Description
Description
The Trinity B Series 12'' Subwoofer is a 1,500W RMS driver built for bass enthusiasts who want deep, controlled low-end without extensive wiring or upgrades. Its cast basket and all-black aesthetic pair rugged durability with a clean, pro look suitable for high-performance installs.
- 1,500 Watts RMS power handling: Enables sustained high-output bass when paired with a capable amplifier; designed for reliable performance under demanding use.
- 3" high-temperature dual voice coil: Dual 3-inch coils handle power and heat more evenly, helping maintain clarity as output rises.
- 10" spider high-excursion design: Increased cone travel yields deeper, more dynamic bass without sacrificing control.
- Double-stacked motor with FEA cooling: Two-magnet motor and advanced cooling reduce heat buildup during long sessions, preserving efficiency and response.
- Enclosure versatility: ported, 4th order, and 6th order bandpass: Flexible to fit different vehicle volumes and acoustic goals, from deep extension to tight punch.
- Robust cast basket and all-black design: Durable frame with a stealthy appearance that holds up in trunk or cabin installations.
- Recone kits available: Support for restoring performance over time, extending the driver’s service life.
- 1-year manufacturer warranty: Added peace of mind about installation reliability and support.
- Dimensions and fitment: Outer diameter 12.8" | Cutout diameter 11.22" | Mounting depth 7.6" | Displacement 0.25 ft³; helps planning for enclosure and fitment.
- Variant options: B12 D2 and B12 D4: Two voice-coil configurations with shared cone mechanics; electrical specs differ between variants, offering choices for impedance and tuning.
- Sensitivity and key specs: Sd 82.15 in²; Vas ~29.9 L; X-max 18 mm; SPL ~88.7–89.2 dB (1W/1m); BL values differ by variant, guiding amp pairing and enclosure design.
In a real car build, this sub pairs well with a versatile enclosure strategy to maximize bass response while keeping heat in check. Its power handling, heat management, and maintenance options, plus the 1-year warranty, make it suitable for both aspiring bassheads and seasoned installers seeking a durable, high-performance 12" option.
| Driver | B12 D2 | B12 D4 |
| FS | 28.6 Hz | 30.9 dB |
| Re | 1.9 Ω + 1.9 Ω | 3.2 Ω + 3.2 Ω |
| Qms | 6.07 | 5.85 |
| Qes | 0.57 | 0.64 |
| Qts | 0.52 | 0.57 |
| Mms | 410 | 352.1 |
| Cms | 0.08 | 0.08 |
| Sd | 82.15 in2 | 82.15 in2 |
| Vas | 29.9 L | 29.8 L |
| Spl | 88.7 dB | 89.2 dB |
| BL | 22.2 | 26.2 |
| X-max | 18mm | 18mm |
| Outer Diameter | 12.8 in | 12.8 in |
| Cutout Diameter | 11.22 in | 11.22 in |
| Motor Diameter | 7.8 in | 7.8 in |
| Mounting Depth | 7.6 in | 7.6 in |
| Displacement | .25 ft3 | .25 ft3 |
| Coil Dimensions | 3" x 50mm | 3" x 50mm |
| Coil Wire | Black Copper | Black Copper |
| Ferrite Grade | Y35 | Y35 |
| Terminal Wire Gauge | 8ga | 8ga |
| RMS Power | 1,500 | 1,500 |
| Burst Power | 4,500 | 4,500 |






