SW312TU01


	SW312TU01 is a 4 ohm woofer designed for dedicated automotive subwoofer applications. The extremely stiff aluminium cone, the long linear throw, exaggerated ventilation, and the special dynamic linearization short circuiting rings together makes up for an unusually linear and low-distortion woofer. Even at very high signal levels, the unit behaves controlled and without distortion. Due to low mechanical losses SW312TU01 masters equally well low level details and extreme dynamic requirements. SW312TU01 features an additional spacer that prevents the voice coil from bottoming even if pushed extremely hard in high-SPL competitions.

		FEATURES

Extremely rigid aluminium cone to ensure piston motion at high levels and for better heat transfer at high continuous power levels
Die cast alu chassis with additional spacers for optimal ventilation and increased stroke
Vented cone neck for reduced distortion and compression
Vented chassis for lower air flow speed reducing audible distortion
Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
Large motor system with 2” voice coil diameter and 155mm magnet for better control and efficiency
Black-anodized magnet structure steel parts for increased heat dissipation and power handling
Two built-in alu field stabilizing rings for reduced high-level distortion (see drawing)
Long linear stroke motor for reduced distortion at high levels
Linear suspension with specially designed CONEX damper (spider) for long durability under extreme operating conditions
4-layer voice coil for increased control and better small-cabinet performance


	IMPEDANCE RESPONSE

SPECIFICATIONS

Nominal size	12¼	[inch.]
Nominal impedance	4	[ohm]
Recommended upper frequency limit	200	[Hz]
Recommended cabinet volume (ported design)		[lit.]
Sensitivity, 2.83V/1m, (calculated fromT/S parameters)	89	[dB]
Voice coil diameter	50.95	[mm]
Voice coil height	30.9	[mm]
Air gap height	8	[mm]
Voice coil resistance, R_DC	3.2	[ohm]
Voice coil inductance	0.9	[mH]
Magnet weight		[kg]
Effective radiating area, S_d	472	[sq.cm]
Power handling, continuous, IEC 268-5	250	[W]
Resonance freq., Fs (free air)	23	[Hz]
Moving mass (free air)	205	[g]
Force factor, Bxl	15.1	[Tm]
Mechanical Q, Q_m	20	-
Electrical Q, Q_e	0.42	-
Total Q, Q_t	0.41	-
Suspension compliance, C_ms	0.23	[mm/N]
Equiv. air volume, V_as	72	[lit.]
Total unit net weight		[kg]

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)


	PACKAGING AND ORDERING INFORMATION

Part no. SW312TU01-01

Individual packaging (one piece per box)


	Latest update: Apr. 14, 2012

MORE INFO

12” passive radiator