Black Diamond DIA-CARBON15.1D 15" High Excursion Carbon Fiber Subwoofer 3500W RMS - 7000W MAX | 2-Ohm DVC - Competition-Grade Pro Audio Subwoofer for Extreme Bass

Specifications

Nominal Diameter: 15" / 381mm
Nominal Impedance: 1+1 Ohm
RMS Power Handling: 3500W
MAX Power Handling: 7000W
Sensitivity (1w/1m): 84dB
Frequency Response: 10-200Hz
Recommended Low-Pass Crossover: 60Hz

Features

Improved Heat Dissipation: Yes
Cone Shape: Conic
Speaker Terminals: Push Terminals 4ga

Motor

Voice Coil Diameter: 3.5" / 89mm
Voice Coil Former Material: Aluminum
Winding Material: CCAR
Cone Material: Carbon Fiber
Dust Cap Material: Carbon Fiber
Dust Cap Size: 7" / 180mm
Surround Material: Foam
Spider Diameter: 9" / 228mm
Leads Connection Type: Spider Crossed
Basket Material: Aluminum
Basket Color/Finish: Aluminum/Black
Magnet Material: Ferrite
Magnet Weight: 425 Oz

Thiele & Small Parameters

Equivalent Volume: Vas 27.22L / 0.961ft3
Excursion (one way): Xmax 22.5mm
Free Air Resonance: Fs 37Hz
Mechanical Factor: Qms 4.72
Electrical Factor: Qes .93
Total Factor: Qts 0.78
Moving Mass: Mms 571.9g
Compliance: Cms 31.57mm/N
BL Factor: BL 23.96
Voice Coil Inductance: Le 1.85mH
Diaphragm Area: Sd 779.3cm2
DC Resistance: Re 2+2 Ohms
Efficiency Bandwidth Product: EBP 39.7

Recommended Enclosures

Sealed Internal Volume: 70L / 2.5ft3
Sealed Box Output Response: F3 35Hz
Ported Internal Volume: 113.2L / 4ft3
Port Size *Square (WxHxLong): 3"x15"x22.4"
Port Tunning Frequency: Fb 32Hz
Ported Box Output Response: F3 27Hz

Measurement

Overall Diameter: 15.5" / 394mm
Overall Depth: 12.75" / 324mm
Front Mount Baffle Cutout: 14.15" / 360mm
Mounting Depth: 10.9" / 277mm
Motor Diameter: 9" / 230mm

• Massive Power for Ground-Shaking Bass - Dominate the lows with an insane 3500W RMS / 7000W MAX power handling��engineered for high-performance car audio systems that demand maximum SPL. This 15-inch subwoofer is built for bassheads who want competition-level output and deep, earth-rattling frequencies
• Advanced Motor Design with 425 Oz Ferrite Magnet - Unleash high-efficiency output and unmatched control with a 3.5" aluminum voice coil, carbon fiber cone, and a 425 oz ferrite magnet. The spider-crossed leads and improved heat dissipation ensure reliability even during extended high-power sessions
• Precision-Optimized Tuning & Performance - Achieve tight, accurate bass with Thiele/Small specs like a 0.78 Qts, 22.5mm Xmax, and 38Hz Fs. Ideal for sealed or ported enclosures (2.5�C4 ft3), this sub hits subsonic lows as deep as 25Hz��perfect for sound quality and SPL lovers alike
• Built Tough with Premium Carbon Fiber Components - Lightweight yet ultra-rigid carbon fiber cone and dust cap provide strength without distortion. Coupled with an aluminum black basket, high-strength foam surround, and 4-gauge push terminals, this sub is designed for aggressive builds and clean installs
• Enclosure-Ready with Versatile Mounting Dimensions - At 15.5�� total diameter and just 10.9�� mounting depth, this sub fits most standard 15" enclosures. Whether you��re building a sealed or ported box, the included port dimensions (Fb: 32Hz) and enclosure volume recommendations make system design simple