Low Frequency Systems and Subwoofers

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4000 Series Cinema LF and
Subwoofer Systems

Low Frequency Systems

4638 Dual 15", 800 Watt Low Frequency System
4648A Dual 15", 1200 Watt Low Frequency System, 4 ohms
4648A-8 Dual 15", 1200 Watt Low Frequency System, 8 ohms

Subwoofers

4641 Single 18", 600 Watt THX^Ž-Approved Subwoofer
4642A Dual 18", 1200 Watt THX^Ž-Approved Subwoofer
4645C Single 18", 800 Watt THX^Ž-Approved Subwoofer

4638
Dual 15" Low Frequency System.

4638 Specification Sheet

	`Low Frequency Drivers:`	`2035H`
	`Frequency Range:`	`30 Hz - 5 kHz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`800 Watts`
	Power Capacity (Continuous Program):	`1600 Watts`
	`Sensitivity:`	`100 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`500 to 800 Hz recommended`
	`Nominal Impedance:`	`4 Ohms`
	`Dimensions (HxWxD):`	`991 x 648 x 451 mm (39 x 25 1/2 x 17 3/4 in)`
	`Net Weight:`	`42.7 kg (94 lb)`


4648A Dual 15" Low Frequency System, 4 ohms.	4648A Specification Sheet

	`Low Frequency Drivers:`	`(2) 2226H`
	`Frequency Range:`	`30 Hz - 1.8 kHz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`1200 Watts`
	Power Capacity (Continuous Program):	`2400 Watts`
	`Sensitivity:`	`100 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`500 to 800 Hz recommended`
	`Nominal Impedance:`	`4 Ohms`
	`Dimensions (HxWxD):`	`991 x 648 x 451 mm (39 x 25 1/2 x 17 3/4 in)`
	`Net Weight:`	`42.7 kg (94 lb)`


4648A Dual 15" Low Frequency System, 4 ohms	4648A-8 Specification Sheet

	`Low Frequency Drivers:`	`(2) 2226J`
	`Frequency Range:`	`30 Hz - 1.8 kHz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`1200 Watts`
	Power Capacity (Continuous Program):	`2400 Watts`
	`Sensitivity:`	`100 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`500 to 800 Hz recommended`
	`Nominal Impedance:`	`8 Ohms`
	`Dimensions (HxWxD):`	`991 x 648 x 451 mm (39 x 25 1/2 x 17 3/4 in)`
	`Net Weight:`	`42.7 kg (94 lb)`


4641 Subwoofer	4641 Specification Sheet
Single 460 mm (18 in) High Power Subwoofer. Approved by Lucasfilm, Ltd. for THX^Ž system installations.

	`Low Frequency Driver:`	`2241H`
	`Frequency Range:`	`25 Hz - 500 Hz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`600 Watts`
	Power Capacity (Continuous Program):	`1200 Watts`
	`Sensitivity:`	`98 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`80-150 Hz recommended`
	`Nominal Impedance:`	`8 Ohms`
	`Dimensions (HxWxD):`	`1010 x 674 x 450 mm (39 3/4 x 26 1/2 x 17 3/4 in)`
	`Net Weight:`	`60 kg (131 lb)`


4642A Dual Subwoofer	4642A Specification Sheet
Dual 460 mm (18 in) Direct-Radiator Sub-Bass System. Two model transducers, exceptional power handling, rigid cone assemblies and VGC^™ magnet structure. Approved by Lucasfilm, Ltd. for THX^Ž system installations.

	`Low Frequency Drivers:`	`(2) 2241H`
	`Frequency Range:`	`22 Hz - 500 Hz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`1200 Watts`
	Power Capacity (Continuous Program):	`2400 Watts`
	`Sensitivity:`	`101 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`80-150 Hz recommended`
	`Nominal Impedance:`	`4 Ohms`
	`Dimensions (HxWxD):`	`762 x 1219 x 610 mm (30 x 48 x 24 in)`
	`Net Weight:`	`98 kg (216 lb)`


4645C Subwoofer	4645C Specification Sheet
Single 460 mm (18 in) High Power Subwoofer. Approved by Lucasfilm, Ltd. for THX^Ž system installations.

	`Low Frequency Driver:`	`2242H`
	`Frequency Range:`	`22 Hz - 500 Hz (-10 dB)`
	Power Capacity (Continuous Pink Noise):	`800 Watts`
	Power Capacity (Continuous Program):	`1600 Watts`
	`Sensitivity:`	`99 dB SPL (1W, 1m, 3.3ft.)`
	`Crossover Frequency:`	`80-150 Hz recommended`
	`Nominal Impedance:`	`8 Ohms`
	`Dimensions (HxWxD):`	`1010 x 674 x 450 mm (39 3/4 x 26 1/2 x 17 3/4 in)`
	`Net Weight:`	`63 kg (138 lb)`

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