QSC K.2 series, Firmware Update

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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.2firmwareupdate@qsc.com
Thank you for your understanding.
QSC Technical Support