Duo X Technical Specs

Technical specs

Dimensions

• length: 188 mm
• width: 163 mm
• height: 63 mm

Processors

• RockChip RK3399 CPU:
  • CPU family: ARM A72 + A53
  • Platform bit depth: 64 bit
  • Cores Clock: 4 x 1.4GHz + 2 x 1.8GHz
  • Memory: 2 GB RAM
  • Flash Storage: 16 GB

Inputs and outputs

Audio

MOD Duo X right side view showing the audio and CV inputs.

MOD Duo X left side view showing the audio and headphone/CV outputs.

• 2x independent audio inputs with:
  • independent multi-stage preamplifiers per channel (+6, +15, +20dB);
  • TS connectors;
  • Input impedance 1 MΩ
  • Programmable Fine Adjust Gain Amplifier: ± 12 dB Gain, 0.5 dB step.
  • 24 bit Digital Audio convertion Bit Depth.
• 2x independent audio outputs with:
  • TRS noise cancelling;
  • TRS connectors (balanced compatible);
  • Volume Control: 0 to -127 dB, 0.5dB step;
  • 24 bit Digital Audio convertion Bit Depth.
• Headphone output:
  • 6.35mm TRS connector
  • Digital volume control from +12dB to −33dB
• SPDIF output:
  • 3.5mm coaxial TS connector (signal on tip port)

Each input/output uses a TRS connector, a True Bypass circuit, and has a LED whose color depends on the audio signal amplitude. Learn more about the Duo LED indicators here and for the Duo X here.

Control Voltage

• 2 CV input ports
  • Switchable to CV Expression (you can use this input to connect one expression pedal)
  • Stereo 6.35mm TRS connector
• 2 CV output port
  • Stereo 6.35mm TRS connector

Note:

• On the Duo X Limited edition, both the CV inputs and outputs have a range from 0V to 5V.
• On the Duo X normal production edition, both the CV inputs and outputs have a range from 0V to 10V.

ADC uses https://www.ti.com/product/ADC122S021 DAC uses https://www.microchip.com/en-us/product/mcp4922

Important Wrong use of the CV ports may damage the MOD Duo X. Please pay special attention.

MIDI

• MIDI IN connector - DIN 5 pins
• MIDI OUT connector - DIN 5 pins

USB

• USB Host
  • Connector: Type-A
  • Standard: USB 2.0
  • Maximum output current: 500mA

• USB Device
  • Connector: Type-B
  • Standard: USB 2.0

Device Controller

• 1x 2.8" LCD display
• 2x endless knobs
• 3x performance buttons
• 8x knobs
• 4x push buttons switches with color LEDs

Software

The MOD Duo X runs the MOD runs latest Operating System. Support for the MOD Duo X was added to the MOD OS on version 1.7.