VPME Four Play
Four independent VCAs that mix, cascade, and shape
12 HP Eurorack module
Four Play is a quad voltage-controlled amplifier and mixer module for Eurorack. Each of its four channels offers independent CV control, an attenuator, a switchable boost, and a continuously variable exponential-to-linear response curve. Channels cascade both CV and audio signals downward when left unpatched, allowing it to function as four independent VCAs, a 4-into-1 mixer, or anything in between.
Features
- Four independent voltage-controlled amplifiers with individual CV inputs
- CV inputs half-normalled downward — a single CV source can control all four channels
- Audio outputs half-normalled rightward for cascading mix summing to 4/MIX
- Per-channel CV attenuator knob to scale incoming CV depth
- Per-channel Boost switch adding +6 dB input gain
- Per-channel Curve knob morphing continuously from exponential to linear VCA response
- Per-channel Level knob for overall VCA output level
- CV LED per channel indicating positive CV (green) or negative CV (red)
- DC-coupled inputs and outputs suitable for audio and CV signals
- Maximum attenuation of -97 dB at 1 kHz
- Output noise at unity gain: -92 dBu (22 Hz-22 kHz)
- Maximum input and output level: +19 dBu
Controls & Jacks (29)
- CH1 Boost
- CH1 Level
- CH1 CV Attenuator
- CH1 Curve
- CV In 1
- CH2 Boost
- CH2 Level
- CH2 CV Attenuator
- CH2 Curve
- CV In 2
- CH3 Boost
- CH3 Level
- CH3 CV Attenuator
- CH3 Curve
- CV In 3
- CH4 Boost
- CH4 Level
- CH4 CV Attenuator
- CH4 Curve
- CH4 LED
- CV In 4
- In 1
- In 2
- In 3
- In 4
- Out 1
- Out 2
- Out 3
- 4/Mix
How-To Guides
- Classic Envelope-Controlled VCA
- Four-Voice Polyphonic VCA
- CV-Controlled Crossfader Between Two Sources
- LFO Tremolo Effect
- Sidechain Ducking / Envelope-Controlled Mix
- Amplitude Modulation (AM) Synthesis
- Sequenced Volume Accents
- Generative Random Volume Shaping
- Input Boost for Hot Signal Staging
- Four-Stem Mixer with Individual Outputs
Explore the interactive Four Play panel on BleepDex — tap any control to learn what it does.
