OverviewThe Onkyo TX-NR5100 is a 7.2-channel home theater receiver built around HDMI 2.1 connectivity and next-generation gaming and video support. It delivers 80 watts per channel (8 ohms, 20 Hz–20 kHz, 0.08% THD, 2-channel driven) and decodes Dolby Atmos and DTS:X for immersive object-based surround sound in a compact chassis. The unit is finished in black.Why This Model MattersAs the entry point to Onkyo's 8K NR lineup, the TX-NR5100 brings HDMI 2.1 features that were once reserved for flagship receivers into a genuinely affordable package. Support for 4K/120 and 8K/60 pass-through, eARC, and variable refresh rate makes it a natural match for the latest game consoles and displays, while dual-band Wi-Fi and Bluetooth keep music streaming simple.Highlights 7.2 channels at 80 W/Ch (8 ohms, 20 Hz–20 kHz, 0.08% THD, 2-ch driven) HDMI 2.1 with 4K/120 and 8K/60 pass-through plus eARC Dolby Atmos and DTS:X object-based surround decoding Built-in Spotify, TIDAL, Deezer, TuneIn, Pandora and Amazon Music HD Dual-band Wi-Fi, Bluetooth, Chromecast built-in and AirPlay 2 Works with Sonos and Google/Apple voice assistants Who It's ForThe TX-NR5100 suits movie fans and gamers building a first serious surround system who want current-generation HDMI 2.1 video and streaming without stepping up to a larger receiver. It is an ideal heart for a 5.1 or 7.2 setup in a small-to-medium room.