Studio Electronics Boomstar 4072 Analog Synthesizer Module

Price$1,799
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Shipped From
Perfect Circuit
Burbank, CA, United States
(18,294)
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Joined Reverb
2015

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Back to the raw power and purity of discrete analog - where Studio Electronics started in 1985!

Boomstar is the ultimate desktop analog synthesizer for those who remember and desire the electronic analog sounds that changed the world. Choose between four models, each corresponding to a classic filter type:

  • 4075: Classic Arp 2600
  • 5089: Classic Moog 24dB ladder
  • SEM: Classic Oberheim 12dB with sweepable Low-pass through High-pass
  • 303: Classic Roland TB

The Boomstar is a superior analog music machine made in the USA. From it's discrete voltage controlled analog oscillators, to it's hand matched transistors in its filters and amplifiers, no compromises have been made and no corners cut. This is the real deal for those seeking truly fat analog sound at a reasonable price. The snap and punch of hardware envelopes drive the Boomstar's brilliant voltage controlled circuits with unparalleled sonic integrity and versatility. The Boomstars are even semi-modular, with easy to access front mounted CV and Audio inputs and outputs for different routing possibilities and use with other hardware. This is not your average modern analog synthesizer!

The Sound Engine and Controls

All discrete circuity. Hand matched transistors in filter and amplifier.

Oscillator 1:

  • 6 position rotary octave range switch
  • Two center-off toggle switches select combinations of sine, triangle, saw and square waveforms
  • Pulse width for square waveform
  • Sub oscillator with center off toggle switch for half and full level positions
  • Sync oscillator 2 to oscillator 1 switch
  • XMod: Oscillator 2 mod depth knob with center off toggle switch to select modulation of oscillator 1 pulse width or oscillator 1 frequency.

Oscillator 2:

  • 6 position rotary range switch
  • Three position toggle switch to select triangle, saw or square waveform
  • Fine tune knob
  • Mod depth knob with center off toggle switch to select modulation by envelope 1 or 2
  • Keyboard tracking on-off switch.

Mixer:

  • Oscillator 1 level knob
  • Oscillator 2 level knob
  • Ring Modulator level knob
  • Noise level knob
  • Feedback knob. 

Filter:

  • Frequency and resonance knobs
  • Center off toggle switch to select half and full keyboard tracking
  • Envelope mod depth knob
  • Additional mod depth knob with center off toggle to select modulation by oscillator 2 or the LFO

Envelope 1:

  • Attack, decay, sustain, and release knobs
  • Center off toggle switch to select envelope invert or envelope loop

Envelope 2:

  • Attack, decay, sustain, and release knobs
  • Center off toggle switch to select envelope invert or LFO gate trigger
  • Single or multiple triggering switch
  • Center off toggle switch to select drone and envelope 1 as master
  • With master selected, envelope 2 is the modulator for both the amplifier and filter frequency. Envelope 1 remains active for oscillator 2 frequency and oscillator 1 pulse width modulation.

LFO:

  • Rate knob
  • Midi sync on-off switch
  • Waveform knob: sine, triangle, saw up, saw down, square, offset square 1 and 2, random and slew random waveforms
  • Mod depth knob with center off toggle switch to select oscillator 1 frequency or oscillator 1 pulse width
  • Mod depth knob with center off toggle switch to select oscillator 2 frequency or oscillator 2 pulse width.

Amplifier:

  • Center off toggle switch to select two levels of overdrive
  • Volume knob.

Additional:

  • Master tune knob
  • Bend range knob
  • Glide time knob
  • Dynamics to filter frequency knob
  • Envelope 1 to oscillator 1 pulse width knob.

Features

  • All analog semi-modular monophonic synthesizer
  • 2 discrete voltage controlled oscillators
  • Choose between 4 classic filter types
  • 2 ultra-snappy analog ADSR envelopes
  • Voltage controlled amplifier
  • Low frequency oscillator
  • Ring Modulator
  • 2 Overdrive types
  • Glide

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