knob.farm Hyrlo
Transparent analog stereo mixer for modular rivers of sound
4 HP Eurorack module
Hyrlo is a compact 4HP high-quality analog audio mixing module by knob.farm capable of mixing up to 3 stereo pairs or 6 mono channels in a single unit. It features ultra-low noise, very low harmonic distortion, and a near-linear frequency response for transparent, clean summing. Multiple Hyrlo modules can be daisy-chained via EXT bus connectors to build larger mixers or sub-groups.
Features
- 4HP compact form factor
- Mix up to 3x stereo pairs or 6x mono channels in a single module
- Ultra-low noise analog summing circuit
- Very low harmonic distortion
- Near-linear frequency response across entire audio range
- AC-coupled circuitry prevents DC injection into audio path
- Quality attenuators with customized response curves for smooth volume control
- LED indicators displaying signal status per channel pair
- L channel normalled to R channel for mono-to-stereo compatibility
- Symmetrical panel design that can be flipped to reverse the golden river silhouette pattern
- Hyrlo mk II: EXT.IN and EXT.OUT bus connectors for daisy chaining multiple modules
- Hyrlo mk II: 3 micro switches on back panel for daisy chain and 6x mono configuration
Controls & Jacks (30)
- Wavetable Select — Selects wavetable position or morphing control
- Auxiliary Output 1 — Secondary output (alternate waveform or stage)
- Envelope/Modulation Output — Envelope or modulation signal output
- Frequency — Sets the base oscillator frequency
- Additional CV Output — Additional control voltage output
- Wavetable CV Input — Control voltage for wavetable selection
- Auxiliary Output 2 — Tertiary output option
- Shape/Morph — Controls wavetable morphing or waveform shaping
- FM Input — Frequency modulation input
- V/Oct Input — Pitch control via 1V/Oct standard
- Audio Output — Main audio output
- Shape CV Input — Control voltage for shape/morph parameter
- Volume Control 1 — Selects wavetable position or morphing control
- Volume Control 2 — Sets the base oscillator frequency
- Volume Control 3 — Controls wavetable morphing or waveform shaping
- 6x mono — Back panel micro switch that toggles between stereo pairing mode and 6x mono mode
- OUT normalling switches — Back panel switches (x3) that control whether inserting patch cables into OUTs interrupts daisy chaining (ON< position) or not (>OFF positio
- LED indicator 1 — LED showing signal status for channel pair 1
- LED indicator 2 — LED showing signal status for channel pair 2
- LED indicator 3 — LED showing signal status for channel pair 3
- L Input 1 — Pitch control via 1V/Oct standard
- R Input 1 — Frequency modulation input
- L Input 2 — Control voltage for wavetable selection
- R Input 2 — Control voltage for shape/morph parameter
- L Input 3 — Gate or trigger input
- R Input 3 — Hard sync input for oscillator reset
- L Output — Main audio output
- R Output — Secondary output (alternate waveform or stage)
- EXT.OUT — Tertiary output option
- EXT.IN — Envelope or modulation signal output
How-To Guides
- 3-Source Stereo Mix
- 6-Channel Mono Drum Mix
- Stereo Pads Plus Mono Leads
- Daisy Chain Sub-Group Mixer
- Mono Source into Stereo Bus
- Live Level Riding Performance
- Internal Bus Routing with Ferry
- Two Stereo Sources Plus Effects Return
Explore the interactive Hyrlo panel on BleepDex — tap any control to learn what it does.
