions at high volumes.
DIY Tips for Tweeter Placement & System Installation
- Aim Tweeters On-Axis: Use the included angle pods or flush-mount cups to direct silk dome tweeters toward the opposite passenger's ear (cross-firing toward the center of the cabin) to establish a wide, precise soundstage.
- Mount Crossovers in Dry Locations: Secure outboard passive crossover networks inside the dashboard subframe or high inside the door cavity using dual-lock fasteners or zip ties away from window track paths.
- Apply Door Sound Deadening: Applying butyl acoustic damping sheets (such as NVX Sound Deadening) to inner door panels seals panel voids, eliminates plastic door card rattles, and boosts mid-bass output by up to 3 dB.
Frequently Asked Questions
Can I upgrade the XQS65KITV2 into a 3-way system later on?
Yes. The XQS65KITV2 features a specialized external crossover network with a switchable 2-way/3-way input switch. You can start with a standard 2-way setup and add an NVX XQS2 (2.5") or NVX XQS3V2 (3.5") Neodymium midrange driver down the road without buying new crossovers.
What is the advantage of an oversized 30mm tweeter over a standard 25mm tweeter?
The 30mm tweeter in the XQS65KITV2 plays lower in frequency and handles higher power. Its larger surface area allows it to play down toward 2 kHz smoothly, seamlessly blending with the 6.5" midwoofer while providing effortless high-frequency headroom.
Do woven carbon fiber cones produce better mid-bass than polypropylene cones?
Yes. Carbon fiber is significantly stiffer and lighter than polypropylene. This structural rigidity prevents cone flex during heavy volume spikes, yielding faster transient response, tighter mid-bass impact, and lower total harmonic distortion.
Do I need a subwoofer if I install X-Series component speakers?
While X-Series woofers deliver impressive mid-bass punch down to 40 Hz, a dedicated subwoofer is highly recommended. Door speakers are designed for mid-bass and vocals; pairing your components with an NVX BOOST Enclosure or Subwoofer Package handles sub-60Hz rumble for full-range musical impact.