QSC K.2 series Use and care manual

Regarding: K.2 Series (220~240V regions only)
Dear QSC Customer,
Thank you for your purchase of K.2 Series loudspeakers.
QSC upholds a very high standard for Product Reliability. Recently we have discovered an
issue that can, under certain irregular conditions lead to failure of K.2 loudspeakers in
countries using 220-240V power. QSC has developed a user-installable firmware update that
is recommended for K.2 speakers used in regions with 220-240V AC power, including:
Europe
Middle East / Africa
Asia (excluding Japan & Taiwan)
Australia / New Zealand
South America (220-230V countries only)
NOTE: This update is NOT necessary in regions with 100-120V AC power, such as North
America, Central America, Caribbean, Japan or Taiwan.
Update Instructions are further on in this document or can be found in the document named:
“K.2 Firmware Update Instructions V1.1.0”
If you have any questions or concerns, please email: K.2fir[email protected]m
Thank you for your understanding.
QSC Technical Support

Dear QSC Customer,
In addition to the “Cover Letter” from QSC, we as distributor for the BeNeLux, UK, Germany and
France (AED Distribution) have some extra information.
The download link for the firmware can be found here:
https://www.dropbox.com/s/fzxwxt9y9wlrwqu/K.2%20Firmware%20Update%2010-31-
2018.zip?dl=0
The units that are in our warehouse and QSC’s warehouse do not have the new firmware yet. All
units shipping out now do not have the new firmware. QSC will let us know from when units coming
from the factory will have the new firmware. Until further notice all units that ship out to you will
have the old firmware and you will need to update them yourself.
If you buy from a local dealer you will need to check with them if your units have the new firmware
or not.
You can check yourself if the unit has the new firmware or not:
Go to the SETTINGS MENU and check the firmware version, it should be 1.1.0.3101
Units coming from AED Distribution as replacement for defective units will have the new firmware
and will have a GREEN DOT next to the serial number on the outside of the box.
If you are a reseller and you update speakers that are to be sold as new, please make a similar
marking on the serial number label, for example with a colored marker. This way you and your
customer s know if the new firmware is uploaded or not.
AED Distribution / AED repair : Official QSC dealer and service center, [e-mail]

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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Installing the Updater Application on a PC
Hardware Requirements
Computer with Windows 7 or Newer
USB to Micro USB Cable
For Windows 10:
1. Open file K2UpdaterInstall
2. Click NextClick Next
3. Accept End User License Agreement

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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4. Select Destination Folder Click Next
5. Create desktop icon, create start menu folderClick Next

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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6. Select start Menu Folder Location Click Next Click Finish Completed

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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For Windows 7:
For Win7 Please follow the same procedure as Win10.
You probably will not need the CDC driver as described below.
Extract the Android_Gadget_CDC_driver.zip
1. Open Device Manager on your computer (to open device manager, press WIN + R to launch Run
Command, In Run Command type devmgmt.msc and hit OK button.
2. Once Device Manager is launched, search for your USB device, look under Other devices or
Ports.
3. Right click on the USB device and open properties, look for Update Driver
4. Click Update DriverSelect “Browse my computer for driver software”

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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5. Click on “Let me pick from a list of device drivers on my computer”

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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6. Search for Ports (COM & LPT), Select Ports (COM & LPT) Click Next
7. Click on “Have Disk…”

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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8. Browse to the location of Android_Gadget_CDC_driver.inf file extracted in step 1
10 . Choose Android_Gadget_CDC_driver.inf filepress “Yes”on the Update Driver Warning prompt

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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11. Click on “Install this driver software anyway”
12. After the driver installation is compete, unplug the USB device (Amp Module) and plug the USB
device (Amp Module) back in
13. Now repeat the steps listed for Windows 10 version to install the K2Updater.

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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K.2 Firmware Update
1Open K2Updater.exe
1. Remove Rotor Knob from Amp Module to expose Micro USB connector.
2. Plug USB cable to computer and K.2 Amp Module
3. Power ON K.2 Amp ModuleUnit Serial # should now appear in K.2 Updater
WARNING: To avoid corruption during the firmware update process:
Do Not Power OFF the Amp module.
Do Not unplug the USB Cable.
Make sure the computer is connected to a Power Source.

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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4. Click Update.
K.2 Update will indicate when update is completed.

QSC K.2 Firmware V1.1.0.3101 Update Process 10-31-2018
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5. When FW update is complete, remove USB cable, turn Amp Module OFF, then turn Amp Module
ON.
6. Use rotary encoder to highlight Settings.
7. Push enter button.
8. Visually verify FW revision (1.1.0.3101) and Model are correct:
9. Turn Amp module OFF, remove power cord, and install Encoder Knob.
10. Firmware update is completed.