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K-array KA24

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Product Overview

All-in-One KA Amplifier & Processing Solution

The KA24 is a 4 channel per 500W on 4 Ohm. It has 4 fully independent and configurable channels.

The KA24 can be used as a mixer for fixed installations thanks to the microphone and Phantom power options available on every analog IN. 2 GPIO ports give easy external analog controls using K-array accessories.

All DSP functions are remote controlled via the K-framework software over RS485 (3-pin XLR) or integrated USB connector.

Applications

  • Theatrical sound reinforcement 
  • Concert halls, clubs, house of worship 
  • Exhibit audio for museum displays 
  • Cinema and installed AV systems 
  • Touring PA and Monitoring

Features

  • 2000W in just 2 rack units
  • 4 analog IN and 2 AES-EBU IN to 4 fully configurable OUT
  • 2 GPIO for external analog controls
  • Integrated DSP with processing, matrix and delays
  • Onboard touch screen for easy access functions
  • Mic IN and 48V option on all IN for mixer application

Specifications

 

Power Output 

  • Max Power @ 4Ω: 4 x 500 W(1) 
  • Max Power @ 8Ω: 4 x 250 W(1) 
  • Max Power bridged @ 8Ω: 2 x 1000 W(1) 
  • Minimum impedance: 4 Ω (single channel mode)

 

Audio Specs 

  • Slew rate 8 Ω: 50V/μS (input filter bypassed) 
  • S/N Ratio: N.A. 
  • Distortion (THD + N): < 0.09% 1W to full power @ 4Ω (typically <0.05%) 
  • Input impedance: 10 kΩ balanced 
  • Gain: 32 dB 
  • Output: Unbalanced to ground 
  • Bandwidth: 20Hz 20KHz (+-1dB) 
  • Damping factor: > 10000 @ 100Hz 

 

Protection 

  • Thermal: Yes 
  • Short circuit / over-load: Yes 
  • Clip limit, Analog signal limit: Yes 

 

Audio Input 

  • Analog Connectors: 4 male + 4 female 3-pin balanced XLR 
  • Digital Connectors: 1 male + 1 female 3-pin XLR 

 

Remote Control Input 

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

 

Audio Powered Output

  • Connectors: 2 x 4-pin Speakon NL4 
  • NL4 1 wiring: 1+1- = A1 | 2+2- = A2 
  • NL4 2 wiring: 1+1- = B1 | 2+2- = B2 

 

AC Power 

  • Connector: 2 x PowerCon IN/OUT 
  • Nominal voltage: 100 / 240 V, 50/60Hz with PFC 
  • Operating Range: AC 90V - 264V 
  • Efficiency: >79%(typical) 
  • 1/8 rated power (pink noise)@ 8Ω: 600 W 
  • Thermal dissipation: 1/8 of max output power @ 4Ω = 621 BTU/h, 1/4 of max output power @ 4Ω = 1154 BTU/h 

 

Certification 

  • IP: 20 

 

Physical 

  • Dimensions: 426 mm x 304 mm x 88.2 mm (19.1“ x 12” x 3.5 “) 
  • Weight: 5.5 Kg (12.12 lb)

Product Downloads

  • KA24 Data Sheet PDF 0.6 MB
  • KA24 User Manual PDF 4.2 MB
  • KA24 K-Framework 2 User Guide PDF 3.6 MB

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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the KA24.