Compare Sony CDX-MP40 Car CD / MP3 Player to Sony DSX-S310BTX Car USB / MP3 Player

For music lovers who hunger to bring their favorite technologies on the road, Sony is continuing to offer enhancements in the car that are featured in popular portable devices, such as skip-free G-Protection ™ technology and MP3 playback capabilities. G-Protection technology provides virtually skip-free listening, offering car audio enthusiasts the uninterrupted bass they demand. In addition, cruising with a library of MP3 files is a snap. Listeners can now have MP3 playback capabilities in the car with the CDX-MP40 model. In addition, most head units are CD-R/RW compatible and XM-satellite ready. Listeners can sound off with the quality audio technologies added to Sony's head units to enhance in-car acoustics. The units feature DSO, Sony's proprietary dynamic soundstage organizer that raises the soundstage from a low position in the door, and EQ3 that offers the power of 3-band equalization at the touch of a button. Less

Enjoy your entire music library with the DSX-S310BTX digital media receiver. Featuring the integrated Tune Tray compartment, you can easily connect, control and charge your iPhone, iPod, Walkman player or other compatible music devices via the USB 1-Wire input. The Tune Tray keeps your player secured inside and eliminates unsightly and distracting wires. You can also stream your favorite Pandora internet radio station on your drive with your iPhone, Android or Blackberry smartphones. This receiver delivers 52 watts of peak power to all four speakers while DSO and EQ3 stage 2 lets you adjust the mix for a dynamic sound experience. In addition to delivering superior sound quality, this receiver features a flip-down, detachable faceplate and is satellite radio and HD Radio ready. It also features Tune Tray, dual USB 1-wire inputs, Bluetooth hands-free phone access and streaming audio ability, plus an easy-to-read 4-line OEL display. Less