Digital Designs 812d D2 Subwoofer

Features:

Extended Pole Piece with Aluminum Shorting Ring
Hi-Roll Foam EROM Surround
Kevlar Reinforced Nonpress Pulp Cone
4.0″ BASV 4-Layer Flat Aluminium Voice Coil
Quad Layer Deep Bass, High Excursion Spider System
Triple Stack High-Grade Ferrite Magnets, 381oz
Back Plate Voice Coil Gap Venting

Driver Size (Inches): 12
Watts RMS: 1000 – 2000
Peak Power: 6000
Voice Coil Diameter: 4
Impedance: D1 / D2
Fs (Hz): 35
QMS: 4.692
QES: 0.53
QTS: 0.477
Vas (Liters): 24.6
X-Max (MM): 25
Frame OD w/Gasket (Inches): 325mm – 12 51/64
Mounting Diameter (Inches): 288mm – 11-11/32
Mounting Depth (Inches): 243mm – 9-9/16
Motor Diameter (Inches): 236mm – 9-19/64
Motor Depth (Inches): 115mm – 4-17/32
Sealed Enclosure (CuFt): N/A
Ported Enclosure (CuFt):