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 Wrongly use of the CV ports may damage the MOD DuoX. 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 DuoX runs the MOD runs latest Operating System. Support for the MOD DuoX was added to the MOD OS on version 1.7.