Product highlights:

Power and processing:

• 9-channel amplifier
• 140 watts per channel into 8 ohms (20-20，000 Hz) at 0.08% THD， with 2 channels driven
• Hybrid Digital Amplifier Technology for efficient， clean power and low distortion
• Dolby® and DTS® surround sound decoding
• Dolby Atmos processing for use with in-ceiling or "height" speakers for more enveloping home theater sound
• Dirac Live™ advanced room correction software tailors the sound to your room with the included microphone

Digital and streaming music options:

• BluOS multi-room compatibility with optional Bluesound wireless speakers
  • includes support for Amazon Music Unlimited， Spotify， TIDAL， Napster， Deezer， Qobuz， and more (subscription required for some services)
  • supports internet radio from TuneIn， iHeartRadio， Calm Radio， Radio Paradise， and Slacker Radio
• supports MP3， AAC， WMA， OGG， FLAC， ALAC， WMA-L， MQA， WAV， and AIFF file formats
• Bluetooth streaming (transmitting and receiving)
• Apple AirPlay 2 lets you stream directly from an iPhone® or iPad® and ask Siri to play Apple Music
• works with Amazon Alexa and Google Home voice control assistants

Multi-room audio:

• dual-zone capability with powered dual-room/dual-source output
• surround back amplifier channels can be assigned to power speakers in Zone 2
• only analog sources can be played in Zone 2

Audio performance features:

• toroidal transformer delivers clean， consistent power to all channels
• back surround speaker channels re-assignable for biamping front left and right speakers for improved performance
• gold-plated A/V inputs/output connectors
• detachable power cord

Connections:

• HDMI 2.0 audio/video switching: 6 in， 2 out， including one front-panel input
• HDCP 2.2 technology ensures compatibility with 4K Ultra HD sources and TVs
• HDR-compatible for extended picture contrast and brightness with compatible 4K TVs and HDR-encoded content
• supports 4K Ultra HD video pass-through
• supports ARC (Audio Return Channel) and eARC (Enhanced Audio Return Channel)
  • eARC receives uncompressed surround sound signals including Dolby Atmos and DTS:X via the HDMI connection with your compatible TV
• front-panel USB port for audio playback from USB flash drives
• 3 analog stereo RCA inputs， including a dedicated phono input
• digital audio inputs: 2 optical， 2 coaxial
• 7.1-channel analog audio preamp outputs for connecting optional external amplifiers
• Wi-Fi dongle and extension cable for wireless connection to your home network
• RS-232 and Ethernet port for use with optional 3rd-party automated control systems

General features:

• MDC (Modular Design Construction) offers the ability to upgrade components for future format and feature compatibility
• free BluOS controller app for iOS and Android devices
• intuitive front-panel color touchscreen for easy operation
• includes HTR 8 remote control (4 "AA" batteries included)
• rack-mountable (3U-height)
• 17-1/8"W x 5-9/16"H x 17-15/16"D
• weight: 26.7 lbs.
• warranty: 2 years
• Our 60-day money-back guarantee
• MFR # T778