A great combination for immersive sound Dolby Atmos® and DTS:X® formats allow engineers to place sound anywhere in 3D space, meaning effects can move from speaker to speaker throughout the room to immerse your audience in the latest movies and games or your favorite classic titles. Smooth, sharp action HDMI 2.1a supports a range of higher video formats and refresh rates, including 8K60 and 4K120, as well as Dynamic HDR formats. Combined, 60Hz refresh rates enable smooth, sharp playback of fast-paced action, and HDMI 2.1a with 8K ensures your system is ready for the brightest, cleanest pictures available today and in the future. Clarity and colour like you've never seen before See images on screen with new clarity and vibrant colour. Dolby Vision and HDR10+ technology take the content you love to the next level, so you can relax and enjoy the latest content with bright, clear visuals and dynamic colour, all from the comfort of your couch. Perfect positioning made easy AccuEQ Room Calibration streamlines your initial home theater setup by ensuring that your receiver and speakers are properly calibrated to suit the room they’re in. This technology compensates for differences in speaker size and distance to even out response, so you get exceptional audio performance no matter what size room you’re in. Hear Every Whisper Accentuate dialogue and vocals with the TX-SR3100’s Vocal Enhancer technology. By adding the Center element to your Front Left and Front Right speakers, you can pick up conversations more clearly during action scenes with loud explosions or quiet moments in gripping dramas, no matter where the volume is set. Hear the musical nuance Our Music Optimizer DSP listening mode reconstructs data that can be lost when audio files are compressed (which can happen with WMA, AAC and MP3 formats). This technology returns audio files to their original lossless quality by creating new signals to restore small details cut out during the compression process. Virtually Immersive When playing any Dolby format, the captivating Dolby Atmos Height Virtualizer creates a more immersive listening experience by creating a virtual surround and height effect from traditional speaker layouts without the use of additional surround or height speakers. Sounds that should be coming from above and far away will sound as if they are really there. POWER AND AMPLIFICATION 155w (1kHz, 10% THD, 1ch @ 6 ohms) 80w (20-20kHz, 0.08% THD, 2ch @ 8 ohms - FTC) Class AB Amplifier 5.2 or 3.2.2 channels (5 amplified) HDMI AND VIDEO INPUTS 4 In / 1 Out (eARC) 8K/4K Ultra HD Dolby Vision, HDR10+ 8K/4K Ultra HD, Dolby Vision, HDR10+, HDCP2.3, HDMI2.1a VRR, QFT, Dynamic HDR, ALLM, DSC, SBTM AUDIO IN/OUT 4 HDMI, 3 RCA, 1 Opt, 1 Coax inputs 2 preout subwoofer Zone B stereo RCA lineout SURROUND MODES Dolby Atmos, Dolby Surround DTS:X, Neural:X Dolby Atmos Height Virtualizer and DTS Virtual:X KEY FEATURES 80 w/ch x 5ch, High current amplifier Dolby Atmos®, DTS:X® HDMI 2.1a - 8K/4K, HDCP2.3, Dolby Vision, HDR10+, SBTM 5.2ch or 3.2.2ch processing with Dolby Atmos height/surround virtualizer Bluetooth® DTS:X, DTS Virtual:X, Neural:X AccuEQ Room Calibration Klipsch Optimized Mode Music Optimizer