Kiara ZiemeYamaha RX-V4AMeda Wolff

Product highlights:

Power and processing:

• 5-channel amplifier
• 80 watts per channel into 8 ohms (20-20,000 Hz) at 0.06% THD, with 2 channels driven
• Dolby® and DTS® surround sound decoding
• Cinema DSP 3D adds richness and depth to music and movie soundtracks
• YPAO (Yamaha Parametric Room Acoustic Optimizer) automatic speaker calibration
  • included microphone helps fine-tune your system to best match your room's acoustics
• Music Enhancer improves sound quality of Bluetooth streams, MP3s, and other digitally compressed music files
• amp assign function lets you use the surround speaker outputs in different configurations like bi-amping the front speakers, or for use in Zone B

Digital and streaming music options:

• built-in Wi-Fi for listening to music from a networked PC, free internet radio, and music services
• MusicCast wirelessly connectscompatible Yamaha componentstogether for seamless whole-home audio
  • includes support for Pandora®, SiriusXM, and Spotify® (subscription required for some services)
  • free MusicCast app offers easy Wi-Fi control, settings adjustments, and music selection and playback
  • supports wireless rear surround sound when paired withMusicCast 50ortwo MusicCast 20wireless speakers
• works withAmazon AlexaandGoogle Assistantvoice control devices
• Apple AirPlay 2 lets you stream directly from an iPhone® or iPad® and ask Siri to play Apple Music®
• built-in Bluetooth for wireless music listening with smartphones, tablets, and compatible computers
• plays high-resolution digital music files via USB storage device or a networked computer (PCM up to 24-bit/384kHz resolution; DSD up to 11.2 MHz)

Connections:

• HDMI 2.1 audio/video switching: 4 in, 1 out
  • all HDMI connections will support 8K/60Hz and 4K/120Hz video
  • 8K/60Hz and 4K/120Hz video compatibility enabled via free future firmware update
  • all HDMI connections support 4K/60Hz video
  • HDCP 2.3 technology ensures compatibility with Ultra HD sources and TVs
  • HDR-compatible for extended picture contrast and brightness with compatible TVs and HDR-encoded content
  • supports HDR10 and HDR10+
  • HDR10+ enabled via free future firmware update
• gaming-optimized video processing technologies for a smooth, lag-free gaming experience
  • Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), Quick Media Switching (QMS), and Quick Frame Transport (QFT) reduce or eliminate lag and frame tearing
  • VRR, ALLM, QMS, and QFT enabled via free future firmware update
• 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
• digital audio inputs: 1 Toslink optical, 1 coaxial
• 3 analog stereo RCA audio inputs
• two line-level subwoofer outputs (each output carries the same signal)
• front-panel USB port for audio playback from USB flash drives
• outputs for 5 speakers (Front L/R, Center, Surround L/R)
• Ethernet port for network connection
• full-sized headphone jack

General features:

• free MusicCast app lets you use your Apple® or Android™ device as a Wi-Fi remote
• Yamaha AV Receiver Setup Guide app guides you through the connection process and initial settings
• AM/FM tuner
• handheld remote control included
• 17-1/8"W x 6-3/4"H x 14-7/8"D (9-5/8"H with Bluetooth and Wi-Fi antennas raised)
• weight: 19.4 lbs.