KLANG Adds Per-Mix Reverb in KOS 6.1
KLANG:technologies released KOS 6.1, an operating system and app update that gives every mix its own reverb.
Updated on Nov. 3, 2026 in Classical

KLANG:technologies released KOS 6.1, the latest update to its operating system and KLANG:app, which gives every mix its own reverb. The new reverb is free of charge and runs on the KLANG:konductor, KLANG:vokal, DMI-KLANG, and KLANG:1pro processors.
Why it matters
The update lets monitor engineers and musicians shape reverb per mix rather than sharing one room sound, which can help a vocal sit in the space while kick drum and bass stay dry. Existing shows load with the reverb turned off, so current setups are not changed until users enable it.
KOS 6.1 offers four reverb types per mix (room, hall, cathedral, or plate), each with adjustable time, return level, and a four-band EQ. The extraction does not report performance or latency measurements for the new reverb.
The players
KLANG:technologies
KLANG:technologies is the company behind the KLANG operating system, KLANG:app, and KLANG:kontroller hardware used in live sound and monitoring.
The details
Monitor engineers set up each mix's reverb in KLANG:app, while musicians can adjust their own reverbs on KLANG:kontroller or in KLANG:app. KOS 6.1 also adds a safety limiter and an ambience ducker to KLANG:kontroller.
Timeline
November 3, 2026: KOS 6.1 announced and available now as a free public preview.
End of November 2026: KOS 6.1 replaces KOS 6.0 as the official release.
Season Trajectory
KOS 6.1 extends the KLANG operating system line that KOS 6.0 established, moving the official release forward from 6.0 by the end of November. The update shifts reverb from a shared room setting toward per-mix control inside the same KLANG:app and KLANG:kontroller workflow.
Existing shows load with the reverb off, so users must enable it per mix to hear the change. The reverb is free of charge on the KLANG:konductor, KLANG:vokal, DMI-KLANG, and KLANG:1pro processors.
The takeaway
If you run monitors or perform on KLANG hardware, set up a separate reverb for each mix to keep vocals present while leaving low-end instruments dry. Check that existing shows have the reverb enabled, since they load with it off.
What happens next
KOS 6.1 will replace the current KOS 6.0 as the official release by the end of November 2026.
Further reading
Explore more on the Classical section for context on how performance and recording technology shape the sound of live music.
More information
Read the KOS 6.1 full details and download from KLANG:technologies.
Source note: This article includes information reported by Etnow.







