90 watts x 7 into 8 ohms (20-20,000 Hz) at 0.08% THD Dolby® TrueHD, DTS-HD™ Master Audio, Dolby® Digital Plus, DTS-HD™ High Resolution Audio, Dolby® Digital EX, DTS-ES™, Pro Logic® IIx, Pro Logic® IIz, SRS Circle Surround II, and DTS Neo:6 decoding Audyssey Laboratories' MultEQ six-point auto setup and room calibration system (microphone included) Audyssey Dynamic Volume mode to keep listening levels steady Audyssey Dynamic EQ™ for fuller sound at lower listening levels XM Satellite Radio Ready with decoding for XM's HD Surround channels (requires XM subscription and optional XM tuner kit) Neural THX Surround decoder for XM's HD Surround channels SIRIUS satellite radio capable (requires SIRIUS subscription and optional SiriusConnect™ home tuner kit) Bluetooth-capable (requires optional Marantz RX101 adapter) M-DAX (Marantz Dynamic Audio eXpander) for better sound with compressed music sources multi-room/multi-source audio powered and line-level stereo audio output for 2nd room (using powered 2nd room stereo output allows 5.1 home theater in main room) digital audio output for 3rd room via optical digital out (available only with audio sources input through an optical digital connection to receiver) back surround speaker channels re-assignable for bi-amping front left and right speakers 192kHz/24-bit digital-to-analog converters for all channels HDCD decoder for compatible CDs on-screen display with graphical user interface for easier system setup and operation backlit learning/multibrand remote 17-5/16"W x 6-1/4"H x 16-3/8"D weight: 28 lbs. warranty: 3 years Our 60-day money-back guarantee Connections: 1080p-compatible HDMI digital video switching (3 in, 1 out) analog-to-HDMI video upconversion (up to 1080p) HDMI version 1.3a with support for Deep Color, x.v.Color, SACD, and auto lip-sync component video switching (3 in, 1 out) component video conversion (composite and S-video to component) digital audio inputs: 3 optical (including 1 front-panel), 2 coaxial digital audio outputs: 1 optical 7 audio/video inputs, including: 1 front-panel input with composite and S-video 4 rear-panel inputs with composite video 2 audio-only inputs no phono input 7.1-channel analog audio preamp input 7.1-channel analog audio preamp output RS-232C port for automated control systems detachable power cord direct IR flasher input, 12V DC trigger out 2 sets of main speaker outputs MFR # SR5004 Message if interested