Home

Explore

View Cart

Deals

Saved

Suggested searches

Plant-based protein powders
Vegan leather handbags
Bedroom decor
Waterproof jackets
Hoodies

Learn more about how we use your data to personalize your experience and ads. Recommendations are for informational purposes only.

Audio Intensity

Proline X PO 10-S DF RSW sealed down-fire enclosure, 30 inches wide by 4.75 inches tall, feet add 1.75 inches. Optimized for Alpine RS-W.

Proline X PO 10-S DF RSW sealed down-fire enclosure, 30 inches wide by 4.75 inches tall, feet add 1.75 inches. Optimized for Alpine RS-W.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Alpine RSW10

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$249.99

Color

Black

Quantity

Product description loading

Product description loading

This is the product description text that will appear here.

Shopping designed around you.

Start selling

For brands

For creators

Build your store

Information

Shop Pay

Help center

Social

X (Twitter)

Instagram

Legal

Terms of Service

Privacy Policy

Your Privacy Choices

Powered by

|

Start selling for free

Language

© Shopify Inc. 2026

Quantity

1

You might also like

Proline X PO 10D-S DF RSW sealed down-fire enclosure, front baffle with two flush-mount cutouts, 30 by 15 inches. Optimized for Alpine RS-W.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Alpine RSW10

A Proline Performance Optimized Series S2 woofer subwoofer enclosure shown on a dark blue background with text detailing its dimensions (19.25 inches by 13 inches) and features.

Audio Intensity

Performance Optimized Wedge Sealed 10" Enclosure | Alpine S2-W10

Proline X PO 10-P DF SW ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Arc Audio SW 10

Proline X PO 8-P W S2 ported wedge, front baffle with gloss black insert and pre-wired leads, 30 by 11.75 inches.

Audio Intensity

Performance Optimized Wedge Ported 8" Enclosure | Alpine S2-W8

Proline X PO 10-S DF thinPRO sealed down-fire enclosure, 30 inches wide by 4.25 inches tall, feet add 1.75 inches. Optimized for Wavtech thinPRO.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Wavtech thinPRO10

Proline X PO 10-P DF X2V2 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Arc Audio X2 V2 10

17% off

Pro Audio Center

RS-W10D4 Alpine 10" R-Series Shallow Thin Profile Subwoofer 600W RMS 4 Ohm DVC

Proline X PO 10D-S DF DMD dual sealed down fire enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Diamond Audio DMD-SH

10% off

TJM Northern Beaches

ALPINE S2-Series 12" Halo Subwoofer Enclosure-S2-Sb12V - S2-SB12V

(1)

A$449.96A$499.95

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Rockford Fosgate Punch P3 Shallow

A black Arc Audio Proline PO 12-S DF SW woofers subwoofer enclosure shown on a wooden background with promotional text overlays.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Arc Audio SW12

A dark gray Proline PO 10-S DF NB2 speaker cabinet shown on a dark brown gradient background with technical specifications and dimensions printed around it, including 30 inches width, 7.25 inches height, and feet adding 1.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Prodigy NB2-10

Proline X PO 12-P DF SW ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 12" Enclosure | Arc Audio SW 12

Tweeters

Stereo Warehouse

Alpine W10S4 10-inch Car Subwoofer

Proline X PO 11-S DF BM11 single sealed down fire enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Down Fire Sealed 11" Enclosure | Stereo Integrity BM-11

A black Proline Performance Optimized Series PO 12-S DF RSW speaker enclosure with a circular cutout, shown on a dark brown gradient background with white and gold text detailing specifications and compatibility with Alpine RS-W Series.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Alpine RSW12

ARC Audio Proline PO 10D-S DF SW woofer enclosure shown on a dark wood background with promotional text. The enclosure is black with two circular driver openings containing white foam, and the image includes branding for Proline and ARC Audio.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Arc Audio SW10

Black rectangular box with a round mirror on a white background

Audio Intensity

Proline X Micro Series 10" Sealed Enclosure - Fits Alpine RSW10

17% off

Pro Audio Center

RS-SB12 Alpine R-Series 12" Shallow Subwoofer Sub Single Loaded Down Firing Enclosure 600W RMS 2 Ohm

$999.95$1,200.00

Proline X PO 10-P DF BLACK ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Arc Audio Black Series 10

A promotional product graphic for a PROLINE X PO 10D-S DFW TW3 performance-optimized vehicle underseat or SUV woofer. The image shows a dark gray rectangular woofer with dimension callouts of 44.

