Edge Red Storm Series Shallow-Mount Car Subwoofers – 12 Inch Low-Profile Design for Custom Enclosures, Glass Fiber Cone, Foam Surround, 2" ASV Voice Coil, Dual 4Ω, Sealed Box Optimized – 1200W Peak（RSW12D4）.



① Deep, Distortion-Free Bass from a Rigid Glass Fiber Cone
The Red Storm 12-Inch subwoofer features a lightweight yet stiff glass fiber cone that resists flexing even at high excursion, delivering clean, accurate low-frequency response with minimal harmonic distortion. Paired with a high-roll foam surround, it ensures excellent linearity and durability across thousands of cycles – so your bass stays tight and punchy, not muddy or boomy.

② High-Power Handling with Reliable Thermal Management
Built around a 2-inch ASV (aluminum-clad copper) voice coil and a 55 oz ferrite magnet, this subwoofer handles serious power without overheating. Rated at 300W (12") RMS continuous power, with peak power handling reaching 1200W respectively – giving you ample headroom for dynamic music passages without worrying about coil burn-out.

③ Shallow-Depth Design – Perfect for Custom Enclosures
With mounting depths of just 120mm (12"), these subwoofers are purpose-built for tight installation spaces where full-depth subs simply won't fit. Whether you're building a custom fiberglass kick-panel box, a spare-tire well enclosure installation, the low-profile basket design gives you the flexibility to create impressive bass in vehicles with limited mounting depth – without sacrificing performance.

④ Dual Voice Coil Flexibility – Match Any Amplifier
Each model is available in D2 (dual 2Ω) or D4 (dual 4Ω) configuration, allowing you to wire in parallel for maximum amplifier output (1Ω or 2Ω load) or in series for safer, higher-impedance operation (4Ω or 8Ω). This versatility ensures compatibility with virtually any monoblock or multi-channel amplifier on the market – just choose the version that fits your system.

⑤ Precision-Tuned for Sealed Enclosures – Proven T/S Parameters
Engineered with carefully optimized Thiele-Small parameters – including Fs as low as 34Hz (RSW12D2 model) and 32Hz (RSW12D4 model), Qts values ranging from 0.42 to 0.58, – these subwoofers are specifically designed to excel in compact boxes. Recommended net volumes are 37L (12"), with simple fill guidelines to fine-tune the bass response to your taste. Choose the 12" for chest-pounding low-end down to 34Hz.