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Denon solid-state media recorders have been designed for AV installations in places such as houses of worship or places of education audio production, live sound, theatre and broadcast facilities. They can be mounted in a 19-inch rack by using the included rack brackets or used free-standing without the brackets.


A professional solid-state recorder, the DN-300R MKII offers dual recording in MP3 and WAV formats simultaneously to SD/SDHC/SDXC and USB media with the ability to record to either media device at -10dB as a safety track - resulting in four stereo files. It may be rack-mounted and has both balanced and unbalanced analogue audio inputs and outputs, along with AC mains inlet (IEC) located on the rear panel.

The front panel has a push on/off switch with side guards to prevent accidental switching, a SD/SDHC/SDXC card slot, a USB port, a rotary control to adjust input level, a rotary headphone level control (with corresponding 6.35mm jack socket) and rotary/push select control. Six buttons allow the user to navigate the menu system on the display; search, stop, play/pause, and record buttons are positioned to the right of the unit for transport control. A 5-stage LED bar graph gives visual aid as to input level; separate USB (blue) and SD (red) LEDs illuminate to signify the corresponding media type has been selected for recording.

Compatible recording media: SD/SDHC card, USB flash memory, external USB recording media (mass storage class). File systems: FAT16/FAT32. Recording format, MP3: MPEG1 layer III audio compression; MP3 Bit-rate: 256/192kbps, stereo. WAV: 16-bit (44.1kHz)/24-bit (48kHz) sampling.

Analogue inputs: +4dBu, 18k ohms, balanced; -10dBV, 22k ohms, unbalanced. Frequency response: 10Hz - 20kHz, +/- 1.0dB. Distortion: 0.01% THD. Analogue outputs: +20dBu maximum, into 600 ohms minimum, balanced; -10dBV, into 600ohms minimum, unbalanced. Power source: 100-240V AC, 50/60Hz. Dimensions: 1U, 19 inch rack mounting.

Note: The DN-300R does not charge any connected USB devices, not does it support USB hubs, USB extension cables, or SD card readers.


With many of the features of the DN-300R, the DN-500R also has the AES/EBU digital inputs and outputs as well as unbalanced analogue and S/PDIF connectivity. It also has support for serial and parallel remote control.

An OLED display and file-search jog-wheel simplify operation. A USB Keyboard input allows for simple editing of file names. Playback modes includes single/continuous, repeat, random, programmed and skip-back play, with power-on auto-play, pitch control, between +/- 16 per cent, and tempo-lock (master key) also included. Cascade or simultaneous recording between the SD/SDHC card and connected USB drive allow either backup or extended recording facilities respectively. Audio tracks may be 'marked' during record; the 'marks' may then be searched for on playback, used to edit on the device or create an EDL (edit decision list) allowing the edits to be completed after the recording is transferred to a PC, using the supplied DMP Mark Editor Software (Windows only). Timer recording and playback features, also allow advanced scheduling of capture or playback.

A power switch with an adjacent green LED power on/standby indicator is at the extreme left of the front panel, with a 6.35mm stereo headphone socket with associated level control next. Two USB ports, for drive and keyboard connection respectively, are located next to this, with a hinged flap, which may be secured with a screw, covering a slot for an SD/SDHC card. Below this buttons offer 'Move', 'Copy', 'Combine', Divide' and 'Undo' edit functions, or when used with the adjacent 'Shift' button, 'Dimmer' (display brightness), 'Rec.Mon.' (recording monitoring); 'Mark', 'Mark -' and 'Mark +' are used to add and search for marks (-/+) and the last button steps through the 'Display' screens and selects text. The OLED display shows status and settings information, depending on the current mode, including recording and playback levels, folder and track names.

On the right of the front panel, the top row of five buttons offer a choice of 'List', 'Menu', 'Frame', 'Fast Forward' and 'Fast Rewind' playback functions, or when used with the 'Shift' button, 'Media' (display attached media), '-Lock' (disable front panel operations); 'Pitch', 'Pitch +' and 'Pitch -' are used to activate and alter the pitch of playback.

