Outstanding value on the 7703 -- http://www.outlawaudio.com/products/av7703.html

Features of the 7704 are quite similar...



• 4K HDCP 2.2
• Wi-Fi and Bluetooth built in
• Dolby Atmos
• Dolby TrueHD and DTS HD Master Audio
• 13.2 ch preout (XLR 11.2) with 11.2 ch processing
• Current Feedback circuitry with Marantz’s new HDAM
• Audyssey MultEQ XT32, LFC, Sub EQ HT, Pro ready
• 7+1 HDMI in / 3 out (4:4:4, 3D, ARC, Deep Color)
• HDMI scaling
• MP3, WAV, AAC, WMA, AIFF
• HD Audio streaming: FLAC 192/24, DSD, ALAC
• Gapless Playback
• Spotify Connect*, Pandora*, SiriusXM*, Flickr, and Internet Radio
• Phono (MM) input
• Setup Assistant and advanced GUI
• Big trapdoor design; Aluminum front panel
• Marantz Remote App for iOS® and Android® devices
• ECO mode


VS
• 4K HDCP 2.2
• Wi-Fi and Bluetooth built in
• Dolby Atmos, DTS: X, Auro-3D
• HDMI eARC via future firmware
• Dolby TrueHD and DTS HD Master Audio
• 13.2 ch preout (XLR 11.2) with 11.2 ch processing
• Current Feedback circuitry with Marantz’s new HDAM
• Audyssey MultEQ XT32, LFC, Sub EQ HT, Pro ready
• 7+1 HDMI in / 3 out (4:4:4, 3D, ARC, Deep Color)
• HDMI scaling
• Alexa Voice Commands
• MP3, WAV, AAC, WMA, AIFF
• HD Audio streaming: FLAC 192/24, DSD, ALAC
• Gapless Playback
• Spotify Connect*, Pandora*, SiriusXM*, Flickr, and Internet Radio
• Phono (MM) input
• Setup Assistant and advanced GUI
• Big trapdoor design; Aluminum front panel
• Marantz Remote App for iOS® and Android® devices
• ECO mode