Denon AVR-S650H has 5 channel amplifier and delivers 75 W (8 Ω, 20 Hz - 20 kHz, 2 channel driven). It has stable performance at 4 Ω load. Since 2016 all receiver manufacturers have dropped front wide channel support in all their models and Denon AVR-S650H is no exception in this.

7.2 channel full 4K Ultra HD AV receiver with 165W per channel (6 ohms, 1 kHz, THD 10%, 1ch driven), Dolby Atmos®, Dolby Atmos Height Virtualization Technology, DTS:X™, DTS Virtual:X®, new eARC support, HDMI (6 inputs/ 1 output), Wi-Fi, Bluetooth and HEOS built-in wireless multi-room music streaming and voice control compatibility

7.2 channel 4K Ultra HD AV receiver with 80W per channel, HDMI (6in / 1out with eARC). Supports 3D audio formats Dolby Atmos®, Dolby Atmos Height Virtualization Technology, DTS:X™ and DTS Virtual:X®. Works with Amazon Alexa, Google Assistant, and Apple Siri for seamless voice control. Ability to connect Bluetooth headphones.

MP-60 is equipped with all the advanced technologies for which Lyngdorf Audio is known, including the renowned room correction system RoomPerfect™ and the unsurpassed quality in digital signal processing. Together with the Steinway Lyngdorf version, the P300, the MP-60 is developed at the group headquarters in Skive, Denmark.

With extreme audio processing options combined with the most powerful and advanced digital amplifier technology, the TDAI-3400 is the most powerful product from Lyngdorf Audio yet marketed.

The MP-50 surround sound processor from Lyngdorf Audio is built for the demanding audiophile who requires the ultimate video performance. It is a scaled down version of the Model P200 from Steinway Lyngdorf. Where the Model P200 is built for a closed, ultra-high-end system, the MP-50 can be combined with any other brand on the market.

Designed, developed, and manufactured in Denmark, the TDAI-2170 is a masterpiece of substance and style. The amplifier’s chassis—a salute to modern industrial design—is built like a tank and dressed in the signature black finish that fans of Lyngdorf Audio love.

Yamaha's RX-V585 lets you turn any living space into a home theater, and it even gives you a few options for expanding your system into other rooms. This powerful 7.2-channel receiver offers plenty of customization options for thrilling movie sound, plus it offers playback of several different high-resolution audio formats through its front-panel USB port or a networked computer. The 'V585 delivers a truly lifelike movie experience when you match it to a 4K Blu-ray player and Ultra HD TV. Dolby Atmos and DTS:X decoding give you 360-degree surround sound to match the stunning picture.

Yamaha's RX-V685 is loaded with up-to-the-minute features and convenient customization options so you can set up your ideal system for movies and music. This feature-packed receiver delivers a truly lifelike movie experience when you match it to a 4K Blu-ray player and Ultra HD TV. Dolby Atmos and DTS:X decoding give you 360-degree surround sound to match the stunning picture.

The Yamaha R-S202D represents a worthy alternative for those seeking a smooth sound and wireless connectivity on a budget. The R-S202D does have mass-market appeal, however, is in its range of features. Bluetooth is arguably the most important one, meaning you only need to add a comparatively priced and comparably talented pair of speakers to create a basic, but worthy, system.