TR“ZA3100ES 7.2 Channel 4K AV Receiver Premium audio quality - With 110W per channel, the STR“ZA3100ES delivers cinema“like surround sound and crystal clear music reproduction (110W @ 8 ohms, 1 kHz, THD 0.9%) For special installations, the amplifier can be configured to support: 2 pairs of speakers either independently (A or B) or simultaneously (A and B), in addition to Bi“Amp fashion. 4K HDR, 6 HDMI inputs for system flexibility - Flexible connectivity with 6 assignable HDMI inputs and 2 outputs supporting HDR and HDCP 2.2.1 In addition the ZA3100ES allows full, native 4K video content pass“through to 4K capable televisions and projectors, and even up“scales high definition movies and TV shows to 4K quality. Digital Cinema Auto Calibration EX with speaker relocation technology - This technology balances output to closely simulate sound as would be produced by optimally positioned and angled speakers. The results are nothing short of breathtaking, with the entire sound field seamlessly integrated for outstanding surround sound.UBPX1000ES 4K UHD Blu Ray Player Get closer to reality with 4K Ultra HD Blu“ray„ - Play 4K Ultra HD movies1 at 4x the resolution of full 1080p HD, letting you watch your favorite scenes with a level of detail and clarity like never before. Play almost any disc and file format - The UBP“X1000ES works with just about everything you choose to play through it. This versatile 4K Blu“ray and multimedia player is able to play most discs, supports playback of the most poular USB video and audio file types, in addition to supporting a host of High“Resolution Audio formats. All you have to do is decide what to enjoy next. Hear every detail with Hi“Res Audio - Similar to the improved quality of going from HD video to 4K, High“Resolution Audio tracks are far higher quality than MP3s and even CDs, letting you hear every breath, every drumbeat, and every note.