Proline X Ported Sub Box for 10 inch Subwoofers|Proline X|Audio Intensity

Proline X

Proline X P10-P | Single 10" Ported Subwoofer Enclosure | V3

SKU: P10-P III-G

QUICK SPECS

Best For: Single 10" ported installs — maximum output, extended low-frequency response
Volume: 1.25 ft³ Net
Tuning: 36Hz
Sonic Character: High output, extended low-frequency, ported efficiency

Shipping Included No freight charges at checkout. What you see is what you pay.

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.

$ 199.99

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Proline X P10-P | Single 10" Ported Subwoofer Enclosure | V3

Enclosure Type Ported

External Dimensions 19" x 12" x 16.25"

Net Volume 1.25 ftcu ft

Tuning Frequency 36hz

Cutout Diameter 9.25"

Front Panel Thickness .75"

Max Mounting Depth 7.75""

INSTALLER'S TAKE

The 36Hz tuning on this enclosure hits the right balance for a single 10" ported build. You get strong output through the upper bass and usable extension into the low 30s without pushing port velocity into the range where chuffing becomes an issue. At 1.25 ft³ net the driver has enough room to move efficiently — this is not an undersized ported box that sacrifices output to hit a compact dimension target.
The 7.75" max mounting depth covers most standard 10" drivers. High-excursion competition motors with extended baskets are the exception — measure your driver's published mounting depth before ordering. At 19" wide and 16.25" deep this enclosure fits in most standard trunk setups. The depth is the dimension to watch — 16.25" is deeper than the sealed P10-S, so measure your available trunk depth before committing.

Product Details

Proline X P10-P

Single 10" Ported Subwoofer Enclosure | V3

1.25 ft³ Net 36Hz Tuning Ported Bass Reflex 7.75" Max Depth Langboard Elite MDF Built in Tennessee

Maximum Output From a Single 10". Properly Tuned.

The Proline X P10-P is a single 10" slot-ported enclosure built for installs that need the most output a single 10" driver can produce. At 1.25 ft³ net and tuned to 36Hz, this enclosure gives a 10" driver the air space and port geometry to operate at its efficiency peak — strong output through the upper bass range, usable extension into the low 30s, and a response curve that performs across music genres without being tuned for just one application.

At 19" wide, 12" tall, and 16.25" deep, the P10-P is a dedicated trunk build. The 16.25" depth is the critical dimension — this enclosure requires a trunk installation. It is not a behind-seat option. The 7.75" max mounting depth covers most standard 10" drivers. Port geometry is CNC-cut to exact dimensions — tuning is consistent unit to unit with no hand-cut variance in port length or cross-section.

Every panel is CNC-cut from Langboard Elite MDF to exact internal volume and assembled by hand in our Tennessee facility. A single recessed ABS/Carbon Fiber Composite terminal cup handles wiring, pre-wired with 12g OFC speaker wire. Finish options are Dark Gray Trunkliner or Plush Black. Shipping is included.

Why Ported at 36Hz for a Single 10"

A sealed 10" at 0.70 ft³ produces accurate, controlled bass with a flat response. The P10-P trades some of that precision for significantly more output and lower frequency extension — the correct tradeoff when the install goal is impact and room-pressurizing bass rather than strict accuracy. The ported alignment at 36Hz pushes the efficiency peak into the upper sub-bass range where the majority of bass content in music lives, and where a single 10" in sealed alignment cannot compete on output.

At 1.25 ft³, the P10-P gives the driver enough room to breathe in a ported alignment without the box becoming too large for a standard trunk install. Port velocity stays controlled at this volume — no chuffing, no audible port noise at real-world listening levels. The driver is operating in its correctly-sized ported range and the port is sized to match.

Extended Low-Frequency Output

Ported alignment at 36Hz extends usable bass output significantly lower than the sealed P10-S. The P10-P produces audible, impactful output well below 40Hz — output levels the sealed version cannot approach at the same amplifier power level.

Higher Efficiency Per Watt

Ported enclosures convert amplifier power to acoustic output more efficiently than sealed designs near the tuning frequency. More output from the same amplifier — a meaningful advantage when running modest power levels from a compact monoblock.

Reduced Driver Excursion at Tuning

At and near 36Hz, the port handles the acoustic load and driver excursion drops significantly. Less mechanical stress on the driver at the frequencies where 10" drivers are most vulnerable to over-excursion at high power levels.

36Hz — Balanced and General-Purpose

36Hz provides strong output through the upper sub-bass without port velocity issues on a properly sized 10" enclosure. A genre-agnostic tuning point that performs across hip-hop, rock, and electronic equally without being optimized for any single use case.

Construction: CNC-Cut Port Geometry, Consistent Tuning Every Unit

The P10-P uses the same Langboard Elite MDF and V-groove and dado joinery construction as every enclosure in the Proline X Performance Series. The port geometry — length, cross-section, and position — is CNC-cut to exact dimensions on the same ShopSabre routers that cut every panel. Tuning frequency does not vary between units.

Langboard Elite MDF — Named, Verified, Documented

Every panel is cut from Langboard Elite MDF — 3/4" (18mm), a named, mill-documented panel stock produced in the United States. The specifications below are pulled directly from Langboard's published mill data.

