Description
What exact subwoofers does this fit?
This enclosure is driver-specifically engineered and optimized for a pair of 8" Alpine® R-Series subwoofers. It is 100% compatible with the following model generations: R2-W8D2, R2-W8D4, R-W8D2, R-W8D4, SWR-8D2, and SWR-8D4. The cutout diameters are exactly 7.00".
Will it fit in my vehicle?
Yes, it features a practical, streamlined footprint engineered to comfortably accommodate a dual 8-inch high-output setup while keeping a low-profile height profile. It fits perfectly in a wide range of trunks, cargo spaces, and SUVs. The exact external dimensions are 30.00" W x 11.00" H x 15.00" D.
How is the performance and wiring?
This premium pre-fabricated cabinet is engineered to extract the full potential of Alpine's high-excursion R-Series drivers. It features a common internal chamber with a massive 9.50" x 2.50" shared slot port precisely tuned to 34Hz. This layout allows both woofers to load evenly against the shared 1.40 cubic feet of internal airspace, delivering a well-balanced mix of raw sound pressure level (SPL) and audiophile sound quality (SQ). It comes equipped with an upgraded 2" round nickel-plated binding post terminal for high-current, secure wiring connectivity.
Technical Specifications:
What exact subwoofers does this fit?
This enclosure is driver-specifically engineered and optimized for a pair of 8" Alpine® R-Series subwoofers. It is 100% compatible with the following model generations: R2-W8D2, R2-W8D4, R-W8D2, R-W8D4, SWR-8D2, and SWR-8D4. The cutout diameters are exactly 7.00".
Will it fit in my vehicle?
Yes, it features a practical, streamlined footprint engineered to comfortably accommodate a dual 8-inch high-output setup while keeping a low-profile height profile. It fits perfectly in a wide range of trunks, cargo spaces, and SUVs. The exact external dimensions are 30.00" W x 11.00" H x 15.00" D.
How is the performance and wiring?
This premium pre-fabricated cabinet is engineered to extract the full potential of Alpine's high-excursion R-Series drivers. It features a common internal chamber with a massive 9.50" x 2.50" shared slot port precisely tuned to 34Hz. This layout allows both woofers to load evenly against the shared 1.40 cubic feet of internal airspace, delivering a well-balanced mix of raw sound pressure level (SPL) and audiophile sound quality (SQ). It comes equipped with an upgraded 2" round nickel-plated binding post terminal for high-current, secure wiring connectivity.
SlapBox™: The Ultimate Daily Driver
The LAB SlapBox™ isn’t your average prefab. It is a purpose-built, high-performance wind machine designed to get aggressively loud, dig violently low, and take a beating day in and day out.
Built like a tank in the USA from 3/4” CNC-cut MDF, we even upgraded to 1” or thicker front baffles on select heavy-hitting models. We tuned this enclosure right in the golden pocket of 32Hz to 34Hz. That is the undisputed sweet spot for authoritative low-end extension that still maintains a crisp transient response.
If you are chasing SPL numbers on the meter, wanting clean SQ on your commute, or just looking to move some serious air, the SlapBox™ delivers proven, dependable performance and aggressive sound.
SlapBox™ Highlights:
- The Sweet Spot (32-34Hz): Optimal port tuning for playing the lows with authority while keeping your kick drums punchy and tight.
- Overbuilt for Output: 3/4” MDF standard with 1”+ front baffles on select models to support massive high-excursion drivers and heavy daily wattage.
- American Made Muscle: Blends Sound Pressure Level (SPL) output with Sound Quality (SQ) at a price that leaves you budget left over for electrical upgrades.
Technical Specifications:
- Alpine® R-Series dual 8-inch vented SlapBox™ woofer enclosure
- Designed and optimized specifically for a pair of 8" Alpine® R-Series subs (R2-W8D2 / R2-W8D4 / R-W8D2 / R-W8D4 / SWR-8D2 / SWR-8D4)
- Constructed of solid 0.75" CNC-cut high-grade MDF
- Common internal chamber with shared high-velocity slot port
- High-grade black automotive carpet finish
- Upgraded 2" round nickel-plated binding post speaker terminal
- Made in California, U.S.A.
- Enclosure volume: 1.40 ft^3 (net internal airspace)
- Peak tuning frequency (Fb): 34Hz
- Port size: 9.50" x 2.50"
- Sub cutouts: 2x 7.00" Round
- Dimensions: 30.00"W x 11.00"H x 15.00"D
Shipping & Delivery
Free shipping applies to orders $50 and over shipped within the 48 Contiguous U.S. States. Most orders ship the same or next business day. Tracking is included and will be updated upon shipment.
Additional shipping fees are required for all other locations (including but not limited to): PO Boxes, APO/FPO address, AK, HI, PR, Guam, Canada, and other countries outside the USA
We will make every attempt to process and ship orders within 2 business days of your cleared payment. We will contact you, should there be a problem or delay with your order. Please allow proper delivery time for your package to arrive.
Orders via UPS Ground arrive within 2-6 business days. Smaller or lighter weight items typically ship via USPS First Class or USPS Priority Mail.
