steady-state-fate-entity-bass-drum

Steady State Fate Entity Bass Drum

Deep analog bass drum and percussion synthesizer

14 HP Eurorack module

The Entity Bass Drum is a complete analog bass drum synthesizer built around a resonant filter that creates percussive sine waves when triggered. It features comprehensive voltage control, a 2-stage envelope generator, discrete transistor saturation, and parallel signal processing for creating everything from tight kicks to infinite resonant drones and acid bass lines.

Features

  • Temperature compensated pitch tracking
  • Discrete transistor saturation
  • Parallel signal processing
  • Re-triggering envelope
  • DUCK output for external VCA control
  • RGB LED visual feedback
  • All parameters CV controllable
  • High fidelity audiophile design

Controls & Jacks (29)

  • FM Source— FM routing: FM/FM+ENV/ENV
  • TRIGGER— Main trigger input (any signal above 1V)
  • FALL— Controls the fall time of the envelope from 1ms to about a minute
  • PITCH— Tunes the output frequency from 8Hz to 2.2kHz
  • SATURATE— Adds harmonic saturation/distortion to the output signal, from subtle warmth to heavy clipping
  • RISE— Controls the rise time of the envelope from 1ms to about a minute
  • Output Mode— Output VCA mode: AMP/ENV
  • BODY— Simulates drum head tightness, from soft/muted to flabby
  • RGB— Visual feedback for trigger, FM depth and output waveform
  • 1V/OCT— Pitch tracking input for sequencer/keyboard
  • PING!— Trigger button for auditioning without external trigger
  • A-MIX— Auxiliary audio input to final VCA stage
  • RING— Controls resonant decay time from short/plucky to infinite
  • AMP CV— CV input for controlling the output VCA level
  • FALL CV— CV input for envelope fall time
  • BODY CV— CV input for modulating the Body parameter (drum head tightness)
  • Rise Shape— Envelope rise shape: log/lin/exp
  • RISE CV— CV input for envelope rise time
  • SAT CV— CV input for modulating the Saturate parameter
  • ENV OUT— Direct envelope output for triggering or modulating other modules
  • OUTPUT— Blends nominal output with secondary input or CV
  • Fall Shape— Envelope fall shape: log/lin/exp
  • DUCK— Inverted offset envelope output for ducking effects
  • FM Input— FM modulation input attenuator. Controls the amount of frequency modulation applied to the bass drum pitch.
  • ENV SHAPE— Morphs the envelope shape continuously between exponential, linear, and logarithmic curves
  • BASS— Low-frequency EQ input jack for shaping the bottom end of the drum sound
  • TREBLE— High-frequency EQ input jack for shaping the top end of the drum sound
  • BACK OUT— Secondary output taken before the output VCA, always active regardless of AMP mode
  • F-MIX— Direct input to resonant filter

How-To Guides

  • Classic Kick Drum
  • Infinite Resonant Drone
  • 303-Style Acid Bass
  • Pitch-Swept Tom
  • Parallel Compression Effect
  • External VCA Ducking
  • Feedback Distortion Loop
  • Rhythmic Bass Line

Explore the interactive Entity Bass Drum panel on BleepDex — tap any control to learn what it does.

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