Audio Intensity

Performance Optimized Down Fire Wide Sealed Dual 10" Enclosure | JL Audio 10TW3-D4

Proline X PO 10-P DF TW1 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | JL Audio 10TW1

Proline X PO 10D-S DF W3 sealed down-fire enclosure, 30 inches wide by 8 inches tall, feet add 1.75 inches. Optimized for JL Audio W3.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | JL Audio 10W3v3

A black Proline X woofers PO 10-S DF PS subwoofer box shown at an angle, featuring a circular cutout revealing the internal cone and baffle. The image includes promotional text for the 'Performance Optimized Series' and compatibility with the Morel PS Series.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Morel Ultimo PowerSlim PS104D

Proline X PO 10-P DF W6V3 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | JL Audio 10W6v3

A black Proline X woofers PO 10-S DF MPS subwoofer box shown at a three-quarter angle, featuring a circular opening with a beige inner ring and a red accent. The background is dark with orange glow effects, and text highlights 'Performance Optimized Series' and compatibility with 'Hertz MPS Series'.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Hertz Mille Pro MPS 250

Proline X PO 10-P DF P3S ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Rockford Fosgate P3SD4-10

Proline X PO 10-P DF CWCS ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker CompC10 SVC

Proline X PO 12-S DF W3 sealed down-fire enclosure, front baffle with a single flush-mount cutout, 30 by 15 inches. Optimized for JL Audio W3.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | JL Audio 12W3v3

A black Proline Performance Optimized Series PO 12-S DF TW3 subwoofer enclosure with a circular opening, shown on a dark brown background with product specifications and dimensions.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | JL Audio 12TW3

ResoNix Sound Solutions

4.9

(381)

Close up of the corner of ResoNix Fiber Mat Black Edition automotive sound absorber material

ResoNix CLD Squares sound deadening material for cars with free roller

ResoNix Mega CLD Squares product image with text and free roller

A dark gray Proline PO 10-S DF SW woofer shown on a wooden surface with overlaid dimension labels reading 30 inches wide and 5 inches high, plus marketing text for the Proline Performance Optimized Series and Arc Audio compatibility.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Arc Audio SW10

A Proline Performance Optimized Series S2 woofer enclosure shown on a dark blue graphic background with dimensions labeled 21.97 inches by 15 inches and text describing the sealed wedge design and Alpine compatibility.

Audio Intensity

Performance Optimized Wedge Sealed 12" Enclosure | Alpine S2-W12

Proline X PO 12-P W S2 ported wedge, front baffle with gloss black insert and pre-wired leads, 30 by 15.5 inches.

Audio Intensity

Performance Optimized Wedge Ported 12" Enclosure | Alpine S2-W12

Proline X PO 10-S DF W3 sealed down-fire enclosure, 30 inches wide by 7.56 inches tall, feet add 1.75 inches. Optimized for JL Audio W3.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | JL Audio 10W3v3

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Kicker CompRT

The Stereo Shop

Alpine S2-W10D4 S-Series 10" subwoofer with dual 4-ohm voice coils

Proline X PO 10D-S DF W6 sealed down-fire enclosure, 30 inches wide by 8.56 inches tall, feet add 1.75 inches. Optimized for JL Audio W6.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | JL Audio 10W6v3

PO 10-P DF 310E placeholder

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | DD Audio 310e

Proline X PO 10-P DF P1 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Rockford Fosgate P1S4-10

Proline X PO 10-P DF T1S ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Rockford Fosgate T1S1-10P

Proline X PO 12-S DF XLT single sealed down fire enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | PowerBass XL-1240T

Proline X PO 12-P DF R2S ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 12" Enclosure | Rockford Fosgate R2SD2-12

Proline X PO 10-P DF IDQS ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Image Dynamics IDQS10

Proline X PO 12-S DF MPS sealed down-fire enclosure, front baffle with a single flush-mount cutout, 30 by 15 inches. Optimized for Hertz MPS.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Hertz Mille Pro MPS 300

Proline X PO 12D-S DF RSW sealed down-fire enclosure, front baffle with two flush-mount cutouts, 30 by 15 inches. Optimized for Alpine RS-W.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 12" Enclosure | Alpine RSW12

