Alpine RS-SB12 R-Series 12" Shallow Preloaded Subwoofer Enclosure 600W RMS Power

Alpine RS-SB12 R-Series 12 Inch Shallow Loaded Subwoofer Enclosure

The Alpine RS-SB12 is engineered for enthusiasts who demand serious low-frequency performance without sacrificing valuable cargo space. Built around Alpine’s R-Series shallow subwoofer platform, this preloaded enclosure delivers powerful, accurate bass from a compact footprint. Designed for modern vehicles with limited mounting depth, the RS-SB12 combines high-output capability with precision control, making it an ideal upgrade for premium sound systems.

• R-Series Performance: Tuned to deliver tight, controlled bass with high output in shallow installations.
• High Power Handling: Capable of handling 600W RMS for sustained, distortion-free performance.
• Shallow Enclosure Design: Maximizes bass output while preserving trunk or cargo space.
• Factory-Tuned System: Preloaded and acoustically optimized for consistent results.
• Durable Construction: Built for long-term reliability in demanding automotive environments.

• Brand: Alpine
• Model: RS-SB12
• Series: R-Series
• Type: Shallow Loaded Subwoofer Enclosure
• Speaker Size: 12 Inch
• Power Handling: 600W RMS / 1800W Peak
• Frequency Response: 26Hz – 200Hz
• Sensitivity: 81 dB
• Impedance: 2 Ohm / 4 Ohm
• Mounting Type: Tabletop Mount
• Connectivity: Wired

• Gen2 DD Linear Magnetic Circuit: Enhances cone control and reduces distortion at high excursion.
• Large 4 Inch Voice Coil: Improves heat dissipation for consistent performance under heavy load.
• Neodymium Magnet: Delivers high motor strength in a compact, shallow design.
• Aluminum Dust Cap: Adds rigidity while improving heat management.
• Steel Mesh Grille: Protects the subwoofer while maintaining airflow and output.
• MDF Enclosure: Rigid construction minimizes resonance for cleaner bass reproduction.

The Alpine RS-SB12 is purpose-built for drivers who want deep, authoritative bass without a bulky enclosure. Whether paired with a dedicated Alpine amplifier or integrated into a high-performance custom system, this R-Series shallow subwoofer enclosure delivers impactful low-end performance, premium build quality, and space-efficient design that fits today’s vehicles with ease.