The Atmosphere

The Atmosphere is a compact multi-mode Reverberator containing 16 high quality, custom DSP reverb algorithms. These include classic favourites like Spring, Hall, Plate, as well as more experimental sounds like Aether (reverse), Gated, Pitch, plus many others. The Atmosphere features a vibrant 1.8” TFT colour screen providing easy access to many in-depth functions like: On-board Presets, Internal LFO system, Expression/Control Voltage mapping, MIDI, and more. Like all Dr. Scientist pedals, the Atmosphere can be used with guitar, bass, synths, and many other instruments.

MSRP: $369 USD

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  • 16 custom programmed digital effects in 1 small box
  • 16 On-board Presets
  • Full MIDI control over every parameter and access to presets
  • Large colour screen display for easy navigation
  • Multi Stomp Switch with assignable Press and Hold functions
  • Powerful internal LFO system with 8 waveforms and tap tempo for unbelievable modulations
  • Expression pedal/control voltage/Internal LFO can be mapped to 6 parameters
  • Internal LFO syncs to MIDI beat clock
  • Momentary infinite decay on every patch
  • High quality analog signal path
  • Premium parts and components throughout
  • Selectable True Bypass or Trails Bypass with soft touch relay switching
  • Full control over wet/dry mix
  • 24 Bit A/D conversion at 33.2kHz sample rate
  • Control over DSP Engine clock speed/system resolution
  • Choice of several bypass screen displays to suit your individuality
  • Top mounted audio and power jacks
  • Included power supply
  • Designed and handmade in B.C., Canada


  • RES – Control over DSP Engine clock speed/system resolution from 16kHz to 33.2kHz Affects sample rate, delay times, and effect rates
  • MIX– Adjusts the balance between Input (Dry) and Effect (Wet) signals
  • VOL – Controls the Input (Dry) and Effect (Wet) signal levels
  • TONE – Cuts or Boosts the high frequency content of the Effect (Wet) signal
  • DECAY – Controls the time the reverb takes to fade out (Displayed on screen)
  • CTRL1 – Controls parameter 1 of the current patch (Displayed on screen)
  • CTRL2 – Controls parameter 2 of the current patch (Displayed on screen)
  • <PATCH>– Rotary Encoder: Cycles through patches with clockwise or counter-clockwise rotation, Also used to navigate through menus
    Button: Press to toggle between Default and Preset of current patch. Hold to save a preset. Double click to enter menus. Press once to select options within menus
  • Multi – Assignable functions for press and hold include: Next Patch, Previous Patch, Preset/Default toggle, Infinite Decay, Tap Tempo for LFO, LFO On/Off, None Enter menu by holding stomp and double clicking PATCH button
  • Bypass – Engage or disengage the effect, hold to toggle between True Bypass and Trails Bypass




  • Input/Output Impedance: 500kΩ/1kΩ
  • 300mA @ 9VDC, 600mA @ 18V, 2.1mm centre negative plug
  • Selectable True Bypass or Trails Bypass with soft touch relay switching

Additional Specs

  • Mono input, Mono output, TRS Expression input/TS Control Voltage input
  • Tone Control: +/-12dB 2nd Order peaking filter centred at 3kHz
  • Expression Input: TRS cable, 10kΩ to 100kΩ resistance
  • MIDI Input: 5 Pin DIN cable
  • Control Voltage Input: TS cable, 0-5VDC
  • 24 Bit A/D Converters at 33.2kHz sample rate
  • Dimensions: 70mm wide, 129mm long, 59mm tall (2.75” wide, 5.1” long, 2.3” tall)



Why doesn’t my expression pedal go to 100?

Different expression pedal resistances need to be configured with the Atmosphere.  Remove the power from your Atmosphere, plug in your expression pedal and set it to the maximum (toe down) position.  While holding down both stomp switches on your Atmosphere plug in the power.  Keep holding down the stomps until the pedal loads and your expression input will be set and will go 0 to 100.

Does my dry signal become digital?

No, the dry signal path remains analog. Only the effected signal goes through analog to digital conversion.

What kind of expression pedal can I use?

The expression/CV input requires either an expression pedal with TRS cable (any resistance will work) or a TS cable when using control voltage with 0-5V on the tip and ground on the shield.

What does the side jack do?

The Atmosphere has two side jacks, the left one is for MIDI and the right one is for expression pedal or control voltage input.  The MIDI connection uses the standard 5 pin DIN connector and can receive Program Change, Control Change, and MIDI Beat Clock data.  The expression/CV input can be mapped to control various parameters.