VPME Four Play

Name: Four Play
Brand: VPME

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.