In addition to its AM/FM receiver and its disc playback, the XDMA6700 can be used to play iPod tracks using Dual's add-on iPlug cable, which is sold separately. However, the system cannot be used as either a satellite- or HD-radio receiver. All audio sources play out through the XDMA6700's simple 1-bit digital-to-analog converter with a power output of 17 x 4 channels. For audio tweaking, users can choose between five preconfigured EQ settings (pop, jazz, classic, beat, rock), and EQ levels can also be customized manually using the main control dial. We found in our test of the acoustic output that the XDMA6700 delivered a weak, tinny bass note and there was little demonstrable difference between the preset EQ settings in terms of audio output.
Bluetooth
When connected to the Alpine's plug-and-play BTM60 wireless Bluetooth module (also sold separately), the XDMA6700 can be turned into a very useful hands-free calling interface. Pairing a Bluetooth phone to the XDMA6700 involves a straightforward process: using either the stereo or a button on the Bluetooth module, users set the system to discovery mode and then complete the process by searching for devices with their cell phone.
All calls are routed through the stereo--even those made using the handset itself--unless the driver actively disables the Bluetooth connection. This is in contrast to other stereos we've seen that only route though the car's speakers those calls that are dialed using the stereo itself. The XDMA6700 is designed specifically with hands-free Bluetooth calling in mind. Unlike most single-DIN sized stereos on the market, the system has a full keypad to the right side of the faceplate, enabling drivers to make calls easily.
With a cell phone paired, users can make outbound calls by selecting Bluetooth as a source (which pauses or navigates away from any other audio playback), and then by punching in a number to the keypad followed by the Call button. Sound quality for outgoing calls via the XDMA6700's built-in mic is good, as is the quality of incoming calls through the car's speakers. To end a call, users have to press and hold the Mute button for three to four seconds--a little longer than we found comfortable. In general, though, we are impressed with the ease of pairing, ease of calling, and sound quality of the Bluetooth interface.
In sum
The Dual XDMA6700 is an inexpensive, good-looking car stereo with a great Bluetooth interface. Its music playback functionality, however, leaves far more to be desired. Those looking for an easy-to-use stereo with high quality acoustic output should look elsewhere.
- See more CNET content tagged:
- digital audio,
- keypad,
- search function,
- artist,
- car stereo
