Denon Professional DN300H - Frequently Asked Questions

The DN-300H is full-featured AM/FM digital tuner with options such as Program Type Search - enabling the user to search for broadcast types like News, Weather, Sports, Music genres, Arts & Culture and Science. 


Frequently Asked Questions


What is included with the DN-300H?

  • DN-300H
  • (2) Rack Ears
  • (6) Rackmount Screws
  • FM Antenna
  • AM Loop Antenna
  • RCA CableRemote Control
  • Power Cable
  • User Guide
  • Safety & Warranty Manual


How many station presets can be saved?

The DN-300H will allow you to save up to 20 station presets.


What kind of audio outputs does the DN-300H have?

The DN-300H has two sets of analog audio outputs.  The XLR audio connections provide a balanced audio output.  The RCA connections will provide an unbalanced audio signal.  Depending on your external amplification device either of these can be used as a master output.


What is the USB connection used for?

This USB port on the DN-300H is used for upgrading the unit’s firmware. The “Update/Normal” switch is used to set the mode for the USB connection for the firmware upgrade. For normal operation, this switch should be left in the Normal position.  Please visit for any available firmware updates.  


Can the DN-300H categorize stations?

The DN-300H allows you to search stations by program type - Music, News, Economics, Weather, Sports, Educational, Drama, Arts & Culture and Science.  The system uses station tags sent by the broadcaster to identify the type of broadcast. 


How do I set up the external antennas? 

The AM loop antenna can be mounted to a vertical surface or placed on a horizontal surface using the included stand.  The FM antenna is a long thin wire.  These should be routed to a fairly open area away from interfering devices such as WIFI routers, televisions and fluorescent lighting.  Generally speaking, the higher up a radio antenna is routed the better it's reception will be.  


Is the DN-300H rack mountable?

The DN-300H includes removable rack ears which are used to mount the unit into a standard equipment rack.  This unit is designed to be mounted into a single (1RU) rack space but can also be placed on a surface using the mounted rubber feet on the bottom.


Further Technical Support

Whether you are a customer or dealer, if you already own a Denon Professional product, or if you just have pre-sales questions, the Denon Professional technical support team is available to help!

Visit the link below to connect with any of the following support options: phone support, email support.