Synthesis Technology E300 Ultra VCO (Black)

Analog oscillator based on the MOTM-300

 419,00 ( 343,44 + VAT)

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  • Analog oscillator with excellent pitch tracking
  • Coarse and fine tune potentiometers
  • Waveforms: Sine, triangle, saw and pulse
  • PWM knob and CV input
  • Two FM inputs with attenuators. One of them features a switch for choosing between linear and exponential behavior.
  • Sub oscillator, which lies one or two octaves below the main VCO.
  • Sync input
  • Free Shipping
  • After Sale Support
  • 2 Years Warranty
  • Secure Payments

Synthesis Technology E300 Ultra VCO (Black)

Analog oscillator based on the MOTM-300

The Synthesis Technology E300 Ultra VCO is an analog oscillator based on the MOTM-300 5U module, with an updated design engineered in collaboration with Dave Rossum of Rossum Electro-Music.

The E300 uses modern temperature-controlled exponential converters without the expensive MAT-02EH + Tempco found in the MOTM-300. It also incorporates variable HFT (High Frequency Tracking) for a wider, more accurate 1V/Oct input. The SYNC circuit is a simpler hard sync type, with accurate detection of any waveshape/frequency used. There is an added -1OCT/-2OCT sub-octave squarewave output, which is phase-aligned with the sawtooth.

The VCO core is a new sawtooth-based circuit with improved linearity and a unique saw-to-triangle converter with no glitch in the transition peaks.

Just like the MOTM-300, the E300 is designed to be the best tracking analog VCO available (over 10 octaves) with the lowest temperature drift (typically less than 0.1Hz over a 24hr period).



  • 14 HP
  • 32 mm deep

Current Draw

  • 55 mA +12V
  • 40 mA -12V
  • 0 mA 5V


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Return and restocking option is available for private customers only. We will issue a refund/credit if you are not satisfied with your purchase and notify us within 10 days of product receipt. It must be returned in the original packaging and in saleable condition and must be returned freight prepaid. Return and restocking rights are not applicable for Audio/Video and software products. Shipping and handling charges to and from are not refundable.

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