DENONのAVR-X6400HとAVR-X4400H
https://usa.denon.com/us/product/hometheater/receivers/avrx6400h
https://usa.denon.com/us/product/hometheater/receivers/avrx4400h
http://manuals.denon.com/AVRX6400H/NA/EN/index.php

AVR-X6400HとAVR-X4400Hはどちらもビット拡張がAL24 Processingから
AVR-X7200WAと同じAL32 Processingに、D.D.S.C.-HDがD.D.S.C.-HD32に格上げ

TEST : Denon AVR-X4400H
http://www.lowbeats.de/exklusivtest-dolby-vision-av-receiver-denon-avr-x4400h/

ELACからミドルハイ級スピーカー「ADANTE」登場
http://www.phileweb.com/news/audio/201708/21/18984.html
http://av.watch.impress.co.jp/docs/news/1076408.html

TEST : Denon AVR-X6300H
http://audiovision.de/2017/08/22/denon-avr-x6300h-test/

Denon AVR-X2400H vs Sony STR-DN1080 vs Yamaha RX-V583 ? which is better?
https://www.whathifi.com/features/denon-avr-x2400h-vs-sony-str-dn1080-vs-yamaha-rx-v583-which-better