Description
DS18 DIA-T12.2D
The DIA-T12.2D is a robust 12-inch dual voice coil (DVC) car subwoofer engineered to deliver deep, impactful bass with high power handling and flexible wiring options. Featuring dual 3″ aluminum voice coils, a premium non-pressed paper cone, and a sandblasted aluminum basket supported by a large 120 oz ferrite magnet, this sub offers both durability and sonic depth. With 1000 W RMS and 2000 W peak power handling, it produces rich low frequencies from 20 Hz to 200 Hz, perfect for bass-focused car audio systems. Its 2+2 Ω impedance allows series, parallel, or independent wiring for optimal system matching, and a recommended 80 Hz low-pass crossover helps ensure clean, controlled bass performance. Designed for custom enclosures and serious bass lovers, the DIA-T12.2D delivers powerful low-end performance with reliability and precision.
Specifications
| Parameter | Value |
|---|---|
| Nominal Diameter | 12″ / 304 mm |
| Nominal Impedance | 2 + 2 Ohm |
| RMS Power Handling | 1000 W |
| MAX Power Handling | 2000 W |
| Sensitivity (1W/1m) | 82 dB |
| Frequency Response | 20 – 200 Hz |
| Recommended Low Pass Crossover | 80 Hz |
Motor & Construction
| Parameter | Value |
|---|---|
| Voice Coil Diameter | 3″ / 76.5 mm |
| Voice Coil Former Material | Aluminum |
| Winding Material | Copper |
| Cone Material | Non-Pressed Paper |
| Dust Cap Material | PPI |
| Surround Material | Foam |
| Basket Material | Aluminum |
| Basket Finish | Sandblasted Black |
| Magnet Material | Ferrite |
| Magnet Weight | 120 oz |
| Displacement Volume | 2.26 L / 0.08 ft³ |
Thiele & Small Parameters
| Parameter | Value |
|---|---|
| Vas (Equivalent Volume) | 22.23 L / 0.785 ft³ |
| Xmax (Excursion) | 24 mm |
| Fs (Free Air Resonance) | 32 Hz |
| Qms (Mechanical Factor) | 3.827 |
| Qes (Electrical Factor) | 0.637 |
| Qts (Total Factor) | 0.546 |
| Mms (Moving Mass) | 418.78 g |
| Cms (Compliance) | 55.6 M/N |
| BL Factor | 11.076 |
| Le (Voice Coil Inductance) | 0.53 mH |
| Sd (Diaphragm Area) | 530.93 cm² |
| Re (DC Resistance) | 1.8 + 1.8 Ohm |
| EBP | 50.2 |
Recommended Enclosures
Sealed Enclosure
| Parameter | Value |
|---|---|
| Internal Volume | 28.3 L / 1.0 ft³ |
| Output Response (F3) | 38 Hz |
Ported Enclosure
| Parameter | Value |
|---|---|
| Internal Volume | 45.3 L / 1.6 ft³ |
| Port Size (W × H × L) | 1.5″ × 11.81″ × 20.43″ |
| Port Size (mm) | 38 × 300 × 519 mm |
| Port Tuning Frequency (Fb) | 34 Hz |
| Output Response (F3) | 27 Hz |
Physical Measurements
| Parameter | Value |
|---|---|
| Overall Diameter | 12.7″ / 323 mm |
| Overall Depth | 8.46″ / 215 mm |
| Front Mount Baffle Cutout | 11.1″ / 282 mm |
| Mounting Depth | 7.03″ / 178.6 mm |
| Motor Diameter | 7.08″ / 180 mm |
Product Overview
12” Dual 3” Voice Coil Subwoofer with Aluminum Basket | 2-ohm
The DIA-T12.2D is built for bass heads. This 12-inch dual voice coil subwoofer packs 1000W RMS and 2000W peak power handling, for hard-hitting low frequencies that make every beat feel alive.
Engineered for Power and Precision
Featuring dual 3” aluminum voice coils and a 2+2 ohm impedance, the DIA-T12.2D offers flexible wiring options so you can tailor your system for MAX output or high-efficiency.
Premium Materials for Maximum Performance
Its sandblasted black aluminum basket is built tough to resist heat and vibration. The large 120 oz ferrite magnet drives extremely large amounts of air for flawless output every session.
Deep Impact
With a frequency response from 20Hz to 200Hz and a recommended low-pass crossover at 80Hz, the DIA-T12.2D delivers earth-shaking lows with precision and clarity!
Built to Fit, Built to Last
Measuring 12.7” in diameter with a mounting depth of 7.03”, this subwoofer fits most custom builds while offering high displacement (2.26L) for powerful sound. It’s ready to handle long sessions and high excursion without breaking a sweat.
Get the most from your low-end with Black Diamond’s DIA-T12.2D!
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