Plugins for the mix that can’t wait.
Reverb, delay and cleanup built in Norway for live engineers. Every plugin runs at zero latency, so you can put it on a vocal mic during the show.
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Walther Reverb
A dense 16-line reverb with four characters, from a tight plate to a huge shimmering space.
- Four charactersNordlys, Fjord, Isbre and Kosmos, each with its own colour and sound.
- STANS freeze with releaseHold a pad under the bridge and let it fade over up to 30 seconds, while new hits still get your normal reverb.
- Echo controlTurn down the flutter in the tail for a smooth, even decay on vocals and snare.
- NERD panelOpen ten extra controls when you want them, and hide them when you don’t.

Walther Delay
A delay you play like a pedal, with footswitches for tap tempo and freeze.
- Circular modeThree taps spread left, right and centre that roll into each other for a wide, moving repeat.
- Five modesCircular, Pan, Ping-Pong, Tape and Digital. The whole pedal changes colour with the mode.
- TAP and STANS footswitchesTap the tempo, sync to the host, or freeze the repeats and play over them.
- DuckingRepeats step back while you sing or play, then fill the gaps.

Walther Klar
Removes noise, bleed and feedback from a live mic across 56 bands, without adding latency.
- Bleed by sourcePick what the mic is for, like vocal, snare, overheads or bass, and Klar holds back everything else.
- Feedback hunterFinds ringing frequencies and notches them before the room hears them.
- AI VoiceA neural voice detector keeps speech and singing open and pulls noise down in the pauses.
- De-EssTames harsh s-sounds and leaves the vowels alone.
Shop
Buy once and keep the plugin. You get a download link and an installer that puts the VST3 and AU in the right folders.
All three plugins
Reverb, Delay and Klar together.
Prices in USD. VAT is added at checkout where it applies.
Requirements
- SystemmacOS 10.13 or later
- ProcessorApple Silicon or Intel
- FormatsVST3 and AU
- Latency0 samples
- WindowsNot yet
Questions
Can I use these live?
Yes, that’s what they’re made for. They were built and tested in LiveProfessor with a Dante interface, and none of them add latency.
How do I install them?
Unzip the download and double-click the installer. It copies the plugins to your Audio Plug-Ins folder and refreshes the plugin list. A manual is included.
How many instances can I run?
Many. Walther Delay uses around half a percent of one core on an M4 laptop. Klar is the heaviest of the three, and you can still run a few dozen on a modern Mac.
Is there a Windows version?
Not yet. It’s planned. The bundle will include it when it’s ready.
Do updates cost extra?
Updates within the same major version are free.