T4 Series 12" Shallow 4-Ohm 2-Pack + Dual 12" Shallow Sealed Enclosure Bundle
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T4 Series 12" Shallow 4-Ohm 2-Pack + Dual 12" Shallow Sealed Enclosure Bundle
T4 Series 12" Shallow 4-Ohm 2-Pack + Dual 12" Shallow Sealed Enclosure Bundle
12" SVC 4-Ohm Shallow Subs, 350W RMS Each, Slim Dual 12" Box, Wiring Kit
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Regular price
$184.85
Sale price
$184.85
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Features
- Shallow 3.7" mounting depth saves space
- High BL motor for tight, punchy bass
- Dual 12" low-profile sealed enclosure
- CEA-rated 350W RMS per sub
- Includes wire, screws, and terminals
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What's Included in the box
- (2) 12" T4 Shallow 4-Ohm subwoofers
- Dual 12" shallow sealed MDF enclosure
- 20 drywall screws
- 20' 14 AWG speaker wire
- (4) spade terminals
SKU: SKU: (2) W12T4S4+RDSM12+K2
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Product Description
A sleek solution for under-seat or behind-seat builds, this shallow kit pairs two T4 12" 4‑Ohm subs with a compact dual sealed enclosure. The aluminum former and vented motor manage heat, while the butyl surround and composite cone deliver disciplined, musical low end. With a space-efficient cabinet and included wiring, it’s a sophisticated path to fuller, cleaner bass in modern cabins.
This Bundle Includes

W12T4S4
The W12T4S4 12" Shallow Mount Subwoofer delivers deep, powerful bass in tight spaces. Its 4-ohm voice coil, ultra-stiff cone, and high gloss dust cap combine style with performance, while the vented core magnet and slim design make it ideal for compact cars, trucks, or motorcycles.
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RDSM12
The RDSM12 dual 12" sealed shallow mount enclosure combines premium USA-made MDF with expert craftsmanship for outstanding sound and durability. Its compact design fits tight spaces, while precision engineering ensures your subwoofers deliver powerful, distortion-free bass. Ideal for custom car audio setups seeking both performance and refined aesthetics.
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K2
The K2 Dual Subwoofer Enclosure Installation Kit includes premium 14 AWG wire, 20 wood screws, and 4 spade terminals for flawless installation. Designed for car, home, or studio use, each component is expertly selected to deliver secure mounting and pure audio, elevating your sound system’s performance and style.
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Features
Space-Savvy Performance
Minimal depth and efficient motor topology achieve impactful bass where space is limited.
Reliable Ratings
350W RMS CEA per driver aligns with premium amplifiers for consistent output.
Focused Low End
0.56 cu ft per side helps maintain transient speed and tonal accuracy.
Quality Materials
Paper composite cone and acrylic dust cap balance stiffness and smooth response.
Quick, Clean Install
Complete wiring hardware supports secure, low-resistance connections.

Technical Specifications
- Type of Product Dual 12" shallow car subwoofer system with sealed enclosure
- Subwoofer RMS 350 W each (CEA)
- Impedance Single 4 Ω per sub
- Mounting Depth 3.7 in (sub)
- Cutout Diameter 10.98 in (sub)
- Enclosure Type Dual shallow sealed, 0.56 cu ft per chamber
- Enclosure Dimensions 13" H x 36" W x 5.25" D (box)