[. . . ] VSX-820-K 5. 1-Channel A/V Receiver Featuring HDMI® (v. 1. 4 with 3D), Works with iPhone® Certification, Bluetooth Capability, 1 and Room Calibration with On-screen Display AmplificAtion > Power Output: 110W x 5 (1kHz, THD 0. 05% @ 8 ohms) > 80W + 80W (20Hz ­ 20kHz, THD 0. 08% @ 8 ohms FTC) Video feAtures > HDMI 1080p (v. 1. 4 with 3D), Deep Color, x. v. Color Audio feAtures > Texas Instruments AureusTM DSP > 192 kHz/24-bit DAC > Dolby® TrueHD > Dolby Pro Logic IIz > Dolby Digital/EX > DTS-HD® Master Audio > DTS® 96/24 / DTS Neo:6/DTS Express > Auto MCACC Room Calibration > Symmetric EQ > Multi-channel PCM (192 kHz) & SACD (2-ch) Playback via HDMI > 0. 1 Step Audio Delay (Lip Sync) (Max 9 Frame) > Advanced Surround (Action, Drama, Entertainment Show, Advanced conVenience > Works with iPhone® Certified - Charges iPhone while plugged in w/ supplied USB/Video Cable - Automatically mutes music for incoming calls - All iPhone's wireless and network features remain functional > On-Screen Display > 30 Tuner Presets > Pre-programmed Remote Control > FL Dimmer (4 steps) > Sleep Timer (30, 60, 90 minutes) > Auto Audio Signal Select > LFE Attenuator connectiVity > HDMI (4 inputs / 1 output) > Front USB > Front A/V Inputs > USB Memory Audio Ready > Bluetooth Port (Compatible with optional Bluetooth adapter Game, Sports, Classical, Rock/Pop, Unplugged, Extended Stereo) > Auto Surround > Stream Direct > Phase Control (bass management ensures precision low frequency output) > Front Stage Surround Advance > Advanced Sound Retriever for enhanced PC and portable audio AS-BT100) > SIRIUS®2 Satellite Ready > 3 Digital Inputs (1 Coaxial, 2 Optical) > Component Video Terminal (2 Inputs, 1 Output) Assignable > Audio/Video Inputs: 2A/4AV > Audio/Video Output: 1A/1AV + 1V > 2. 1 Preout (Subwoofer + Surround Back/Front Height Channels) > Large Speaker Terminals (FL/FR/SL/SR/C) (2-ch) > Midnight Listening Mode > Auto Level Control Optional Bluetooth Adapter (AS-BT100) required 2 Antenna and subscription required and sold separately Bold denotes step-up features from VSX-520-K 1 VSX-820-K 5. 1-Channel A/V Receiver Featuring HDMI® (v. 1. 4 with 3D), Works with iPhone® Certification, Bluetooth Capability, * and Room Calibration with On-screen Display specificAtions > > > > > inteGrAted tecHnoloGies Power Requirements: AC 120 V/60 Hz Power Consumption: 245 Watts Standby Power Consumption: Less than 0. 4 Watts W x H x D: 16. 55 x 6. 23 x 13. 71 inches Weight: 19. 8 lbs connections Rear Panel A B C D E F D. [. . . ] They do not refer to the nominal rated impedances of speakers you use. HDMI connection may not allow transmission of copyright protected material, depending on the capability of the signal source. iPhone, iPod and iPod Touch are trademarks of Apple, Inc. , registered in the US and other countries. DTS is a registered trademark & the DTS logos and Symbol are trademarks of DTS, Inc. Bluetooth functionality requires a compatible A2DP profile Bluetooth-enabled device. Certain Bluetooth features may not be supported by all compatible Bluetooth-enabled devices, and/or the functionality of such features may be limited in certain devices. [. . . ] Texas Instruments, Aureus and design are trademarks of Texas Instruments Incorporated in the U. S. [. . . ]