Duo Technical Specs

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Technical specs

Dimensions

MOD Duo dimensions in mm
  • length: 186 mm
  • width: 160 mm
  • height: 75 mm

Inputs and outputs

Audio

MOD Duo left side view showing the audio and headphone outputs.
  • 2 independent inputs:
    • TS connectors
    • Input impedance 1 MΩ
    • Programmable Gain Amplifier: ± 12 dB Gain, 0.5 dB step plus a 32 dB gain stage for microphone
  • 2 independent outputs:
    • TRS connectors (balanced compatible)
    • Volume Control: 0 to -127 dB, 0.5dB step
  • Headphone output:
    • TRS connector
    • Digital volume control from +12dB to −33dB

Each input/output uses a TRS connector, a True Bypass circuit and has a LED whose color depends on the audio signal amplitude.

  • signal < -30dB : off
  • -30dB < signal < -12dB : green
  • -12dB < signal < -3dB : yellow
  • signal > -3dB : red

MIDI

  • MIDI IN connector - DIN 5 pins - for musical instruments and controllers
  • MIDI OUT connector - DIN 5 pins

USB

  • USB HOST - USB 2.0 Standard-A type
    • USB Bluetooth
    • USB Wifi
    • USB MIDI
  • USB DEVICE - USB 2.0 Standard-B type
    • USB Ethernet Adaptor
    • USB Mass Storage (used for updates)

Controllers

  • 2 knobs with LCD screen
  • 2 foot switches with color LEDs
  • RJ-45 connector for additional controllers (see Control Chain)

Processors

  • A20 CPU:
    • Dual Core ARM A7 1.0GHz
    • 1 GB RAM
    • 4 GB Flash Storage
  • Audio CODEC:
    • Manufacturer: Cirrus Logic
    • DAC: 104dB dynamic range, -90dB THD+N
    • ADC: 104dB dynamic range, -95dB THD+N
    • 24 bit / 48 kHz AD/DA

Peripherals

Software

The MOD Duo uses a linux operating system with LV2 plugins to define virtual pedal boards.