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The device described in the page below is evidently Denon's fix for their current HDMI 2.1 implementation. Marantz has announced it is using the same device. The fix provides the opportunity to turn your AVR into a two piece AVR partly powered by a wall wart. Impressive... The next shoe to...

Per the Denon website (Google translation from Japanese) in Japan in the product information for at least the X4700H and X6700H AVR's: "The D / A converter IC has been changed since the spring of 2021." The previous DAC IC in the two products is the 8-channel AK4458. This is a rather...

The power differences between the X8500H, X6700H, X4700H and X3700H are about 1dB. If the requirement is for an AVR with only the internal amplifiers used, and with the number of power amplifiers that the X3700H or X4700H provide, then the lower price products provide a little cleaner power with...

The following graph from the Denon X6700H updated measurements is very valuable in understanding the performance of Denon AVR's and other AVR's and AVP's as well. One of the major challenges in design of an AVR/AVP is volume control for a large number of channels. There is also a related issue...

The power differences between the X8500H, X4700H and X3700H are about 1dB. If the requirement is for an AVR with only the internal amplifiers used, and with the number of power amplifiers that the X3700H or X4700H provide, then the lower price products provide a little cleaner power with about...