Denon DN-300R MKII Solid-State SD/USB Audio Recorder (DN300R)

The Denon DN-300R MKII is a rack-mountable audio recorder and playback device designed for installed sound applications in houses of worship, music clubs, and more. It can record to SDHC/SDXC cards and USB media, either one at a time or simultaneously to both, making it ideal for capturing conferences or concerts where the client needs a copy of the recording immediately after the event. The DN-300R MKII features balanced XLR and unbalanced RCA I/O for connecting its input to an external audio source and its output to powered speakers or a sound system. The DN-300R MKII records WAV files at up to 24-bit / 48 kHz and MP3 files at up to 256 kb/s.

Multiple record options are available including mono, stereo, dual mono, and dual stereo. In dual-mono and dual-stereo modes, two audio files are created with the second one recorded at -10 dB to help protect your recording against accidental clipping. Recording can be started manually or automatically when the input level passes a certain threshold. Various playback options enable you to play just a single track or all tracks in a folder or on the device, in repeat or random playback modes. A headphone output with independent volume control allows you to monitor quietly while recording or playing back.

FEATURES

• Records WAV and MP3 files to SD (SDHC/SDXC recommended) and USB media simultaneously
• Simple and easy to use
• Balanced XLR and unbalanced RCA inputs and outputs
• Powers up in record-ready mode
• Multiple record modes including mono, stereo, and more
• Multiple playback modes including repeat, random, and more
• Selectable auto track function starts and stops recording when the input level passes a certain threshold, or stops recording after a definable period of time has elapsed
• 1/4" headphone output with independent volume control
• Rack-mountable design occupies 1 RU of rack space

SPECIFICATIONS 

• Digital Audio System
  - System : Audio Recorder and Player
  - Number of Channels : 2
  - Compatible Media : USB: 256 MB to 2 TB | SDHC Card: 4 to 32 GB | SDXC Card: 64 to 128 GB
  - Supported File Systems : FAT16, FAT32
  - Supported File Formats : MP3, WAV
  - Supported Sampling Rate : MP3: 44.1 kHz | WAV: 44.1 or 48 kHz
  - Bit Depth : WAV: 16-Bit / 44.1 kHz or 24-Bit / 48 kHz
  - Bit Rate : MP3 Recording: 192 or 256 kb/s | MP3 Playback : 64 to 320 kb/s and VBR
  
  
• Connectivity
  - Inputs : 2 x 3-Pin XLR Female (Balanced) | 2 x RCA Coaxial (Unbalanced, One Stereo Pair)
  - Outputs : 2 x 3-Pin XLR Male (Balanced) | 2 x RCA Coaxial (Unbalanced, One - Stereo Pair) 1 x 1/4" TRS Stereo Headphone Output
  - Media Slots : 1 x USB Type-A | 1 x SD Card Slot
  
  
• Performance
  - Frequency Response : 10 Hz to 20 kHz (±1.0 dB Recording, ±0.8 dB Playback)
  - Signal-to-Noise Ratio : Recording (WAV): >90 dB (1 kHz, 0 dB, A-Weighted) | - Recording (MP3) : >80 dB (1 kHz, 0 dB, A-Weighted) | Playback: >90 dB (1 kHz, 0 dB, A-Weighted)
  - Channel Separation : Recording (WAV): >85 dB (1 kHz, 0 dB, A-Weighted) | Recording (MP3): >60 dB (1 kHz, 0 dB, A-Weighted)
  - Wow & Flutter
  - Distortion : Recording (WAV): Recording (MP3): Playback (WAV): Playback (MP3):
  - Total Harmonic Distortion
  - Minimum Input Level : XLR: -40 dBu | RCA: -19 dBV
  - Nominal Input Level : XLR: +4 dBu (±1 dBu) | RCA: -10 dBV (-16 dBFS)
  - Maximum Input Level : XLR: +20 dBu (±1 dBu)
  - Nominal Output Level : XLR: +4 dBu (±1 dBu) | RCA: -10 dBV (±2 dBV)
  - Maximum Output Level XLR: +20 dBu (±1 dBu) | RCA: +6 dBV (±2 dBV)
  - Input Impedance XLR : 18 Kilohms | RCA: 22 Kilohms (±10%)
  - Output Impedance : XLR/RCA: 600 Ohms (±10%)
  
  
• General
  - Operating Temperature : 41 to 113°F / 5 to 45°C
  - Operating Humidity : 25 to 85%, No Condensation
  - Power Supply : 100 to 240 VAC, 50/60 Hz via IEC Connection
  - Rack Space : 1 RU
  - Dimensions (W x D x H) : 19 x 10 x 1.7" / 48.3 x 25.4 x 4.4 cm
  - Weight : 6.6 lb / 3 kg