Proline X

Professional Series Ported 10" Enclosure | NVX VCW10v3

Q: Do I need a subsonic filter?

Yes, at 28 Hz, 24 dB per octave. Below tuning a vented box stops loading the cone and excursion runs away toward DC. With the filter in place this cabinet puts the NVX VCW10v3 at 53 percent of its usable travel at 1200 W.

Q: Would a sealed box be better for me?

Below about 26 Hz, yes. The sealed wedge we build for it is louder down there by up to 5.1 dB, because a sealed box rolls off gently into the subsonic region where a vented one falls away steeply once it is under tuning. Above that this alignment is the louder of the two for the same power. The Performance Graphs tab plots this cabinet, 1.41 cubic feet vented at 35.5 Hz, against the 1.20 cu ft sealed wedge we build for this driver (PO 10-S W VCW), so you can see exactly where they cross.

Q: How does the front port work?

It is a vertical slot beside the woofer, the full height of the cavity, 2.25 inches wide and 28.1 square inches. It runs 8.00 inches to the back wall and turns once along it for 19.78 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 24.0 metres per second at 1200 W, 51 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 15.4 metres per second against the 17 metres per second threshold where a slot starts to chuff.

Q: What does the price cover, and how does it ship?

50 lb, 30.00" W x 14.00" H x 14.00" D external. Every Professional cabinet is priced the same way, by its size: this one is 3.40 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 50 lb parcel and checkout adds nothing. Do not add polyfill; it ships dry on purpose.

Q: Is the VCW10v3 included?

No. This is an enclosure only, cut for the NVX VCW10v3 specifically: the 9.650 inch cutout, the 6.300 inch mounting depth allowance and the 1.41 cubic foot alignment all come from NVX's published parameters. It fits both coil versions (D2 and D4), and the cabinet was checked against both. Bring your own driver.

SKU: Pro 10-P VCW

QUICK SPECS

Alignment: 1.41 cu ft net vented at 35.5 Hz. F3 28.6 Hz anechoic, 5.83 dB passband ripple
Driver: NVX VCW10v3 D2/D4, 1000 W RMS, 22.0 mm Xmax, 27.30 Hz Fs
Build: Front-firing standard box, 2.25" three-layer baffle with the woofer flush-mounted in the outer layer, NVX logo acrylic, dado joinery, 28.1 sq in front slot port beside the woofer with one bend along the back wall, port and excursion gated at 1200 W
Cabinet: 30.00" W x 14.00" H x 14.00" D, 50 lb, threaded inserts pressed into the baffle on the published 10.240 inch bolt circle

Shipping Included No freight charges at checkout on US orders. International orders are quoted live carrier rates at checkout.

Built in Tennessee CNC cut from 3/4" Langboard Elite MDF. V-groove and dado joinery.

Advanced Terminal Cup Built in-house. ABS/Carbon Fiber. Stainless steel hardware. Copper ring terminals.

$ 434.99

In Stock and Ready to Ship

Financing available. Choose Shop Pay Installments at checkout.

Complete Your System

Wavtech Wavtech link1000.1mini 1000w monoblock amplifier $ 399.99

Professional Series Ported 10" Enclosure | NVX VCW10v3

$ 434.99

More enclosures cut for NVX subwoofers: NVX Subwoofer Boxes

Enclosure Type Ported

External Dimensions 30.00" W x 14.00" H x 14.00" D

Gross Volume 2.27 cu ft

Net Volume 1.41 cu ft

Tuning Frequency 35.5 Hz

Port Area 28.1 Square Inches

Shipping Weight 57 lbs

INSTALLER'S TAKE

I built this box for one VCW10v3 on the full Professional chassis: three layers of baffle with the frame flush in the outer one, and a slot port that runs along the back wall to put 35.5 Hz in a 14.0 inch deep box.

One cabinet serves both coils. It was solved so the VCW102v3 (D2) and the VCW104v3 (D4) each pass every velocity, excursion and ripple gate in the same box.

NVX publishes the bolt circle, so the threaded inserts are pressed at the shop and the screws are in the box.

