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AV Forums said;
"The remote app operates in conjunction with the HEOS app, allowing you to move seamlessly from one to the other. This is a nice touch, allowing you to easily control all the functions on your X4400H using the remote app and also use the receiver as part of the HEOS multiroom system. All you need to do is switch into the HEOS app by pressing the icon at the top, allowing you to control all the devices in your multiroom system. We remain impressed by Denon's remote apps and, like the receiver itself, they are well designed and intuitive to use."

"The X4400H is as feature-packed an AV receiver as you're ever likely to see, with just about every audio and video format covered."

"When we moved on to lossless Dolby TrueHD and DTS-HD Master Audio soundtracks, the results were even more impressive. The 5.1-channel soundtrack for the film Interstellar uses plenty of dynamic range to surprise the audience, often going from very quiet to very loud in an instant. The X4300 handled these transitions well, proving extremely responsive, whilst other scenes allowed the soundtrack to use all the speakers to surround the viewer in the audio environment. When we switched to Dawn of the Planet of the Apes, which has an excellent 7.1-channel mix, the results were even better. The brilliantly conceived opening sequence is a masterclass in sound design with the breathing of the apes, the falling rain, the sound of movement in the trees and choral music all mixed together. The soundtrack slowly builds and when the hunt begins, the entire sound field burst into life and the Denon handled the change in dynamic range extremely well."

"Finally, we moved on to stereo and multi-channel music and the X4400 proved equally as adept in this area with a pleasing degree of musicality."

"Ultimately the X4400H is simply a great all-rounder that is sure to please anyone looking for an assured and fun AV receiver."

"The design, build quality and connections are excellent and the extensive features all work extremely well, with HEOS in particular being a useful addition. The Denon AVR-X4400H certainly does enough to compete with similarly priced AV receivers, making it worthy of recommendation"

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