A Proline PO 10D-S DF thinPRO woofer enclosure shown at a three-quarter angle on a dark promotional background. The enclosure is black with two circular driver openings containing white foam.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Wavtech thinPRO10

A product information graphic for an Arc Audio Proline PO 10-S DF A subwoofer enclosure. The image shows a black rectangular enclosure with a circular opening on the front, labeled with dimensions of 30 inches by 15 inches.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Arc Audio A10

A dark gray rectangular audio speaker enclosure shown on a dark promotional graphic with dimension labels reading 30 inches wide and 7 inches high, plus text including 'PROLINE' and 'PO 10-S DF T1'.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Rockford Fosgate T1 Slim

A dark gray Proline PO 10-S DF GUS speaker shown on a black promotional graphic with dimensions labeled 30 inches wide and 5.1 inches high, plus feature text and the Proline and ResoNix branding.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | ResoNix GUS-10

A Proline Performance Optimized Series PO 10-S DF TW3 subwoofer enclosure shown on a dark promotional graphic. The enclosure is black with a circular opening revealing a beige interior and a brown wire loop.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | JL Audio 10TW3

The Stereo Shop

Alpine W10S4 10” Subwoofer | 4 Ohm

CT SOUNDS

4.7

(11K)

Proline X PO 10-P DF W0V3 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | JL Audio 10W0v3

Proline X PO 10-P DF CVR ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker CompVR10

PO 10-P DF SL610 placeholder

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | DD Audio SL610

Proline X PO 10-S DF SCX sealed down fire enclosure, front panel on 1.75 inch feet, 30 by 6.9 inches.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Morel Ultimo SCX102

Proline X PO 10-P DF CWCD ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker CompC10 DVC

Proline X PO 10-S DF L7T single sealed down fire enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Kicker Solo-Baric L7T

A promotional product graphic for the Proline PO 12-S DF thinPRO speaker, showing a dark gray rectangular speaker with dimension callouts of 30 inches wide and 5.25 inches high.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Wavtech thinPRO12

Performance Optimized Series woofer enclosure by Proline, part number PO PO 10D-S W R2, designed for Prodigy NBS series. The black double-baffle enclosure features two circular openings with beige acoustic inserts and is shown with dimension markings of 28.5.

Audio Intensity

Performance Optimized Wedge Sealed Dual 10" Enclosure | Alpine R2-W10

A black Arc Audio Proline PO 10-S DF Arc woofers subwoofer enclosure shown on a dark wood background with promotional text overlays.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Arc Audio ARC 10

Proline X PO 12-P W R2W ported wedge, front baffle with gloss black insert and pre-wired leads, 30 by 15.5 inches.

Audio Intensity

Performance Optimized Wedge Ported 12" Enclosure | Alpine R2-W12

Alpine Shallow 10 Inch Subwoofer: Powerhouse Bass in a Space - Saving Design

Audio Intensity

Alpine Shallow 10 Inch Subwoofer: Powerhouse Bass in a Space-Saving Design

(1)

A Proline Performance Optimized Series PO 10D-S DF TW3 double speaker enclosure box, shown with dimensions of 30 inches by 15 inches and a black front panel with two circular speaker cutouts.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | JL Audio 10TW3

Proline X PO 10-P DF ARC ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Arc Audio ARC 10

A dark gray rectangular subwoofer enclosure shown on a black promotional graphic with dimension labels reading 30 inches wide and 7.4 inches high, plus text including PROLINE, Performance Optimized Series, PO 10-S DF MP, and optimized for HERTZ MP Series.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Hertz Mille Pro MP 250

Proline X PO 10-P DF W3V3 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | JL Audio 10W3v3

Proline X PO 10-P DF GOLD ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker Comp GOLD10

Proline X PO 10-P DF CWRT ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker CompRT10

Proline X Performance Optimized dual sealed enclosure for Arc Series subwoofers, front view of both cutouts.

