Description
Description
Delivering 1,500 Watts RMS in a 15-inch form factor, the Trinity B Series Subwoofer is built for bass enthusiasts who want substantial, controlled lows without needing extensive electrical modifications. Grounded in the M and H series heritage, it combines high excursion with a rugged cast basket and a stealth all-black aesthetic for durable, high-performance bass.
- Power Handling: 1,500 Watts RMS capability to drive deep, impactful bass when paired with an appropriate amplifier, while maintaining clarity and precision.
- 3" High-Temperature Dual Voice Coil: Dual coils designed for elevated heat tolerance, supporting sustained power delivery and consistent output under demanding sessions.
- High-Excursion Design with 10" Spider Stack: Increased cone movement enables dynamic bass and higher output in musical transients and game-changing low-end response.
- Double-Stacked Motor with FEA Cooling: Advanced cooling keeps the voice coil cooler during long playtimes, preserving dynamics and reducing thermal compression risks.
- Cast Basket & All-Black Finish: A rigid mounting platform paired with a durable, visually discreet enclosure-friendly look for both install reliability and aesthetics.
- Enclosure Flexibility: Optimized for ported, 4th-order, and 6th-order bandpass boxes to tailor bass response across applications and vehicle spaces.
- Coil Variants: Two coil configurations are offered—B15 D2 and B15 D4—providing different electrical characteristics (FS, Re, Qts, etc.) to suit various enclosure and amplifier setups.
- Recone Kits & Warranty: Recone kits are available for long-term maintenance, and a 1-year manufacturer warranty provides coverage for peace of mind.
Benefits: In a properly tuned multi-enclosure or single-sub setup, this subwoofer excels in delivering deep, expansive bass without requiring costly or extensive electrical mods. Its compatibility with ported, 4th-order, and 6th-order bandpass designs lets you tailor resonance and impulse response to your vehicle’s cabin. The combination of high-power handling, elevated heat tolerance, and cooling-focused motor design ensures reliable performance during extended listening sessions, while recone options and a warranty support long-term reliability. This makes the Trinity B Series 15" a strong match for bass-focused builds where clarity, control, and adaptability matter most.
| Driver | B15 D2 | B15 D4 |
| FS | 27.4 Hz | 29.1 Hz |
| Re | 1.9 Ω + 1.9 Ω | 3.2 Ω + 3.2 Ω |
| Qms | 4.52 | 5.65 |
| Qes | 0.65 | 0.71 |
| Qts | 0.59 | 0.63 |
| Mms | 481.7 | 420.6 |
| Cms | 0.07 | 0.07 |
| Sd | 124.78 in2 | 124.78 in2 |
| Vas | 68.6 L | 67.4 L |
| Spl | 90.1 dB | 90.6 dB |
| BL | 21.9 | 26.3 |
| X-max | 18mm | 18mm |
| Outer Diameter | 15.55 db | 15.55 db |
| Cutout Diameter | 13.78 in | 13.78 in |
| Motor Diameter | 7.8 in | 7.8 in |
| Mounting Depth | 8.4 in | 8.4 in |
| Displacement | .36 ft3 | .36 ft3 |
| Coil Dimensions | 3" x 50mm | 3" x 50mm |
| Coil Wire | Black CCA | Black CCA |
| Ferrite Grade | Y35 | Y35 |
| Terminal Wire Gauge | 8ga | 8ga |
| RMS Power | 1,500 | 1,500 |
| Burst Power | 4,500 | 4,500 |