1000 watts RMS by NVX's rating. The D2 wires to 4 ohms in series or 1 ohm in parallel; the D4 to 8 ohms series or 2 ohms parallel. The Performance Optimized wedge is the smaller and cheaper box, and I try it first for every driver. I could not make its port keep up with the VCW10v3: the calmest port that fits that envelope goes noisy at about 781 watts, under what this coil is rated to take, so I did not sell you that box.

It ships dry. Do not add polyfill to a ported box. Set your subsonic filter at 28 Hz.

Product Details

Proline X Professional 10" Ported

One VCW10v3 in a front-firing box, vented at 35.5 Hz on a three-layer flush-mount baffle

1.41 cu ft net Tuned 35.5 Hz F3 28.6 Hz 2.25" three-layer baffle Cut for the VCW10v3 Built in Tennessee

1.41cu ft net

35.5Hz tuning

28.6Hz F3 anechoic

28.1sq in port area

Why this driver is vented at 35.5 Hz

The VCW10v3 is NVX's 10 inch at 27.3 Hz, a Qts of 0.56, 24.5 litres of Vas and 1000 W RMS. This cabinet gives it 1.41 cubic feet net behind a 2.25 inch three-layer baffle, vented at 35.5 Hz through a 28.1 square inch slot beside the woofer, for an anechoic F3 of 28.6 Hz in a 30 by 14 by 14.0 inch front-firing box.

Sealed, the VCW10v3 needs 1.46 cubic feet net to reach a Qtc of 0.707. Vented, it trades that for deeper extension. The slot is gated at 1200 W, 1.2 times NVX's rating: the channel runs 24.0 m/s and the mouth 15.4, and the cone peaks at 11.7 of its 22 mm with the subsonic filter in place.

What makes it Professional

Three-layer baffle, flush mount

Three layers of 3/4 inch Langboard Elite make a 2.25 inch front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it carry the mounting hardware and the load.

NVX logo acrylic

A glossy black acrylic insert with the NVX mark sits in the outer layer beside the woofer. It is standard on every Professional cabinet.

Mounting

Threaded inserts pressed into the baffle on the published 10.240 inch bolt circle, stainless machine screws included.

Port gated at 1200 W

The 28.1 square inch slot beside the woofer is sized so the channel runs 24.0 metres per second and the mouth 15.4 metres per second at 1.2 times the driver's rating, under the 17 metres per second where a slot starts to chuff. The channel runs 8.00 inches along its wall and turns once along the back wall for another 19.78 inches, which is why a 35.5 Hz tuning fits a 14.00 inch deep box.

Why this is a Professional build

Every driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The VCW10v3 did not clear the port gate there. The calmest wedge port that fits that envelope is 18.4 square inches at 28.5 by 10.00 by 14.91 inches, and its mouth runs 19.2 metres per second at 1000 W against the 17 metres per second line where a port starts to chuff. That port would stay clean to about 781 W. The slot on this box reaches 28.1 square inches and holds the mouth at 15.4 metres per second at 1200 W.

What the price covers

Every Professional cabinet is priced the same way, by its size: this one is 3.40 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 50 lb parcel and checkout adds nothing.

The cabinet

30.00" W x 14.00" H x 14.00" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. Inside the 30 by 14 Professional envelope for a single 10, 14.0 inches deep. 11.06 inch frame, flush in the outer baffle layer, 9.65 inch cutout, 6.30 inches of mounting depth. It ships as a parcel.

NVX publishes a full Thiele-Small table for the VCW102v3 and VCW104v3 in its owner's manual and on the product pages, with a one-way Xmax of 22 mm, the driver displacement and the bolt circle, so nothing on this page is estimated. NVX's D2 and D4 columns for the VCW10v3 disagree on Vas by 19 percent, and each coil's own product page confirms its own column, so the cabinet is solved on both and passes on both. Tuning includes a 1.5 Hz fold loss that is an estimate, not a bench measurement.

The numbers to respect

Set a 28 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in place the cone reaches 11.7 mm of its 22.0 mm at 1200 W.

