DN-300RMKII

Solid-State SD/USB Audio Recorder


The DN-300RMKII records to both SD and USB media simultaneously – perfect for recording conferences where the client needs a copy of the recording after the event. With outstanding ease-of-use and simple operation, anyone can use the DN-300RMKII right out of the box and record to SD, USB or both. Utilizing Dual Mono or Dual Stereo modes, the ability to record a second mono or stereo file at -10dB on the same media is supported - even when recording to both SD and USB at the same time. The DN-300RMKII is exactly what the market is looking for in terms of a simple but high-quality recording solution for commercial applications. The DN-300RMKII gives installers and contractors the flexibility and convenience they need for total commercial recording capability. 

  • Records WAV and Mp3 files to SD and USB media simultaneously
  • Simple and easy to use
  • Powers-up in record-ready mode
  • Dual Stereo & Dual Mono modes for recording -10dB safety tracks on the same media
  • Balanced and unbalanced inputs and outputs
  • Compact 1RU design
  • Digital Audio System
    • System:
      • Solid-state SD/USB audio recorder/player

    • Compatible Media (FAT16, FAT32)
      • USB Device (mass storage class)
      • SD/SDHC
      • SDXC

    • Supported File Formats
      • MP3
        • Sampling frequency:
          • 44.1 kHz

        • Bit rate:
          • 192, 256 kbps (recording); 64 - 320 kbps and VBR (playback)

        • Format:
          • MPEG1 Audio Layer 3

        • File extension:
          • .mp3


      • WAV
        • Sampling frequency:
          • 44.1, 48 kHz

        • Bit depth:
          • 16-bit (44.1 kHz), 24-bit (48 kHz)

        • Format:
          • Waveform Audio File Format

        • File extension:
          • .wav



    • Number of Channels:
      • 2 channels / stereo

    • Audio Frequency Range:
      • 10 - 20 kHz (± 1.0dB recording, ± 0.8 dB playback)

    • Signal-to-Noise Ratio
      • Recording:
        • > 95 dB (1 kHz, 0dB A-weighted)

      • Playback:
        • > 95 dB (1 kHz, 0dB A-weighted)


    • Channel Separation
      • Recording:
        • > 80 dB (1 kHz, 0dB A-weighted)

      • Playback:
        • > 90 dB (1 kHz, 0dB A-weighted)


    • Wow and Flutter:
      • < 0.001 %

    • Distortion
      • Recording:
        • < 0.008 %

      • Playback:
        • < 0.006 %


    • Total Harmonic Distortion:
      • < 0.01% (1 kHz, 0dB A-weighted)


  • Inputs
    • Balanced XLR
      • Nominal level:
        • +4 dBu ± 1 dBu

      • Minimum level:
        • - 40 dBu

      • Maximum level:
        • 20 dBu ± 1 dBu

      • Input impedance:
        • 18 kΩ



  • Outputs
    • Balanced XLR
      • Nominal level:
        • +4dBu ± 1 dBu

      • Maximum output level:
        • +20 dBu ± 1 dBu

      • Output impedance:
        • 600 Ω ± 10%


    • Unbalanced RCA
      • Nominal level:
        • -10 dBV ± 2 dBV

      • Minimum output level:
        • 6 dBV ± 2 dBV



  • Connectors
    • (2) XLR outputs
    • (1) 1/4" (6.35mm) headphone output
    • (1) RCA stereo output pair
    • (2) XLR inputs
    • (1) RCA stereo input pair
    • (1) USB port
    • (1) SD card slot
    • (1) IEC AC power input

  • Power
    • Connection:
      • IEC

    • Input Voltage:
      • 100 - 240 V~, 50/60 Hz


  • Dimensions (width x depth x height):
    • 19.0" x 10.92" x 1.72" (484 x 277 x 44mm)

  • Weight:
    • 6.6 lbs (3 kg)