K.2 Firmware
All owners of K.2 Series Active Loudspeakers must check their firmware version and ensure that all units are updated with the latest firmware. The K.2 Series firmware update is user-installable and takes only a few minutes to complete.
QSC remains committed to quality, reliability, and customer satisfaction. Please assist us in this regard by ensuring your K.2 Series products are always running the latest available firmware.
Mac Firmware Update
Version 2.1 – 5/7/2025
Windows Firmware Update
Version 2.1 – 5/7/2025
Release Notes
Overview
The K.2 Series firmware update version 2.1 offers 3 new Factory Presets (CLUB, VOX BOOST, and SMOOTH), as well as an extension of the onboard Room Delay, doubling the delay time from 100 ms to 200 ms. It also provides additional performance enhancements and bug fixes including refinements to the loudspeaker’s protection design. These refinements also minimize the possibility of inadvertently triggering any unwanted protection modes.
The firmware update is available for all K.2 Series models including all variations of components.
- K8.2
- K10.2
- K12.2
Firmware version for all models: version 2.1.42
Firmware Updater App: version 2.2.4
What's New
3 New Presets
The addition of new Presets provides an extended set of voicings for a wider range of applications
- CLUB - An alternate voicing from the DANCE Preset that fine-tunes the high and mid frequencies, specifically designed for high-SPL playback material.
- VOX BOOST - This Preset offers an experience similar to the “VOCAL BOOST” found on the legacy K Series loudspeakers, which includes a level increase in the upper midrange, allowing for improved vocal clarity with playback material as well as live music applications.
- SMOOTH - This Preset adjusts the high frequency tonality of all K.2 Series models, helping to tame high-SPL sound in live or program audio applications that may have unbalanced high frequency content.
Increased Maximum Onboard Room Delay
Based on user requests, the available onboard Room Delay has been extended from 100 ms to 200 ms.
Bug Fixes
Protection Modes
Refinements to the loudspeaker’s protection design, minimizing the likelihood of the unit shutting down in certain circumstances.
Preventing Amplifier shut down with Atypical Voltages
In some high-voltage regions where power voltage may have larger fluctuations (with large peaks), these atypical voltages could cause the amplifier to shut down on some K.2 Series loudspeakers. This update addresses the amplifier voltage management that could cause units to shut down under these special conditions.
Losing User Settings after too many Power Cycles
In some cases, a K.2 Series loudspeaker that was powered on/off a very high number of times could lose user settings that were saved to the loudspeaker. This update prevents the loss of user settings.