Enclosure Specifications

Series	Proline X Professional
Driver-Specific Fitment	NVX VCW10v3 D2/D4 (Dual 2 Ohm or Dual 4 Ohm)
Enclosure Type	Ported \| Front-Firing Standard Box
External Width	30.00 Inches
External Height	14.00 Inches
External Depth	14.00 Inches
Internal Volume (Gross)	2.27 Cubic Feet
Internal Volume (Net After Displacement)	1.41 Cubic Feet
Port Type	Vertical Slot Beside The Woofer \| Front Exit \| One 90 Degree Bend Along The Back Wall
Port Geometry	2.25 x 12.50 Inches, 28.1 Square Inches, 33.78 Inches Of Path
Port Area	28.1 Square Inches
Port Tuning (Fb)	35.5 Hz
Port Mouth	1/2 In Roundover On All Four Edges, 43.9 Square Inches At The Face
Port Air Velocity	24.0 m/s In The Channel, 15.4 m/s At The Mouth, At 1200 W (17.0 m/s Chuff Threshold)
Design Power Basis	1200 W RMS (1.2 x The Driver Rating) For Port Velocity And Excursion
Predicted F3	28.6 Hz (Anechoic)
Passband Ripple	5.83 dB (Anechoic)
Subsonic Filter	28 Hz High-Pass, 24 dB/Octave - REQUIRED On A Vented Enclosure
Driver Fs	27.30 Hz
Driver Qts	0.560
Driver Qes / Qms	0.630 / 5.500
Driver Vas	24.500 Liters / 0.865 Cubic Feet
Driver Sd	369.8 Square Centimeters
Driver Re	3.2 Ohm
Driver Xmax	22mm (One-Way)
Driver Displacement	0.15 Cubic Feet (Published by NVX)
Driver Sensitivity	82.0 dB
Driver Power Handling	1000 Watts RMS
Driver Overall Diameter	11.060 Inches (NVX Spec)
Mounting Depth Required	6.300 Inches (NVX Spec)
Cutout Diameter	9.650 Inches (NVX Spec)
Flush Mount Recess	12.000 Inches In The Outer Layer
Material	Langboard Elite 3/4" MDF
Construction	ShopSabre CNC / Two Windowed Braces Front To Back Either Side Of The Woofer
Joinery	Dado Joinery (CNC-Cut), Flat Panels
Front Baffle Construction	Three 3/4" MDF layers, 2.25" total \| Woofer Flush-Mounted In The Outer Layer
Baffle Layers	3
Acrylic	Glossy Black NVX Logo Insert, Outer Layer, Standard
Mounting Hardware	Threaded Inserts On The Published 10.240 In Bolt Circle \| Stainless Machine Screws Included
Voice Coil Configuration	Dual 2 Ohm
Terminal Cup	Proline X ABS/Carbon Fiber Composite \| Back Panel, Terminal-Cup Side \| 12g OFC Pre-Wired
Damping	None - Ships Dry. Polyfill Detunes A Ported Enclosure
Recommended Power	700-1000 Watts RMS (NVX Rated: 1000W RMS)
Carpet Finish	Plush Black
Shipping Weight	57 lb
Shipping	UPS Ground Parcel, Included In The 48 States
Bundle Options	Enclosure Only (Bring Your Own NVX VCW10v3)
Warranty	2-Year Limited (Enclosure)
Manufactured	Tullahoma, Tennessee, USA

Performance Graphs

Net airspace

1.41

cu ft

Tuning

35.5

Hz · Fb

Half power

28.6

Hz · F3, anechoic

Xmax at

4229

W RMS · 28 Hz subsonic

With NO filter

743

W RMS · unfiltered

Port

15.4

m/s at the mouth · 1200 W

01Is this driver right for a ported box?

Efficiency bandwidth product places the motor before anything else is decided.

EBP = Fs ÷ Qes = 43.3

NVX VCW102v3 D2 · EBP 43.3

Under 50 the raw number leans sealed. The NVX VCW102v3 D2 reads 43.3, so this is a ported build against the grain of its own EBP: it works because the alignment is tuned for in-car response rather than for an anechoic curve, and because the cabinet holds port area and volume the driver can actually use.

