The AVR: Denon X3400H

The choice of AVRs used to be a difficult one to make when support for different HD audio formats was not widespread. Now, the requirements boil down to the AVR being able to support the latest HD audio formats (Dolby Atmos and DTS-X), while matching the capabilities of the display in the chain. The additional features may help sway the purchase decision for consumers.

Budget considerations dictate the number of channels and display zones. We had to migrate from the 7.1 channel Pioneer Elite VSX-32 to a newer receiver capable of handling multiple HDMI 2.0 / HDCP 2.2 inputs with passthrough capabilities for various HDR formats. Based on my budget, I narrowed down the options to one of the models from Denon, Onkyo, Pioneer, and Yamaha. They are all in the same ball park in terms of pricing for a given feature set. We deferred to our friends at Wirecutter, who recommended the Denon AVR S730H.

I had been in touch with Denon regarding HEOS (their whole home audio solution) when the decision to go with a Denon AVR for our HTPC testing setup was taken. Upon discussing our project with them, Denon graciously agreed to sponsor the more advanced AVR X3400H for use in our testing.

The AVR X3400H targets the custom integrator channel. It has a number of additional features such as support for high end DSD audio, 4Kp60 upconversion for analog sources, multi-zone video outputs, higher power output, and support for eARC (Enhanced Audio Return Channel) to justify its higher price over the S730H. The presence of eARC makes it a bit more future-proof, as it allows for HD audio (including the new ones like Dolby Atmos and DTS-X) from the display sink to be returned to the AVR for decode and playback.

In the course of our testing, we found that the AVR received frequent firmware updates to add new features such as HLG passthrough. These point to a well-supported product. Even though the web control feature present in the previous generation Denon AVRs was missed, the Denon AVR Android app made up for it to some extent. None of the issues encountered in the course of the evaluation presented in this piece could be attributed to the Denon AVR X3400H.

If we had to give some suggestions to Denon for the improvement of the AVR X3400H, it would be to bring back the web control feature and shorten the time taken for firmware updates (though there is a facility to enable auto-updates that tries to install the new firmware when the AVR is not being used).

Speakers

Most readers upgrading their HTPC can opt to retain their existing speakers. In fact, I had the Boston Acoustics Horizon Series MCS100MDNT 5.1-channel speaker system from a 2008 purchase, along with a Jamo A306 HCS 5.1 speaker system from my 2011 home theater components upgrade. However, due to the remodel, I had to go in for in-ceiling speakers. I opted for a couple of the Polk Audio RC80i in-ceiling pairs for the rear and surround channel speakers. I bundled them along with ceiling speaker protective covers. The choice of speakers depends on the home theater size and other requirements. Currently, I am using the Jamo A306 speakers for the front, center, and subwoofer, with the Polk Audio RC80i for the other channels.

The Display: TCL 55P607 Evaluating Display Sources: HTPCs & CE Devices
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  • Bullwinkle-J-Moose - Thursday, December 28, 2017 - link

    Quote from edzieba.....
    "That's... not how things work. At all. Adding an S/PDIF cable is not going to magically allow transport of audio streams that:

    a) Are too high bitrate for S/PDIF (which cannot even carry 5.1 LPCM)
    b) Were developed decades after the S/PDIF standard "
    ----------------------------------------------------------------------------------------------
    You seem to be forgetting that "I make the standards for MY Home Theater Setup" / Not You!
    I was designing multi-channel Audio Systems before "your" alleged standards existed

    You are once again thinking you must use what the market dictates, even when the market standard is pure CRAP!

    I build for "MY" standards which seem to be considerably higher than yours
  • gerz1219 - Tuesday, December 26, 2017 - link

    By that logic, why even bother adding an AVR? You could just use the built-in TV speakers.

    The point of this article is to lay out what equipment is necessary to enjoy all the latest home theater formats and features. Keeping your old 720p plasma from 2008 is always the "budget" solution for people who don't need the latest and greatest. That's irrelevant in the context of this article.
  • Gasaraki88 - Wednesday, December 27, 2017 - link

    You obviously don't know anything about new technology. TOSLINK is not going to pass Dolby Atmos and DTS:X from the TV to the receiver.

    So get out of here.
  • Bullwinkle-J-Moose - Friday, December 29, 2017 - link

    "You obviously don't know anything about new technology. TOSLINK is not going to pass Dolby Atmos and DTS:X from the TV to the receiver."
    -------------------------------------------------------------
    LOL, I obviously do

    I created better standards than Dolby ever did and was doing it before Dolby ever created their very first surround format

    I simply choose to get better audio imaging accuracy through carefully matched drivers, hybrid crossovers and components and custom circuitry

    I could easily encode audio to the vast majority of new technology "Standards" you ramble on about but can easily surpass the imaging accuracy of others by using a higher standard........

    My own!

    But for a "BUDGET" Home Theater system, I cannot personally make a better speaker than the JBL LSR305

    and I DO NOT need an AVR if I will not be using the pseudo Standards of others

    Tell me, if the "New Technology" you speak of is the "Standard" that everyone must use, then what EXACTLY is NEW and why so many "Standards" ?
  • Reflex - Friday, December 29, 2017 - link

    I can't wait to try all the content coming out in the BJM standard!
  • Bullwinkle-J-Moose - Friday, December 29, 2017 - link

    "I can't wait to try all the content coming out in the BJM standard!"
    ---------------------------------------------------------------------------------------
    It may be a long wait
    Much of the best tech fails in the audio market

    Blatant Lies, slick/false advertising and pseudo standards usually win in the marketplace

    Does that make them better?
  • Reflex - Friday, December 29, 2017 - link

    It's just not important. The content is being mastered in Dolby Atmos. It's reasonable to build a system that supports that so that I don't miss out. No clever component choices nor ideal speaker placement can change the fact that if I'm running a setup that isn't Atmos capable it won't generate Atmos effects when I play back such content. And quite frankly Atmos is the biggest leap in audio I've seen since 5.1 first hit.

    I'm glad what you have works for you. If that's all you need there is nothing wrong with that. For myself after trying Atmos at a friend's I wanted it at home and it was well worth the upgrade.
  • JSStewart - Thursday, January 4, 2018 - link

    Hokey smokes, who cares what a stupid moose troll thinks?

    I will go with the squirrel any day.
  • wiyosaya - Friday, January 5, 2018 - link

    It's called technological progress.
  • wiyosaya - Friday, January 5, 2018 - link

    or even DTS HD-MA or Dolby TrueHD

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