EAW KF737 specifications Group · S, Features, Description

K F 7 3 7 S p e c i f i c a t i o n s

group · S

3-WAY FULL-RANGE BI-AMP (passive MF/HF filter)

Performance is for a single KF737.

CONFIGURATION

Subsystem

FEATURES

•High-Q brings longer throw capability to KF730 arrays

•Nominal horizontal beamwidth of 75 degrees

•Fits seamlessly within KF730 Series arrays

•Integral light fly hardware of 6061-T6 structural aluminum

DESCRIPTION

The high-Q KF737 enhances the ability of the KF730 Series to deliver concert-level output and performance in an exceptionally wide range of applications. It may be used at the top of a KF730 array to project focused energy over long distances. It may also be used on its own in shoe-box style halls where you want to keep sidewall reflections to a minimum. The KF737, along with low-Q KF730 full range loudspeaker and SB730 subwoofer, is an excellent solution for applications such as houses of worship, corporate A/V, theatres, hotel ballrooms, and concert halls. The system is also ideal for supplemental coverage for larger line arrays, such as the KF760 Series. Such uses include audience side fill, stage lip fill, delayed arrays for balconies, and stage/performer coverage.

One large MF/HF horn fills the entire face of the enclosure, better maintaining horizontal pattern control throughout the MF/HF passband. The curved aperture MF loading slots effectively move the MF acoustic original further into the horn than physical space permits. The side-mounted LF drivers provide a forward-firing, figure-8-type pattern. The drivers are spaced so that the LF beamwidth matches the MF through crossover.

A bi-amplified power configuration (passive mid/high) reduces system cost and complexity. Processing for the arrays is intentionally simple and can be greatly enhanced with the EAW UX8800 dual- mode digital processor, which supplies Gunness Focusing alignment and driver processing algorithms.

The KF737, like the rest of the KF730 Series, offers very friendly truck-pack dimensions. Its rigging system is fully compatible with the KF730 full-range module as well as the SB730 subwoofer. The versatile rigging design fosters fast construction of arrays ranging from 4 to 18 enclosures. Each KF737 includes six QRP2 Quick Release Pins.

LF	Transducer		Loading
	2x	10 in cone	Phase Aligned™
MF	2x	7 in cone	Horn-loaded
HF	2x	1 in exit, 1.75 in voice	Horn-loaded w/Radial
	coil neodymium		Phase Plug™
	compression driver
Operating Mode

Bi-amp	Amplifier Channels	External Signal Processing
	LF, MF/HF	DSP w/2-way filters
PERFORMANCE 1
Operating Range	80 Hz to 20 kHz
Nominal Beamwidth (rotatable)
Horz	75°
Vert	12°
Axial Sensitivity (whole space SPL)
MF/HF	105 dB	230 Hz to 20 kHz
LF	91 dB	80 Hz to 230 Hz
Peak Sensitivity (whole space SPL)
MF/HF	112 dB	20 Hz to 20 kHz
LF	92 dB	20 Hz to 20 kHz
nput mpedance (ohms)

	ominal	Minimum
MF/HF	16	15.9 @ 680 Hz
LF	16	16 @ 250 Hz
Recommended High Pass Filter
High Pass	=>80 Hz, 24 dB/octave
Accelerated Life Test 2
MF/HF	75 V	350 W @ 16 ohm
LF	106 V	700 W @ 16 ohm
Calculated Axial Output Limit (whole space SPL)

	Average	Peak
MF/HF	130 dB	136 dB
LF	119 dB	125 dB
ORDERING DATA
Description		Part Number
KF737 Line Array Loudspeaker - Black		0016014-90
Optional Accessories
FB737 Fly Bar		0006265
PB173 Pull Bar		0008090
QRP2 Quick Release Pins (Spare)		0020558-01
PLT73K Caster Pallet		0006385

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: Preliminary March 2008