K-Array Kommander Amplifiers

Introduction

This driver is intended to be used only with K-array KA amplifiers and it was explicitly tested on Ka-18 Amplifier. Please refer to K-array for more info or purchasing https://www.k-array.com/en/contact.

The latest versions of the driver be found on the DriverCentral product page at https://drivercentral.io/platforms/control4-drivers/audio-video/k-array-ka-amplifier.

Features

• Source selection with input routing
• Room volume and mute control
• Source volume and mute control
• USB player transport controls (next, previous, play, pause, stop)
• Player preset selection

Driver Installation

1. Copy the files from the zip package to your Control4 driver location (by default this is Documents\Control4\Drivers).
2. Open Composer and choose the Search tab from the Items pane. Search for K-Array KA Amplifier.
3. Add the K-Array KA Amplifier driver into your Control4 project.
4. Bind the driver’s input, output and room connections for each channel of the amplifier, as needed.

Driver Configuration

Properties

Driver Status

• Driver Version - Reports the current version of the driver.
• Operational Mode - Reports the status of the driver, including information on any faults.

Configuration

• Device IP - Enter the IP address of your K-Array device to establish communication between the driver and the amplifier.
• Polling Interval - Choose the time frame for collecting state info from the device (in seconds).
• Volume Group X - You can group the output channels to assure the variation in the volume of a single channel in the group is propagated to all other channels. Write the channel number separated by a comma (e.g. 1,2,6,8 create a group containing channels 1,2,6 and 8).
• Volume Group X Offset (dB) - For some systems, you may need to maintain a volume difference between members of the volume group. The offset that is set here will be applied to all subsequent members of the volume group, determined from the first member. e.g. if an offset of -2.5 is set for a volume group 1,2,6,8, setting the volume of output 1 to -20dB will set the volume of outputs 2, 6 and 8 to -22.5dB.
• Media Player Volume - Set the volume of the internal USB player. The driver allows users to change only the output volumes, so you must set the input volume for the internal USB player.
• Media Player Input - Enter the input used for Media via the INPATCH routing. This input will be switched when the USB source is selected.

DriverCentral Cloud Settings

• Cloud Status - Reports the status of the driver from the DriverCentral cloud.
• Automatic Updates - Choose whether you want to enable automatic updates for this driver.

Debug

• Debug Mode - For support use only.
• Debug Subsystems - For support use only.
• Debug Level - For support use only.

Actions

• Read Device Preset List - Fetches the list of device presets created on the device. If you update the device preset list on the amplifier, it is strongly recommended to press this action to retrieve the latest preset information.
• Display Device Preset List - Reports the list of device presets on the Lua tab.

Programming

Commands

Alongside the standard AV Switch and Media Player commands, two custom commands are provided:

• Audio Selector Command - Change the player mode to your choice of USB, Bluetooth, Radio, Analog or Dante.
• Recall Preset - Recall a preset by its ID number.

Variables

Alongside the standard AV Switch and Media PLayer variables, a variable is provided to report the current preset name; CURRENT_PRESET_NAME.

Troubleshooting

If you encounter any issues with the driver, please contact us at https://support.janustechnology.co.uk, and we will be happy to assist however needed.

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CHANGE LOG
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K-Array KA Amplifier driver for Control4
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Date 2nd April 2024
Version 4020

ENHANCEMENTS
- Added option to disable IO switching

BUG FIXES
- N/A

EXCEPTIONS
- Maximum allowed output volume is limited to 6 dB

-------------------------------------------------------------------------------
Date 22nd December 2023
Version 4010

ENHANCEMENTS
- N/A

BUG FIXES
- Volume control for European locales fixed
- Media Player Input property retained through a reboot

EXCEPTIONS
- Maximum allowed output volume is limited to 6 dB

-------------------------------------------------------------------------------
Date 21st December 2023
Version 4000

ENHANCEMENTS
- Driver re-write to improve underlying functionality
- Added properties to maintain a volume offset between members of a volume group
- IO Routing now reflects the current state of the K-Array
- Added "Media Player Input" property, allowing IO route to be configured when the USB source is selected
- Added additional options for the "Audio Selector Command" command
- Added action "Display Device Preset List"
- Added command "Recall Preset"

BUG FIXES
- You can no longer select output channels that are unavailable on the connected device
- Fixed issue where the driver cannot be controlled for prolonged periods

EXCEPTIONS
- Maximum allowed output volume is limited to 6 dB

-------------------------------------------------------------------------------
Date 11th October 2023
Version 3020

ENHANCEMENTS
- N/A

BUG FIXES
- Reduced popcorning effect for the volume and mute of grouped zones
- Prevented bad mute on/off command from being sent while switching inputs

-------------------------------------------------------------------------------
Date 6th September 2023
Version 3010

ENHANCEMENTS
- Added standby mode

BUG FIXES
- Fixed MUTE_ON and MUTE_OFF commands
- Switching matrix now displayed in Composer

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Date 11th July 2023
Version 3000

ENHANCEMENTS
- Implemented volume step and ramp functionality

BUG FIXES
- Setting the volume to 0 now sets the device to -84dB, not 0dB

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Date 28th June 2022
Version 2000

ENHANCEMENTS
- N/A

BUG FIXES
- Fixed licensing which was not working properly

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Date 12th December 2021
Version 1100

ENHANCEMENTS
- Initial Release

BUG FIXES
- N/A

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