EAW Dual 12-Inch Horn Subwoofer KF940 Specification Sheet

K F 9 4 0 S p e c i f i c a t i o n s
(shown without grille)
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.
1 To achieve specified performance, the listed external signal processing with EAW-provided settings is required.
2 For recommendations to select power amplifier size refer to : "HOW MUCH AMPLIFIER POWER DO I NEED?" on the EAW web site.
EAW products are continually improved. All specifications are therefore subject to change without notice.
Eastern Acoustic Works One Main Street Whitinsville, MA 01588 tel 800 992 5013 / 508 234 6158 fax 508 234 8251 www.eaw.com
DUAL 12 INCH HORN SUBWOOFER
See NOTES TABULAR DATA for details, half space = floor-mounted
CONFIGURATION
Subsystem
Transducer
SUB 2x 12 in cone
Operating Mode
Amplifier Channels
Single-amp LF1/ LF2
Dual-amp LF1, LF2
1
PERFORMANCE
Operating Range 23 Hz to 185 Hz
Nominal Beamwidth
Horz 360°
Vert 360°
Axial Sensitivity (SPL)
LF1/LF2 (whole space) 106 dB
(half space) 116 dB
4x KF940 (whole space) 110 dB
Input Impedance (ohms)
Nominal
LF1/ LF2 4
LF1, LF2 8 (each)
High Pass Filter
High Pass =>24 Hz, 12 dB/octave Butterworth
2
Accelerated Life Test
System LF1/LF2 80 V
LF1, LF2 80 V (each)
Transducer (AES) 1000 W (each)
Calculated Axial Output Limit (SPL)
Average
LF1/LF2 (whole space)138 dB
(half space) 148 dB
4x KF940 (whole space) 142 dB
ORDERING DATA
Description
KF940 Dual 12 inch Subwoofer Black
(Caster Pallet included)
Optional Accessories
None
group · S
Loading
Horn-loaded
External Signal Processing
DSP w/1-way filter
DSP w/1-way filter
22 Hz to 173 Hz
22 Hz to 173 Hz
22 Hz to 185 Hz
Minimum
4.5 @ 35 Hz
9.1 @ 33 Hz (each)
1600 W @ 4 ohm
800 W @ 8 ohm (each)
Peak
144 dB
154 dB
148 dB
Part Number
510655
Part Number: RD0353 (A) KF940 June 2005