User manual
K-Array KRX802 Line Array with Mid-High

User Manual for K-Array KRX802 Line Array with Mid-High 12" Coaxial Speaker Element

• Product category: PA Speakers K-Array
• Brand: K-Array
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for K-Array PA Speakers

Product description

• KMT21 Mark I 21" 1600W Powered Subwoofer with DSP The KMT21 Mark I 1600W Powered Subwoofer with DSP from K-array is a complete audio system, featuring a 21” powered subwoofer, programmable on-board DSP, and multiple analog and digital inputs & outputs for creating a broad range of speaker configurations. Equipped with a codec that lowers the signal/noise ratio, the KMT21 Mark I Subwoofer comes with a 5 VDC power connector on the rear panel, and enhanced functionality for creating presets. The AES/EBU output is latency-free (thru).The KMT21 Mark I Subwoofer features an integrated touchscreen that provides intuitive control over the main DSP functions including input/output levels, signal routing, offset delays for subwoofer and speaker output (up to 10 ms, each) and overall system delay (up to 330 ms). All DSP functions, including EQ, can also be remote controlled via software over USB or RS485 (3-pin XLR).The subwoofer further provides two balanced analog line-level inputs and a two-channel AES/EBU digital input. An integrated Class-D amplifier delivers 2 x 2400W at 4 ohms, with a max THD of 1% (EIAJ test @ 1 kHz). The rear panel features multiple analog and digital outputs, including a Speakon output to connect a wide array of passive speakers including Kobra & Python mid-high modules or KMT21P additional passive subwoofers (sold separately). To optimize performance, the on-board DSP includes presets to drive K-array speakers.The KMT21 Mark I Subwoofer’s four-corner port configuration provides symmetrical back-loading to the speakers for extended bass response with low distortion. The port configuration also provides incredible structural strength to the cabinet, despite its light weight. Pocket handles and an M20 thread-mount position for attaching mid-high speakers makes it convenient to use and ideal for medium-throw applications in theaters, concert halls, and audio/video installations.
  General
  • • Compact size, yet strong performance
    • Direct-radiating, long-excursion driver
    • Fast setup and dismantling system
    • Fitted with integrated handles and casters
    • Analog and digital AES/EBU inputs
    • Remote software control over USB and RS485
    • Designed for use with the KP52/KP102 and KMT21P Subwoofer
  Applications
  • • Theatrical sound reinforcement
    • Concert halls, clubs, houses of worship
    • Portable and installed audio-visual systems
    • Cinema and special effects

Also Includes

• 6 x KX12 Compact Coaxial 12" Line-Array Speaker Element (Black)
2 x KMT21 Mark I 21" 1600W Powered Subwoofer with DSP
• Limited 1-Year Warranty
• Extendable Pole
• Stacking Hardware

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Technical parameters

• KMT21 Mark I 21" 1600W Powered Subwoofer with DSP

  Power Handling	1600 W
  Maximum Power	2800 W
  Impedance	4 ohms
  Frequency Range	30 Hz to 150 Hz
  SPL	1 W : 102 dB Maximum: 130 dB (continuous) to 136 dB (peak)

  Type	1 module class D - DSP controlled
  Subwoofer Power Output	2400 W @ 8 ohms 1% THD + NOISE
  Speaker Power	Output: 2400 W @ 8 ohms 1% THD + NOISE
  Protections	Over Temperature (Power Limiting - Thermal Shutdown), Short Circuit/Overload Output Protection, Power Limiting, Clip Limiter/Permanent Signal Limiter, High Frequency Protection
  Frequency Response	20 Hz to 20 kHz (+0 -1 dB) for 1 W @ 8 ohms

  Horizontal/Vertical	Omnidirectional

  Type	Internal DSP controlled
  Frequency	Low pass @ 150 Hz (maximum - preset dependent)

  Type	1 X 21" (53 cm) Neodymium magnet woofer with 4" (10 cm) voice coil

  Connectors	Analog: 2 male + 2 female 3-pin balanced XLR Digital: 1 male + 1 female 3-pin balanced XLR

  Connectors	1 male + 1 female XLR parallel 1 USB B Jack serial converter

  Power Input	100 to 240 VAC at 50 to 60 Hz
  Operating Range	85 to 265 VAC (auto-range)
  Power Factor	>0.90 @ 4 ohms full power
  Consumption	1/8 rated power @ 4 ohms: 600 W

  IP	20 (53 with K-AMPCOVER accessory)

  Dimensions	22 x 22 x 30" (56 x 56 x 76 cm)
  Weight	108 lb (49 kg)

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