The amplifier module and any audio equipment connected to it (mixing consoles, processors, etc.) must be properly connected to the AC power distribution, preserving AC line polarity. All grounding points should be connected to a single node or common point, using the same cable gauge as the neutral and line cables. Bad grounding connections within an audio system can produce noise, hum and/or serious damage to the input/ output stages in the system’s electronic equipment.

Rear Panel Features:

The KMT12 and KMT18’s switching power supply accommodates AC mains operating at either 115V or 230V. The KMT amplifiers will continue to operate safely, without interruption, provided the AC voltage remains within 90 - 135V or 190 - 250V (230V), at 50 or 60 Hz. Please verify that your AC mains connection is capable of satisfying the power ratings for the device.

1) CH1 Line Input. XLR line level input with +4 dBu sensitivity.

2) CH2 Mic/Line Input. XLR input, with selectable sensitivity for Mic (-30 dBu) or Line (+4 dBu).

3) CH1 Parallel Line Out. XLR parallel output, providing a direct signal from the CH1 Line Input. This output cannot be processed or controlled via the K-Framework software.

4) Phantom Power switch. Turns phantom power (48V) on/off on CH1 and CH2 inputs.

5) Mic/Line switch. Selects CH2 input sensitivity for Mic ( -30 dBu) or Line ( +4 dBu) level.

6) Limiting LEDs. Independent LEDs for the CH1 and CH2 inputs, which blink when the optical limiter engages to protect the corresponding preamp circuit. Limiter threshold is +5 dBu.

7) DSP Out. Auxiliary XLR balanced output, controlled via the K-Framework software. Users can select the signal routed to this output and manage its amplitude and EQ individually.

8) DSP Out Power switch. Turns phantom power (48V) on and off on the DSP out. Phantom power can be engaged to drive additional wireless signal transmitters/receivers.

9) AES/EBU Digital Input. XLR input connector for two-channel AES/EBU digital audio, accepting sample rates from 32 kHz – 96 kHz.

10) AES/EBU Digital Output. XLR output, providing two-channel digital audio from AES/EBU Input, at a sample rate of 48 kHz. This output cannot be processed or controlled via the K-Framework software.

11) REMOTE RS485 Link Input. XLR input for connecting the KMT from another RS485 device in a K-Framework network. RS485 Link Input can also be used to connect a computer running the K-Framework software (requires K-USB USB-to-RS485 adapter).

12) REMOTE RS485 Link Output. XLR output for connecting additional RS485 devices in a K-Framework network.

13) REMOTE USB Input. Connects a computer running the K-Framework software, for remote control of the KMT. Users can manage an entire network of RS485 devices with one PC connected via USB (see RS485 Network diagram, below).

14) Speaker Out. Powered Speakon output, used to drive passive speakers, like a KP series mid-high module or a KMT series passive subwoofer

15) Power switch. Turns the KMT system on and off.

16) AC Input. Powercon input for AC power. See p. 11 for voltage and power requirements.

17) AC Link. Powercon ouput for feeding AC mains power to additional K-array components with a powercon AC input socket.

18) Extension Connector. Multi-pin connector for various K-array extension modules, for wireless control and audio transmission, memory extension, digital signal encoding and audio reproduction.

19) Power On LED. Indicates the system is ON.

20) TOUCH SCREEN Control panel. Provides access to the main functions of the DSP on board

Touch Screen Function:

• 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.
• Input Page - allows users to independently manage the amplitude of all four input channels
• Output Page - allows users to indepedently control the amplitude of  the signal routed to the subwoofer,the speaker output and the XLR DSP Output.
• Routing Page - allow users to manage the routing of the four input channels to the three outputs ( Subwoofer,speaker out and XLR DSP Out) as well independently set output volume and delay for each output.
• Arrow Buttons - provide access to individual routing pages for the Subwoofer,Speaker Out and XLR DSP Out.
• Preset Pages - allow users to load preset stored on-board.The arrow buttons on the top right corner of the screen provide access to the Factory and User preset pages.
• Info Page - contains information about the current softwware and firmware and the Logical ID of the KMT module.
• Delay Page - allows users to independently set the delays for the speaker system (Subwoofer  and Speaker Out)

Physical Dimension: