Page 1
KMT21 / KMT21 Mark I Ver. 1.3 KMT21 / KMT21 Mark I USER GUIDE English Check the label situated on the back panel of the device to determine if you own a KMT21 or a KMT21 Mark I.
KMT21 / KMT21 Mark I Ver. 1.3 SYMBoLS K-array declares that this device is in compliance with applicable CE standards and regulations. Before putting the device into operation, please observe the respective country-specific regulations! WEEE Please dispose of this product at the end of its operational lifetime by bringing it to your local collection point or recycling center for such equipment.
DSP, multiple analog and digital inputs and outputs for creating a broad range of speaker configurations. The KMT21 Mark I is the newest version of the subwoofer featuring a new amplifier auto range, new codecs that reducte the signal/noise ratio, a 5v dc power connector on the rear panel and enhanced functionality for creating presets.
KMT21 / KMT21 Mark I Ver. 1.3 4. SAfETY INfoRMATIoN Read these instructions - Keep these instructions - Heed all warnings Warning. Failure to follow these safety instructions could result in fire, shock or other injury or damage to the device or other property.
Page 6
KMT21 / KMT21 Mark I Ver. 1.3 WARNING • Since the device is a CLASS I apparatus, it must be only connected to an AC three-wire grounding outlet. If your outlet isn’t grounded, contact a licensed electrician to replace it with a property grounded outlet.
5. UNPACKING Each K-array speaker is built to the highest standard and thoroughly inspected before leaving the factory. Upon arrival, carefully inspect the shipping carton, then examine and test your new amplifier.
115 - 230 V (operating range 90 - 135 V or 190 - 250 V) at 50 to 60 Hz. The KMT21 Mark I’s auto-range power supply feature allows the amp unit to operate safely and with no audio discontinuity when the AC voltage stays within a nominal range of 100 - 240 V (operating range 85 - 265 V) at 50 to 60 Hz.
KMT21 / KMT21 Mark I Ver. 1.3 7.4 PRoTECTIoN CIRCUITRY Both the Power supply and the amplifier sections are equipped with several protection circuits. Power supply protections aim to isolate a faulty section in electrical power system from the rest of the device in order to prevent the propagation of the fault and limit device damages.
KMT21 / KMT21 Mark I Ver. 1.3 7.5 KMT21 MARK I REAR PANEL 5.5 A 2.9 A 14 A 16 A...
Page 12
Power switch. Turns the KMT system on and off. AC Input. PowerCon input for AC power. See p. 11 for voltage and power requirements. AC Link. PowerCon output for feeding AC mains power to additional K-array components with a PowerCon AC input socket.
KMT21 / KMT21 Mark I Ver. 1.3 7.6 KMT21 REAR PANEL...
Page 14
Power switch. Turns the KMT system on and off. AC Input. PowerCon input for AC power. See p. 11 for voltage and power requirements. AC Link. PowerCon output for feeding AC mains power to additional K-array components with a PowerCon AC input socket.
7.7 RS485 NETWoRK The RS485 Link Input and The RS485 Link Output on the rear panel allow to create a network of K-array devices that users can manage with a PC running the K-Framework software. All devices can be linked with standard XLR cable.
Ver. 1.3 8. ToUCh SCREEN fUNCTIoNS 8.1 KMT21 MARK I ToUCh SCREEN fUNCTIoNS The main functions of the onboard DSP can be managed with the integrated touch screen. Functions are grouped into six pages, shown as icons on the Home page.
Page 17
KMT21 / KMT21 Mark I Ver. 1.3 DELAY The Delay page allows users to independently set the delays for the two output channels driving the subwoofer and the speakers connected to the Speaker Out (up to 3.5 mt) and for Channel 1 and Channel 2 input channels (up to 114 mt).
Page 18
KMT21 / KMT21 Mark I Ver. 1.3 PRESET The Preset page allows users to load presets stored on-board. INfo The Info page contains information about the current software and firmware, the current preset loaded and the Board ID of the device.
KMT21 / KMT21 Mark I Ver. 1.3 8.2 KMT21 ToUCh SCREEN fUNCTIoNS HOME PAGE The main functions of the onboard DSP can be managed with the integrated touch screen. Functions are grouped into six pages, shown as icons on the Home page.
Page 20
KMT21 / KMT21 Mark I Ver. 1.3 The Info page contains information about the current software INFO PAGE and firmware, and the Logical ID of the KMT module. Make sure that each device in the network has a different ID number.
• K-array is not responsible for any rigging equipment and accessories that are not manufactured by K-array. It is the user’s responsibility to ensure that the Working Load Limit (WLL) of all the additional rigging hardware accessories is greater than the total weight of the system in use.
Ver. 1.3 10. CoNfIGURATIoNS Mechanically the subwoofer can perfectly match with the K-array mid-high column speakers, such as Kobras, Pythons and Kaymans by using the K-FOOT2 and K-JOINT2 accessories. An excellent example of the use of this combination is the K-array portable system KR402.
11. SERVICE To obtain service: 1) Contact the official K-array distributor in your country. Your local distributor will direct you to the appropriate service center. 2) If you are calling for service, please have the serial number(s) of the unit(s) available for reference.
New materials and design are introduced into existing products without previous notice. Present systems may differ in some respects from those presented in this catalogue. The contents of this manual are furnished for informational purposes only. K-array s.u.r.l. assumes no responsibility for any errors or inaccuracies that may...
Need help?
Do you have a question about the KMT21 and is the answer not in the manual?
Questions and answers