KF740

3-WAY LINE ARRAY MODULE

The KF740 line array system is optimized for the widest possible range of touring and installation applications. With output capabilities resembling the much larger KF760 and a footprint and weight similar to the KF730, the KF740 is the ideal solution for a wide variety of applications.

The KF740 delivers the premium, high output, 3-way performance that is the hallmark of the KF Series in an extremely compact and easy-to-use package. Dual 2.5-in voice coil HF compression drivers and dual 8-in Concentric Summation Array (CSA) loaded MF transducers are integrated through a common horn that occupies the entire face of the enclosure. The astounding pattern control offered by this configuration is extended down to 160 Hz as the MF devices are transitioned to a spaced array of four 2.5-in voice coil 10-in woofers. The pair of LF devices integrated within the MF/HF horn combined with the pair of side-mounted devices provides as much as 18 dB of off-axis rejection. EAW Focusing™ delivered via UX series processors precisely transitions from one system subsection to another while maintaining nearly perfect 90°control.

A full KF740 array provides seamless coverage from directly below the array to hundreds of feet in front. The vertical output can be tailored to match the requirements of any space by varying the splay angle as directed by EAW Resolution™ 2. The resultant configuration produces a coherent wave front of extended-range, high fidelity audio over the entire defined coverage area. The versatile KF740 can be integrated above KF730 modules or beneath KF760 modules to extend the reach of the range to any application imaginable. The impressive low frequency output and extension of the KF740 can be further enhanced by the use of the complementary SB2001 subwoofer. The truck-pack friendly KF740 is assembled in the USA with unrivaled construction details including cabinet grade exterior Baltic birch plywood enclosure, wear-resistant textured coating, powder-coated steel grille and extruded structural aluminum rigging.

Six year loudspeaker warranty.

KF LINE SOURCE VOICING UPDATE Leveraging data and experience from development of Adaptive Systems™ updated Greybox™ processing enhances performance of KF740, incorporating improved equalization, crossover, Focusing™ and limiting parameters for enhanced clarity and tonal balance without physical changes. The latest update also brings EAW DynO™ dynamic optimization (DynO enhancements require EAWPilot v1.2.23 or greater) to the KF740 for increased system protection at high levels, and unprecedented low-frequency headroom. Updated Greyboxes™ are available here.

  • Extremely high output to size & weight ratio. Size and output capabilities allow it to be used in the widest variety of venues
  •  Exceptional pattern control due to symmetrical design, large horn(s) and Phase-Aligned™ woofers
  •  Incorporates latest EAW technologies including CSA™ and Focusing™ for outstanding mid and high frequency transient response and DynO™ dynamic optimization for unprecedented low frequency transient response and headroom
  • Fully compatible with KF760 and KF730 systems.
KF740

The KF740 line array system is optimized for the widest possible range of touring and installation applications. With output capabilities resembling the much larger KF760 and a footprint and weight similar to the KF730, the KF740 is the ideal solution for a wide variety of applications.

The KF740 delivers the premium, high output, 3-way performance that is the hallmark of the KF Series in an extremely compact and easy-to-use package. Dual 2.5-in voice coil HF compression drivers and dual 8-in Concentric Summation Array (CSA) loaded MF transducers are integrated through a common horn that occupies the entire face of the enclosure. The astounding pattern control offered by this configuration is extended down to 160 Hz as the MF devices are transitioned to a spaced array of four 2.5-in voice coil 10-in woofers. The pair of LF devices integrated within the MF/HF horn combined with the pair of side-mounted devices provides as much as 18 dB of off-axis rejection. EAW Focusing™ delivered via UX series processors precisely transitions from one system subsection to another while maintaining nearly perfect 90°control.

A full KF740 array provides seamless coverage from directly below the array to hundreds of feet in front. The vertical output can be tailored to match the requirements of any space by varying the splay angle as directed by EAW Resolution™ 2. The resultant configuration produces a coherent wave front of extended-range, high fidelity audio over the entire defined coverage area. The versatile KF740 can be integrated above KF730 modules or beneath KF760 modules to extend the reach of the range to any application imaginable. The impressive low frequency output and extension of the KF740 can be further enhanced by the use of the complementary SB2001 subwoofer. The truck-pack friendly KF740 is assembled in the USA with unrivaled construction details including cabinet grade exterior Baltic birch plywood enclosure, wear-resistant textured coating, powder-coated steel grille and extruded structural aluminum rigging.

Six year loudspeaker warranty.

KF LINE SOURCE VOICING UPDATE Leveraging data and experience from development of Adaptive Systems™ updated Greybox™ processing enhances performance of KF740, incorporating improved equalization, crossover, Focusing™ and limiting parameters for enhanced clarity and tonal balance without physical changes. The latest update also brings EAW DynO™ dynamic optimization (DynO enhancements require EAWPilot v1.2.23 or greater) to the KF740 for increased system protection at high levels, and unprecedented low-frequency headroom. Updated Greyboxes™ are available here.

  • Extremely high output to size & weight ratio. Size and output capabilities allow it to be used in the widest variety of venues
  •  Exceptional pattern control due to symmetrical design, large horn(s) and Phase-Aligned™ woofers
  •  Incorporates latest EAW technologies including CSA™ and Focusing™ for outstanding mid and high frequency transient response and DynO™ dynamic optimization for unprecedented low frequency transient response and headroom
  • Fully compatible with KF760 and KF730 systems.