02What the box does to it

1.41 cu ft net against a 24.5 L Vas, vented at 35.5 Hz.

Fb = 35.5 Hz · F3 = 28.6 Hz · passband ripple 5.83 dB

NVX VCW102v3 D2 · Fb 35.5 Hz, F3 28.6 Hz

Anechoic, before any cabin gain, with the 28 Hz subsonic filter already applied. The vent takes over below 36 Hz and the cone stops doing the work there, which is what holds travel down at the bottom of the passband.

03Perceived Ported vs Sealed

This cabinet, 1.41 cu ft net vented at 35.5 Hz, against the 1.20 cu ft sealed wedge we build for this driver (PO 10-S W VCW).

Ported Fb 35.5 Hz · the 1.20 cu ft sealed box runs Qtc 0.73, Fc 36 Hz

Ported · this cabinet, 1.41 cu ft, Fb 35.5 HzSealed wedge we build, 1.20 cu ft, Qtc 0.73

Shaded blue is where the ported alignment is louder for the same power, orange where the sealed one is. The sealed curve is the 1.20 cu ft sealed wedge we build for this driver (PO 10-S W VCW), not this cabinet with the port blocked: two different boxes, because that is the choice a buyer actually has. Across 25 to 60 Hz the vent is worth 7.7 dB at its widest and 4.7 dB on average. This is the anechoic picture, which is not what you hear in a car.

04Real World Ported vs Sealed

The same two boxes with cabin gain applied, 45 Hz corner, 18 dB ceiling.

Flatness across 25–60 Hz: ported 5.9 dB spread, the 1.20 cu ft sealed box 4.4 dB

Ported, in-car · 5.9 dB spreadSealed wedge we build, 1.20 cu ft, in-car · 4.4 dB spread

Cabin gain lifts both boxes by the same amount, so the gap between them does not change: what changes is the shape each one ends up with. A car pressurises below roughly 45 Hz, which fills in the sealed box's shallower rolloff and over-drives it where the ported box is already flat. Across 25 to 60 Hz, the band kick and bass fundamentals occupy, this alignment holds 5.9 dB of spread against 4.4 dB for the 1.20 cu ft sealed wedge we build for this driver (PO 10-S W VCW). The sealed curve is flatter on paper; the ported one trades that for output. Note where the curves cross. Below about 26 Hz the sealed alignment becomes the louder of the two and stays louder all the way down, by up to 5.1 dB: a sealed box rolls off gently into the subsonic region where a vented one falls away steeply once it is below tuning and the vent stops contributing. If the content you are chasing lives below 26 Hz, a sealed alignment reaches further down than this one does. Cabin gain here is a house assumption, not a measurement of your vehicle.

05The watts that reach Xmax (in this enclosure)

Travel scales with the square root of power, so there is one wattage that puts the cone exactly on NVX's published 22.0 mm. The two traces are the same cabinet with the subsonic filter switched on and switched off.

P_Xmax = 4229 W with a 28 Hz subsonic · 743 W with none → the filter is worth 5.7×

4229 W · subsonic at 28 Hz, 24 dB/oct743 W · no subsonic filterXmax 22.0 mm one-way, published

Each trace touches the limit and no further, because each is drawn at the exact power that puts the cone on 22.0 mm. With a 28 Hz subsonic that takes 4229 W, reached first at 27 Hz. Take the filter away and the same cabinet reaches 22.0 mm on 743 W — the filter is worth 5.7× the safe power. A vent unloads the cone below tuning, so there is nothing holding it once the box stops loading: on a sealed build a subsonic filter is an improvement, here it is required equipment. The unfiltered trace is still rising where this chart stops at 20 Hz, so treat 743 W as a bound rather than a floor. Every wattage on this page is a MECHANICAL limit, not an electrical one. It is the power at which the cone runs out of linear travel in this cabinet, and nothing more. What the voice coil can dissipate as heat is a separate ceiling set by the driver, not by the box — NVX rate this one at 1000 W RMS, and that is the number that binds first here: heat stops you before travel does, so treat 1000 W as the ceiling and the travel figures above as headroom. Final wired impedance, amplifier output and how long you hold the level are all electrical questions this graph does not answer.

