Denon Professional

Denon Professional DN-300R MKII - Solid-State SD-USB Audio Recorder

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  • Regular price $249.00
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Denon DN-300R MKII Overview

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.

What's New on the MKII

Dual-stereo and dual-mono modes (16-bit / 44.1 kHz only) for recording standard and -10 dB safety tracks on SD and USB media at the same time

Key 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

Denon DN-300R MKII Specs

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
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
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%)
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
Packaging Info
Package Weight 9 lb
Box Dimensions (LxWxH) 22 x 16.5 x 14.7"