EAW Explore the KF940 Specifications for Exceptional Subwoofer Performance

K F 9 4 0 S p e c i f i c a t i o n s

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DUAL 12 INCH HORN SUBWOOFER

See NOTES TABULAR DATA for details, half space = floor-mounted

CONFIGURATION

	Subsystem	Transducer	Loading
	SUB
		2x 12 in cone	Horn-loaded
	Operating Mode	AmplifierChannels	ExternalSignalProcessing
	Single-amp
		LF1/ LF2	DSP w/1-way filter
	Dual-amp	LF1, LF2	DSP w/1-way filter
	PERFORMANCE 1
	Operating Range	23 Hz to 185 Hz
	Nominal Beamwidth
	Horz	360°
	Vert	360°
	Axial Sensitivity (SPL)
	LF1/LF2 (whole space) 106 dB		22 Hz to 173 Hz
	(half space)	116 dB	22 Hz to 173 Hz
	4x KF940 (whole space)	110 dB	22 Hz to 185 Hz
	Input Impedance (ohms)
	LF1/ LF2	Nominal	Minimum
(shown without grille)		4	4.5 @ 35 Hz

DESCRIPTION

•Extraordinary impact

•High efficiency

•Extended response

The KF940 is a horn loaded subwoofer that provides output levels, frequency response extension, and efficiency completly out of proprotion to its size. Widely known as the SuperSub™, The KF940 is engineerd to be used in arrays of four or more to produce extremely high output sub bass response to the very bottom of the audible spectrum.

To provide the 13-foot horn length needed for the desired enclosure size, EAW Engineers used advaced, bent rather than folded horn technology. Folding creates sharp corners that do not allow the expanding sound wave front to maneuver well above certain frequencies. This reduces output and increases distortion through air turbulence. Bending instead of folding allows all frequencies to easily pass without interference. This minimizes size without minimizing sound quality and output. The two 12-in drivers are specially designed to endure the extreme conditions the SuperSub imposes.

For portability, the KF940 includes balance-optimized handles and a heavy duty, caster pallet that bolts to its rear.

The KF940 is appropriate for any application requiring extremely high output levels of sub bass information. Relatively small SuperSub™ arrays have successfully filled the largest stadiums and arenas with high impact, sub bass information. Applications include stadiums concert tours, nightclubs, raves, dance clubs, houses of worship, corporate A/V, and theatres.

The KF940 is designed to be used with today's sophisticated digital signal processing to optimize the LF response. EAW's MX Series processors are recommended for the required crossover and equalization. Six Year Warranty.

	LF1, LF2		8 (each)	9.1 @ 33 Hz (each)
High Pass Filter
	High Pass		=>24 Hz, 12 dB/octave Butterworth
Accelerated Life Test 2
System	LF1/LF2		80 V	1600 W @ 4 ohm
	LF1, LF2		80 V (each)	800 W @ 8 ohm (each)
Transducer (AES)			1000 W (each)
Calculated Axial Output Limit (SPL)
LF1/LF2 (whole space)			Average	Peak
			138 dB	144 dB
	(half space)		148 dB	154 dB
4x KF940 (whole space)		142 dB		148 dB
ORDERING DATA
Description				Part Number
KF940 Dual 12 inch Subwoofer Black				510655
(Caster Pallet included)
Optional Accessories
None

1To achieve specified performance, the listed external signal processing with EAW-provided settings is required.

2For recommendations to select power amplifier size refer to : “HOW MUCH AMPLIFIER POWER DO I NEED?” on the EAW web site.

Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com

EAW products are continually improved. All specifications are therefore subject to change without notice. Part Number: RD0353 (A) KF940 June 2005