Audio Intensity

Performance Optimized Dual Sealed 10" Enclosure | Arc Audio 10" Arc Series

Proline X PO 10D-S DF XLT sealed down-fire enclosure, 30 inches wide by 5.86 inches tall, feet add 1.75 inches. Optimized for PowerBass XLT.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | PowerBass XL-1040T

A dark gray Proline PO 10-S DF FSE speaker cabinet shown on a dark promotional graphic with dimension labels: 30 inches wide, 6.1 inches tall, and feet adding 1.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Focal Flax Evo P 25 FSE

Proline X PO 12-S DF CompRT sealed down-fire enclosure, front baffle with a single flush-mount cutout, 30 by 15 inches. Optimized for Kicker Comp RT.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Kicker CompRT

Alpine-R2-W10D2/D4-10" (25cm) Subwoofer-masori-kaufen

26% off

Masori | Shop

R2-W10D2/D4

Proline X PO 10D-S W S2 dual sealed wedge enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Wedge Sealed Dual 10" Enclosure | Alpine S2-W10

Pro 12D-P W124ES placeholder

Audio Intensity

2024-2026 Ford F-150/F-250 Behind-Seat Single 10" Enclosure – Loaded with Alpine RSW10

Proline X PO 12D-S W S2 dual sealed wedge enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Wedge Sealed Dual 12" Enclosure | Alpine S2-W12

Proline X PO 10-P DF A ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Arc Audio A-Series 10

Proline X dual 10 inch down fire enclosure for Audiomobile, unloaded, both cutouts showing threaded mounting studs.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Audiomobile GT2

Proline X PO 10-S DF DMD single sealed down fire enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Diamond Audio DMD-SH

A promotional product graphic for the Proline PO 12-S DF A woofers, showing a dark gray rectangular woofer on a wooden floor with dimension callouts of 30 inches wide and 6.8 inches high.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Arc Audio A12

Proline X PO 10-S DF NB3 sealed down-fire enclosure, 30 inches wide by 6.25 inches tall, feet add 1.75 inches. Optimized for Prodigy Audio NB3.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Prodigy NB3-10

Proline X PO 10-P DF W1V3 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | JL Audio 10W1v3

Proline X PO 10-P DF CVT ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Kicker CompVT10

Proline X PO 10D-S DF MPS sealed down-fire enclosure, three-quarter view of both flush-mount baffle openings and the side terminal cup. Optimized for Hertz MPS.

Audio Intensity

Performance Optimized Down Fire Sealed Dual 10" Enclosure | Hertz Mille Pro MPS 250

A black Proline P0 10-S DF CompRT speaker cabinet shown at an angle with a circular cutout revealing the internal wood and foam. The image includes marketing text for the 'Performance Optimized Series' and compatibility with 'Kicker Comp RT Series' on a dark background.

Audio Intensity

Performance Optimized Down Fire Sealed 10" Enclosure | Kicker CompRT

Proline X PO 10-P DF NB2 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Prodigy NB2-10

A dark gray Proline PO 12-S DF Arc woofer shown on a wooden surface with overlaid dimension labels reading 30 inches wide and 5 inches high, plus marketing text for the Proline Performance Optimized Series and Arc Audio compatibility.

Audio Intensity

Performance Optimized Down Fire Sealed 12" Enclosure | Arc Audio ARC 12

Proline X PO 10-P DF IDv4 ported down fire enclosure, front panel on 1.75 inch feet, 31 by 7.75 inches.

Audio Intensity

Performance Optimized Down Fire Ported 10" Enclosure | Image Dynamics ID10 V4

Performance optimized design tailored for Alpine RSW10 subwoofer ensures maximum efficiency and sound accuracy
Shallow V-groove and dado langboard Elite MDF construction provides airtight, vibration-dampened enclosure
Shortest enclosure in the line at 4.75 inches for optimal under-seat installation
Pre-installed polyfill and plush black carpet shell offer superior sound insulation and durability
Universal fit accepts any subwoofer clearing the published cutout, with woofer-specific mounting and magnet clearance

Summarized by Shop

Proline X Performance Optimized Down Fire 10" Sealed
Cut and tuned for the Alpine RS-W10 Shallow
V-Groove and DadoLangboard Elite MDF0.50 cu ft NetShortest In The Line 0.50cu ft net 1.49system Qtc, D2 32.9-34.1 HzF3 rolloff 4.75 incabinet height Performance, Performance Optimized, and Micro
Proline X builds three tiers of

Net Enclosure Volume: 0.50 cu ft
Cabinet Height: 4.75 in (down fire position)
Footprint: 30 x 15 in (universal), 21.5 x 14.5 in (compact per driver)
Material: Langboard Elite MDF, 3/4 in, with plush black carpet shell
Mounting: 8-32 threaded inserts, stainless machine screws included
Warranty: 1 year limited

Summarized by Shop

Returns accepted within 30 days

Exclusions may apply. See full policy

Audio Intensity

4.9 (191)