Denon 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. 

Features: 

• 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

Technical specifications: 

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)