The bottom row features the four large 'transport' buttons: A large 'Recording' button lights red during recording and flashes red when recording is paused. The remaining three offer 'Stop', 'Pause' and 'Play'. A smaller 'Back' control, for stepping back through menus, sits below a rotary, jog-style control (with a push-to-enter switch) that allows the user to skip tracks, move the text cursor, menu item selection and set the recording level or recording balance between left and right.

The rear has two female and two male 3-pin XLR connectors for the balanced analogue inputs and outputs. Two pairs of RCA (phono) types provide unbalanced analogue inputs and outputs. A pair of 3-pin XLR connectors offer AES/EBU digital input and output. S/PDIF digital input and output are provided on another pair of RCA (phono) types. RS-232C and 'parallel' ports are provided by 9-pin and 25-pin D-sub connectors respectively. The AC power inlet is an IEC type.

Compatible recording media: SD/SDHC card, USB flash memory, external USB recording media (mass storage class). File systems: FAT16/FAT32/HFS+. Maximum capacity of recording media: theoretical maximum of 2TB, current media standards allow 32GB. File size: 2GB maximum. Recording format, MP3: MPEG1 layer III audio compression; MP3 Bit-rate: 160/128/96/64/32 kbps, mono; 320/256/192/128/64 kbps, stereo. WAV: 16/24-bit linear PCM; 44.1/48/96kHz sampling. MP3, WAV, AIFF and AAC playback.

Analogue inputs: +24/20/18/4dBu, 24kohms, balanced, for 0dBFS; +10/6dBV/4dBV, -10dBV, 10kohms, unbalanced. Digital inputs: 3.5Vpp, 110ohms, balanced, AES/EBU; 0.5Vpp, 75ohms, unbalanced, S/P-Dif. Response: 20Hz - 20kHz, +0.5/- 1.0dB, Fs=96kHz. Noise: -89dB, playback, IEC-A filter. Distortion: 0.01% THD, 0VU, AES-17 20kHz filter, PCM. Dynamic range: 106dB, 24-bit WAV playback. Analogue outputs: +24dBu maximum, into 600 ohms minimum, balanced, for 0dBFS; -10dBV, into 10kohms minimum, unbalanced. Digital outputs: 3.0Vpp, 110ohms, balanced, AES/EBU; 0.5Vpp, 75 ohms, unbalanced, S/PDIF. Power source: 230V AC, 50/60Hz, 30W (0.4W standby). Dimensions: 1U, 19 inch rack mounting.

Included accessories: Manual, power cable, security hardware for SD card door, CD with instruction manuals and DMP Mark Editor software for Windows. This offers playback, copying, division and merging of files, adding and deletion of marks, and more.


The Denon DN-700R shares many of the same functionality and design features as the DN-500R including the analogue and digital I/O, controls on the front-panel, and large OLED display. In addition, the DN-700R has an extra SD card slot, giving two in total, and the added benefit of network connectivity.

Using the RJ45 Ethernet connection on the rear of the DN-700R to connect to a network via DLNA/UPnP gives access to remote and automatic functionality such as automatic, timed, file archiving via FTP and password protected web control - useful when the recorded audio needs to be archived and secure such as in recording legal formalities. It is also compatible with the supplied Denon Product Manager software to give the user single point control over multiple networked units including remote power on/off capabilities for single or grouped units.

Media compatibility, analogue I/O and digital I/O are as the DN-500R. Power source: 230V AC, 50/60Hz, 30W (0.4W standby). Dimensions: 1U, 19 inch rack mounting.

Included accessories: Quick start guide, security hardware for SD card doors, plastic pin and retainer, CD including instruction manual, DMP Mark Editor installer, DMP Mark Editor instruction manual, Denon Professional Product Manager installer.

  Description Price (£) Add to basket
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DENON DN-300R MKII RECORDER SD, SDHC, USB, WAV, MP3, balanced/unbalanced I/O, 1U   Stock code: 79-7217
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DENON DN-500R RECORDER SD, SDHC, USB, WAV, MP3, AES, S/PDIF, balanced/unbalanced I/O, 1U   Stock code: 79-7211
No longer manufactured. See the product page for suggested alternatives.
DENON DN-700R RECORDER SD, SDHC, WAV, MP3, AES, S/PDIF, RS232, Ethernet, balanced/unbalanced I/O, 1U   Stock code: 79-7212
No longer manufactured. See the product page for suggested alternatives.