Specifications

Subsystem

Transducer: LF – 4x 10 in cone; MF – 2x 8 in. cone; HF – 2x 1.4 in. exit, 2.5 in. voice coil compression driver

Loading: LF – Sealed, Phase Aligned™; MF – Horn-loaded w/CSA™ Aperture; HF – Horn-loaded

Operating Mode

Amplifier Channels: Tri-amp LF, MF, HF

External Signal Processing: DSP w/EAW Focusing

Operating Range (-10 dB, Hz)

50 – 19k

Axial Sensitivity (dB SPL)

LF: 94

MF: 106

HF: 111

Power Handling / Impedance (Watts @ Ohms)

LF: 700 @ 8 (2x)

MF: 625 @ 8

HF: 200 @ 8

Calc. Max. Out Peak (dB SPL)

LF: 131

MF: 140

HF: 140

Calc. Max. Out Long Term (dB SPL)

LF: 125

MF: 134

HF: 134

Nominal Coverage (degrees)

Horizontal: 90

Vertical: 12

Subsystems

LF: 4x 10-in cone, sealed, phase aligned

M: 2x 8-in cone, horn-loaded

HF: 2x 1.4-in exit compression driver, horn-loaded

Versions

KF740P Black 2034762

KF740P White 2034869

KF740P-WP Black 2034763

KF740 Black 0033033

Accessories

KF740 flybar, FB174 / 0033126

KF740 pallet, PLT74K / 0033466

KF740/KF730 to KF760 adapter bar, AB7674-73 / 2034117

KF740 to KF730 adapter bar, AB7473 / 0032870

KF740P Flybar, FB174P / 2036533

KF740 Fly Bar Ground Stack Kit, ACC-GS276 / 0026787

KF740 Spare Pin, QRP2 / 0020558-02

Zero Degree Adapter, ACC-0DEGKF / 2039328

KF740 zero degree adapter use

Dimensions (inches/millimeters)

Height (front): 13.00/330.2

Height (rear): 9.58/243.4

Width: 40.10/1018.5

Depth: 17.56/446.0

Trap. Angle (degrees, top and bottom): 6

Weights (pounds/kilogram)

Net (approx.): 107/48.6

Shipping (approx.): 120/54.4

KF Series SERIES

KF364

passive 3-way full-range loudspeaker

Operating Range

64 – 20k

Calculated Maximum Output Peak

LF: 134, Passive MF/HF: 139, Full Range: 134

Nominal Coverage (degrees)

Horizontal: 60, Vertical: 45

Subsystems

LF: 2x 10-in cone, vented, tuned spacing, MF: 1.4-in cone, horn-loaded, coaxial with HF, HF: 1.4-in exit compression driver, horn-loaded

Powering

Switchable: bi-amplified/passive

Weight (lb. / kg)

65/29.5

Dimensions (imperial / metric)

Height: 25.50/648, Width (front): 13.94/354, Width (rear): 8.86/225, Depth: 17.13/435,  Trap. Angle (degrees per side): 10.15

KF394

passive 3-way full-range loudspeaker

Operating Range

64 – 20k

Power Handling / Impedance (Watts @ Ohms)

LF: 750 @ 8, Passive MF/HF: 150 @ 8, Full Range: 1100 @ 8

Nominal Coverage (degrees)

Horizontal: 90, Vertical: 45

Subsystems

Transducer: LF – 2x 10 in. cone; MF -1x 1.4 in. cone, 3.5 in. coil compression mid; HF – 3x.75 in. exit, 1.75 in voice coil compression driver, Loading: LF – Vented; MF – Horn-loaded; HF – Horn-loaded

Powering

Switchable: bi-amplified/passive

Weight (lb. / kg)

Net: 65/29.5

Dimensions (inches/millimeters)

Height: 25.50/648, Width (front): 13.94/35, Width (rear): 8.86/225, Depth: 17.13/435, Trap. Angle (degrees per side): 10.15

KF720

3-way line array module

Operating Range

75 – 19k

Subsystems

LF: 2x 6-in cone, sealed, phase aligned, MF: 2x 6-in cone, horn-loaded, HF: 6x 1-in exit dome tweeter, horn-loaded

Powering

Bi-amplified

Weight (lb. / kg)

Net: 44/20

Dimensions (imperial / metric)

Height (front): 9.41/239, Height (rear): 4.61/117, Width: 24.00/609, Depth: 14.28/363, Trap. Angle (degrees top and bottom): 6

KF730

3-WAY LINE ARRAY MODULE

Operating Range

60 – 19k

Powering

Bi-amplified

Subsystems

LF: 2x 10-in cone, sealed, phase aligned, MF: 2x 7-in cone, horn-loaded, HF: 2x 1-in exit compression driver, horn-loaded

Weight (lb. / kg)

Net: 77/34.7, Shipping: 85/38.3

Dimensions (imperial / metric)

Height (front): 13.00/330.2, Height (rear): 9.60/243.8, Width: 28.50/723.9, Depth: 17.54/445.6, Trap. Angle (degrees, top and bottom): 6

KF737

3-WAY LINE ARRAY MODULE

Operating Range

60 – 19k

Axial Sensitivity (1W @ 1m, dB SPL)

LF: 91, Passive MF/HF: 107

Nominal Coverage (degrees)

Horizontal: 75, Vertical: 12

Subsystems

LF: 2x 10-in cone, sealed, phase aligned. MF: 2x 7-in cone, horn-loaded, HF: 2x 1-in exit compression driver, horn-loaded

Powering

Bi-amplified

Weight (lb. / kg)

Net: 77/34.7 ,Shipping: 85/38.3

Dimensions (imperial / metric)

Height (front): 13.00/330.2, Height (rear): 9.60/243.8, Width: 28.50/723.9, Depth: 17.54/445.6, Trap. Angle (degrees, top and bottom): 6

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