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KF 740

The KF740 line array system is optimized for the widest possible range of touring and installation applications.High-output, yet extremely lightweight and compact, a KF740 module can integrate seamlessly into an existing KF760 or KF730 system or combine for a complete KF740 array perfect for applications of nearly any size.

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FEATURES

  • 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 spaced woofers.
  • Incorporates latest EAW technologies including CSA and Focusing for improved mid and high frequency transient response.
  • 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:

  • Sealed, Phase Aligned
  • Horn-loaded w/CSA™ Aperture
  • Horn-loaded.

Operating Mode:

  • Amplifier Channels - Tri-amp LF, MF, HF
  • External Signal Processing - DSP w/3-way filters.

Performance:

  • Operating Range: 54 Hz to 20 kHz

Nominal Beamwidth:

  • Horizontal: 90°
  • Vertical: 12°

Axial Sensitivity (whole space SPL):

  • LF  93 dB/50 Hz to 345 kHz
  • MF 107 dB/255 Hz to 1373 Hz
  • HF 110 dB/1220 Hz to 20 kHz.

Input Impedance (ohms):

Nominal:

  • LF 2x 8 (4)
  • MF 8
  • HF 8

Minimum:

  • 4 @ 214 Hz
  • 8 @ 1372 Hz
  • 6.7 @ 5620 Hz

High Pass Filter:

  • High Pass=>40 Hz, 12 dB/octave Butterworth.

Accelerated Life Test:

  • LF 74.8 V/2x 700 W @ 8 ohm(1400 W @ 4 ohm)
  • MF 70.7 V/625 W @ 8 ohm
  • HF 40 V/200 W @ 8 ohm.

Calculated Axial Output Limit (whole space SPL):

Average                   Peak

LF  124 dB                 130 dB

MF 135 dB                 141 dB

HF 133 dB                 139 dB

Physical Dimenstions (H × W × D): 13˝ × 40.1˝ × 17.56˝ 330.2mm × 1018.5mm × 446.0mm.

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