Model Number: UD12D4
Size: 12 in.
RMS/MAX Power: 450W / 900W
Recommended Power Range: 100 to 450 watts
Cold Rolled Steel Basket
Cast Aluminum Magnet Heat Sink
Frequency Response: 28Hz – 500Hz
SPL at 1W / 1m: 93 dB
Mounting Depth: 6.18 in.
Voice Coil: 2 in. BAESIV

These subwoofers have been designed with a Great Bang for The Buck approach. Giving high performance, rigid construction and peace of mind that it will last. We have options to meet 450 – 1000 watts of Max Power handling and sizes in 8? 10? and 12? They feature a robust suspension with Santoprene Rubber roll surround and long-lasting CONEX spider. Let’s not forget the motor structure with its integrated heat sink to help dissipate heat from the magnet. All of these to lower distortion and keep everything moving in a linear motion all while keeping your vibe alive.

GENERAL	UD12D4
Size	12"
Impedance (ohm)	Dual 4 ohm
Cone material	Reinforced ultra stiff pressed paper
Surround material	Butyl rubber
Voice coil	2” BAEISV
Ideal sealed box volume (cu ft / litre)	1 / 28.32
Ideal ported box volume (cu ft / litre)	1.54 / 43.61
Port diameter (inch / mm)	3 / 76.2
Port length (inch / mm)	7 / 177.8
Dual voice coil	Yes
Sensitivity (1W / 1mm)	93 dB
Frequency response	28 Hz – 500 Hz
RMS (watts)	450
Peak power handling (watts)	900
Mounting depth (inch / mm)	6.18 / 157
Vas (cu ft / litre)	6.200 ohm: 1.564 / 44.29
Resonant frequency (Hz)	6.200 ohm: 37.113
QTS (Hz)	6.200 ohm: 0.551
Xmax (inch / mm)	6.200 ohm: 0.315/ 8.00

UD12D4 | 12” 4 ohm Ultra Drive Car Audio Subwoofer 900 watts

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