What Is the Difference Between a Digital Media Port and a Digital Media Port Adapter?

Updated March 23, 2017

Digital music files are stored and played on a variety of portable devices, including iPods and other MP3 players. To provide new outlets for the files in these players to be heard, Sony has created the Digital Media Port and Digital Media Port adaptors.

Digital Media Port

The Digital Media Port (or DMPort) is a Sony proprietary input jack offered with certain models of their A/V and home theatre receivers. Similar in shape and size to a USB jack but with rounded ends, it allows the user to connect a device equipped with the proper connection cable and play music from that device through the receiver.


A Digital Media Port adaptor is a device also manufactured and marketed by Sony designed to attach to the DMPort jack and route music from a digital audio source to the receiver. The user connects the adaptor to a media player specific to that particular adaptor, such as an iPod, which allows that player to serve as a home audio component.

Adaptor Types

Digital Media Port adaptors include the TDM-IP1, which is an iPod docking/charging station, the TDM-NW1 Sony Walkman MP3 player dock, the TDM-BT1 Bluetooth adaptor and the TDM-NC1, which connects to a home Wi-Fi network and enables music files stored on a computer to be played through the stereo system.

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About the Author

Darrin Meyer has been writing since 2009. In addition to being a frequent blogger, his articles appear on eHow, Answerbag and other Web sites. Meyer has a Bachelor of Arts in broadcast journalism from the University of Nebraska-Lincoln.