Trinity Audio Dual B Series 15" Subwoofers & LOGIQ-3K 3,000 Watt Monoblock Amplifier
Trinity Audio Dual B Series 15" Subwoofers & LOGIQ-3K 3,000 Watt Monoblock Amplifier is backordered and will ship as soon as it is back in stock.
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Description
Description
The Trinity B Series 15" Subwoofer 1,500 Watts RMS is built for bass enthusiasts who want deep, controlled low-end without extensive electrical mods or premium amplification. Built on the M and H series knowledge, it combines a cast basket, a 3" high-temperature dual voice coil, and a high-excursion design with a double-stacked motor and FEA cooling for reliable, high-output performance.
- 1,500 Watts RMS power handling: Handles continuous bass energy to deliver deep, impactful low end without clipping when paired with an appropriate amplifier.
- 3" high-temperature dual voice coil (D2/D4 variants): Dual coils provide flexible wiring options and improved heat dissipation, helping maintain performance under demanding use.
- High-excursion with 10" spiders: Greater cone movement translates to more dynamic bass and louder output while preserving control and clarity.
- Double-stacked motor design with FEA cooling: Advanced cooling helps keep the voice coil and magnet assembly cooler during extended high-power operation.
- Cast basket and all-black design: Durable chassis with a premium aesthetic that suits high-end builds while resisting rigid service conditions.
- Flexible enclosure compatibility: Optimized for ported, 4th order, and 6th order bandpass boxes to maximize bass response across varied vehicle cabins.
- Recone kits available: Convenient maintenance option to restore original performance over time.
- 1-year manufacturer warranty: Provides coverage for peace of mind on installation longevity.
- Impedance and sensitivity variants: Re: 1.9 Ω + 1.9 Ω (D2) or 3.2 Ω + 3.2 Ω (D4); SPL around 90.1–90.6 dB depending on variant.
In a typical car audio build, this 15" driver offers substantial low-end presence with solid efficiency for its size, thanks to its large radiating area and high BL•S characteristics. The combination of a robust chassis, high-excursion capability, and multiple enclosure options makes it well-suited as a primary bass driver in tuned ported or multi-order enclosures, while the available recone kits and warranty support long-term reliability and performance.
| 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 |