Langboard Elite — Published Mill Data

Density: 48.5 lbs/ft³ — higher density means less porosity, better screw retention, and reduced resonance

Internal Bond: 200 psi — resistance to delamination under sustained bass pressure cycling

Modulus of Elasticity: 410,000 psi — panel stiffness under load; less flex means less resonance

Face Screw Holding: 325 lbs — baffle hardware stays locked under vibration

Edge Screw Holding: 250 lbs — joint integrity at every panel edge connection

V-Groove and Dado Joinery

Every panel joint uses V-groove and dado joinery — CNC-cut interlocking grooves that mechanically lock panels before adhesive is applied. Port panels are joined with the same interlocking geometry as the enclosure walls — airtight, consistent, and resistant to shear forces at the joint level. Every seam is mechanically locked before adhesive is applied.

In-House ABS/Carbon Fiber Composite Terminal Cup

The terminal cup is built in-house at our Tennessee facility. The ABS/Carbon Fiber Composite recessed cup features stainless steel hardware, aluminum landing plates, and copper ring terminals, pre-wired with 12g OFC speaker wire. The recessed mount protects terminals from cargo contact. Copper ring terminals provide a clean, corrosion-resistant connection that does not loosen under vibration.

CNC-Cut Port Geometry

Port length, cross-section, and position are machine-cut to exact dimensions. Tuning frequency is consistent unit to unit — no hand-cut variance in port dimensions means the P10-P performs identically across every unit produced.

Hand-Assembled in Tennessee

Every enclosure is hand-assembled at our Tennessee facility and inspected before it ships. No overseas manufacturing. No batch assembly shortcuts.

Dark Gray Trunkliner or Plush Black

Both finish options are professionally applied. Dark Gray Trunkliner blends with factory trunk materials. Plush Black delivers the traditional aftermarket look. Both are durably bonded for long-term wear.

Shipping Included

No freight charges at checkout. The price you see is the price you pay. The enclosure ships assembled and ready to install.

Fitment Guide

The P10-P is a dedicated trunk build. At 19"W x 12"H x 16.25"D, the 16.25" depth makes this a trunk floor enclosure — not a behind-seat option. Measure your available trunk depth before ordering.

Dimensional Specifications

External Dimensions: 19" W x 12" H x 16.25" D

Net Internal Volume: 1.25 ft³

Tuning Frequency: 36Hz

Subwoofer Cutout: 9.25"

Max Mounting Depth: 7.75"

Front Panel Thickness: 0.75" Single Baffle

Driver Compatibility

The P10-P accommodates any 10" subwoofer with a cutout diameter at or below 9.25" and a mounting depth at or below 7.75". Verify both dimensions against your driver's published specifications before ordering.

Compatible Drivers

The following drivers are available from Audio Intensity and are compatible with the P10-P:

Prodigy NB2-10D4 → Image Dynamics ID10 V4 → Prodigy NB3-10D4 → Audiomobile GT2 2010 → Prodigy NB5-10D4 → Crescendo Revolution 710 →

Always verify cutout diameter and mounting depth against your specific driver's published specifications before ordering.

Ideal Install Applications

Dedicated Trunk Build

At 19" wide and 16.25" deep, the P10-P is a trunk floor enclosure. The 16.25" depth requires dedicated trunk placement — measure your available depth before ordering.

Maximum Single 10" Output

For installs where the P10-S sealed is not enough output — the P10-P is the direct step up. Same driver compatibility, significantly more output and lower frequency extension from the ported alignment.

Daily Driver High-Output Systems

The 36Hz tuning and 1.25 ft³ volume produce a bass response that works across music genres without requiring system-specific tuning. A strong general-purpose single 10" ported build for daily high-output use.

Step Up From 8" Builds

For installs currently running a single 8" ported that need more output and lower extension — the P10-P is the natural progression. More cone area, more volume, more output from a similarly sized trunk footprint.

Maximum 10" Output. Tennessee-Built. Shipping Included.

The Proline X P10-P is a single 10" ported enclosure built to a spec, not a price point. Langboard Elite MDF. V-groove and dado joinery. CNC-cut port geometry. In-house terminal cup. Hand-assembled in Tennessee and inspected before it ships.

If you need the most output a single 10" driver can produce from a standard trunk footprint, this is the correct enclosure. $199.99 Dark Gray Trunkliner. $209.99 Plush Black. Shipping included.

Specifications

Material	Langboard Elite MDF, 3/4" (18mm)
Enclosure Type	Slot-Ported Bass Reflex
Net Internal Volume	1.25 ft³
Tuning Frequency	36Hz
External Dimensions	19" W x 12" H x 16.25" D
Subwoofer Cutout	9.25"
Max Mounting Depth	7.75"
Front Panel Thickness	0.75" Single Baffle
Finish	Dark Gray Trunkliner / Plush Black (+$10)
Terminal Cup	ABS/Carbon Fiber Composite, recessed mount, stainless hardware, copper ring terminals
Wiring	Pre-wired 12g OFC speaker wire
Warranty	1-Year Limited

Materials

Material

Built From a Spec Sheet, Not a Sales Sheet

Every Proline X Performance 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 — 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 Performance 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.