3D stands for 3 dimensional. Products carrying the 3D logo are able to output or path through the digital 3D video signal.
Audyssey Dynamic Volume
Your Listening experience can be greatly diminished when there are significant shifts in volume between television programs, commercials and within the program material itself. When this happens you must constantly adjust the volume to maintain your desired listening level. Audyssey Dynamic Volume monitors the volume of program material moment-bymoment and automatically adjusts it, maintaining the desired listening level for all content while optimizing the dynamic range to preserve impact.
Dolby True HD
Dolby TrueHD is Dolby’s next-generation lossless technology developed for high-definition audio coding. Dolby TrueHD supports up to eight full-range channels, allowing the audio engineer to position sounds for a more realistic effect than ever before. Dolby TrueHD is supported by HDMI™, the single-cable digital connection for high-definition audio and video. Dolby TrueHD will be transmitted via HDMI 1.3a and is compatible with HDMI 1.1 as an outputted HD 7.1 PCM multichannel signal. See ‘HD - 7.1 PCM Multichannel’
DTS-HD Master Audio
DTS-HD Master Audio is an optional High Definition Audio format for all Blu-ray Disc™ products. DTS-HD Master Audio format allows a bit-to-bit representation of the original movie’s studio master soundtrack and delivers audio at high constant bit rates superior to standard DVDs.
Made for iPhone / Made for iPod
‘Made for iPod’ and "Made for iPhone" means that an electronic accessory has been designed specifically to connect to iPod and has been certified to meet the Apple performance standards. Current Marantz products carrying the 'Made for iPod' logo are compatible with the following iPod models: 5th Generation iPod or higher, iPod Classic, iPod Nano (1st, 2nd, 3rd and 4th generation), iPod video and iPod Touch. For 5th Generation iPod, iPod Nano or iPod Touch the audio transmission is digital. 'Made for iPhone' adds the iPhone compatibility to this list.