MS-RA670 Apollo Marine Entertainment System AM/FM, Sirius XM, Bluetooth, ANT, USB Stereo 3 Zone with 4 x 70 AmpAn era of marine audio entertainment, crafted and engineered by Apollo - the God of Music. The Apollo Series combines engineering and design never seen before in the marine industry, forever changing the face of marine audio entertainment and becoming the standard by which all others will be shaped. The Apollo RA670 inherits key audio innovations and revolutionary technology from the award-winning Apollo RA770 including Fusion’s Digital Signal Processing, PartyBus, over-the-air software updates* and more source options including Optical Audio for connection to TVs in salons and cabins. From the kick drum to the eardrum, Apollo has made it inherently simple to customize your audio entertainment for superior sound quality in any area of your boat. The future of marine audio entertainment has arrivedNote: PartyBus and over-the-air software updates available when Apollo RA670 is integrated with an external network router or Apollo RA770 stereo. Features: Digital Signal Processing (DSP): A technically superior listening experience made simple, Fusion’s DSP produces superior sound quality in every environment. Precisely calculated loudness curves optimized for the human ear ensure quality, full range audio at every volume level, while the feed-forward limiter anticipates a peak in the audio and adjusts the gain to make distortion, a thing of the past. Using environmental information and acoustically designed Fusion speaker profiles, you can now achieve customized, optimized audio for any area of your boat, resulting in an entertainment system that is perfectly tuned for premium audio reproduction, and programmed to protect your system season after season. Setting up your DSP profiles is made simple with the free Fusion-Link app. With just a few clicks, you can set up the preconfigured DSP profile once and get back to enjoying what you love on the water, while listening to high quality audio customized for your ears and the environment. PartyBus: Enjoy the freedom of musical choice with the Apollo Series and Fusion-PartyBusâ„¢. The power of PartyBus kicks in when you add more PartyBus enabled stereos to your entertainment system. Each additional PartyBus enabled stereo gives you the option to join Party Mode and play the same perfectly synced audio source through the entire vessel. Opt into Personal Mode and listen to available audio sources from your stereo in the area of your choice without disrupting Party Mode in the other areas of the vessel. Over-The-Air Software Updates*: The Apollo Series is intelligently simple and always up to date, thanks to the over-the-air software updates available from your smartphone or compatible device via the free Fusion-Link app. More Source Options: The Apollo RA670 features more source options, with Bluetooth, UPnP, Optical Audio, advanced SiriusXM features and DAB+ radio available, AM/FM radio, AUX and USB connections ready at your fingertips. Advanced SiriusXM Features (USA only): Along with the addition of on-screen album art, a selection of advanced features are now available on SiriusXM! Features: Instant Replay, where you can replay songs from up to 1 hour past playing, making sure you never have to miss another beat of your favorite tunes. TuneStart, where you will always hear the song playing on each of your favorite stations from the start, no matter how far along it is when you change the channel. TuneMix, where you can create your own channel from a mix of your favorites to create your very own custom channel. TuneMix also gives you the ability to skip songs back to the last hour you have been listening across all channels in your mix. SportsFlash, where you’ll receive key plays and updates from your favorite teams during live games, ensuring you never have to miss the best moments. Artist, Song and Game Alerts, where you can choose to receive alerts whenever your favorite artists, songs or sports teams start playing. Note: A SiriusXM Connect vehicle tuner and subscription are required to access SiriusXM satellite radio (available in USA only). DAB+ radio requires the addition of an MS-DAB100A module (sold separately).True-Marineâ„¢ Designed and Engineered: Built on Fusion’s True-Marine design philosophy, the Apollo RA670 has an impressive IPX7 and IPX6 rated water resistant front panel, and has been tested to a high level for protection against salt fog, temperature, vibration and UV. Fusion-Linkâ„¢: The industry standard protocol for on-water audio integration and control, Fusion-Link enables control of your entertainment directly from partnered marine Multi-Function Displays, compatible Apple or Android devices via the Fusion-Link app, and Garmin watches via Fusion-Link Lite. With multiple control options, no matter what you are doing on your boat, you can always be in control of your audio entertainment. Multi-Zone Technologyâ„¢: Three.