Woofer Details

The VCW10v3 is the 10 inch in NVX's VC-Series v3: a carbon fiber enhanced non-pressed paper cone on a custom high roll foam surround with black nylon stitching, a 3.0 in voice coil, and a 165 oz triple stacked high energy Y35 ferrite motor, rated 1000 W RMS by NVX. NVX publishes the full Thiele-Small table, the displacement and the bolt circle for it in its owner's manual. This enclosure is cut for 6.30 in of mounting depth and a 9.65 in cutout, taken from NVX's published figures rather than measured off a sample. Where a rating below carries no reference condition, that is because the maker does not state one, and it is left as they print it.

Driver	NVX VCW10v3
Coil Options	Dual 2 Ohm or Dual 4 Ohm
Voice Coil Diameter	3.0 in
Coil Wire	4-Layer High Temperature Black Aluminum
Cone	Carbon Fiber Enhanced Non-Pressed Paper Cone
Surround	Custom High Roll Foam Surround with black nylon stitching
Spider	Dual progressive-roll spiders
Lead Wires	integrated flat-braided leads
Basket	Die cast aluminum vented basket
Motor	165 oz. Triple Stacked High Energy Y35 Ferrite with protective rubber boot
Cooling	Optimized high-velocity pole vent; One-piece T-Yoke with integrated gap venting
Power, RMS	1000 W
Power, Peak	2000 W
Sensitivity	82 dB, 1W/1m
Mounting Depth	6.30 in
Cutout Diameter	9.65 in
Frame Outside Diameter	11.06 in
Driver Displacement	0.150 cu ft

Materials

Material

Built From a Spec Sheet, Not a Sales Sheet

Every Proline X Professional Series enclosure is CNC-cut from Langboard Elite MDF, 3/4" (18mm) panels produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure, because we chose the material based on those numbers, not on price or availability.

Langboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.

Specifications

Langboard Elite MDF: Published Mill Data

Property	Value	Why It Matters
Panel Stock	Langboard Elite MDF	Named, verifiable panel source, not generic "high-density MDF"
Thickness	3/4" (18mm)	Industry standard for subwoofer enclosures; panels below this flex under pressure
Density	48.5 lbs/ft³	Higher density = less porosity, better screw retention, reduced resonance
Internal Bond	200 psi	Measures resistance to delamination under sustained internal pressure. The most enclosure-relevant spec on this sheet
Modulus of Rupture (MOR)	4,200 psi	Bending strength before the panel breaks, relevant for larger unsupported baffle spans
Modulus of Elasticity (MOE)	410,000 psi	Stiffness under load; higher MOE means less panel flex under bass pressure, less resonance
Face Screw Holding	325 lbs	How firmly the panel surface holds a screw; critical for baffle joint integrity over time
Edge Screw Holding	250 lbs	Panel edge retention, relevant for every joint that isn't face-to-face

Internal Bond

200 psi: The Number That Actually Matters for Enclosures

The internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually. The symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. 200 psi internal bond is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.

Stiffness

410,000 psi MOE: Less Flex, Less Resonance

The modulus of elasticity measures panel stiffness, its resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. 410,000 psi stiffness combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level, not the panel level. The bass you hear comes from the driver, not the box.

Screw Holding

325 lb Face / 250 lb Edge: Joints That Stay Locked

Screw holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint, where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. 325 lb face screw holding strength means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Professional Series enclosure is not going anywhere.

Sourcing

Named Panel Stock: Not "Premium MDF"

The phrase "premium MDF" or "high-density MDF" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification. It is a description with no defined standard. Langboard Elite is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.

Why Proline X?

Most enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements, and in how the box holds up two years into daily use.

CNC-Cut to Spec

Panels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.