This sleek DIA-R12D4 delivers an impressive 1200 Watts Max Power with 600 Watts RMS at Dual 2 or 4 ohm. Once you hear it, you will finally realize what big, rich bass sounds like. Dual Voice Coil provides multiple options and flexibility to wire Parallel, Series, or Independent. Settle for nothing but the best with Ferrite magnets that produce a wider range of tones and can handle tremendous power at high volumes. This ultra-reliable subwoofer has dual voice coils, Kevlar dust cap, and foam edges all at an affordable price. What more can you ask for?


GENERAL SPECIFICATIONS:
RMS Power Handling: 600W
MAX Power Handling:1200W
Nominal Impedance: 2 or 4 OHMS
Sensitivity: (1w/1m): 85.5dB
Frequency Response: 20-300Hz
Recommended Hi Pass Crossover: 1KHz

MOTOR SPECIFICATIONS:
Voice Coil Diameter: 2.5″ / 63.5mm
Voice Coil Former Material: Aluminum
Winding Material: CCAW
Cone Material: Paper
Dust Cap: Paper
Surround Material: Foam
Basket Material: Steel
Basket Color: Black
Magnet Material: Ferrite
Magnet Weight: 100 oz
Displacement Volume: 1.9L / 0.07ft3

THIELE & SMALL PARAMETERS:
Equivalent Volume / Vas: 36.37L / 1.28ft3
Excursion (one way) / Xmax: 13.5mm
Free Air Resonance / Fs: 30Hz
Mechanical Factor / Qms: 4.528
Electrical Factor / Qes: 0.529
Total Factor / Qts: 0.473
Moving Mass / Mms: 237.6g
Compliance / Cms: 0.115 mm/N
Bl Factor / BL: 24.865
Voice Coil Inductance / Le: 0.7106mH
Diaphragm Area / Sd : 471.25 cm2
DC Resistance / Re: 3.6 3.6 ohm

DIMENSIONS:
Overall Diameter : 12.6″ / 320mm
Overall Depth: 7.75″ / 197mm
Front Mount Baffle Cutout: 10.86″ / 276mm
Mounting Depth: 6.6″ / 168mm
Motor Diameter: 6.14″ / 156mm

RECOMMENDED ENCLOSURES:
Sealed Internal Volume: 28.3L / 1ft3
Sealed Box Output Response: F3 45Hz
Ported Internal Volume: 56.6L / 2ft3
Port Size - Square (WxHxLong): 1.18″x12.6″x14.17″ / 30x320x360mm
Port Tunning Frequency: Fb 32Hz
Ported Box Output Response: F3 27Hz