iFi Audio ZEN Stream Review

iFi Audio ZEN Stream


Layout & Features

Let’s start with the front. From left to right we have: the power button, the power LED, the network LED, the Frequency LED, hotspot LED and the hotspot button.

The Audio Format LED/Frequency LED has the following meaning:

– Green: PCM 44.1/48/88.2/96kHz

– Yellow: PCM 176.4/192/352.8/384kHz

– Cyan: DSD 64/128

– Blue: DSD 256

– OFF: No Streaming

It’s a very tight and basic front lay-out, but it’s all you need really. Maybe a screen displaying the audio format and frequency would have been sexier, but he colors do work and they’re easy to figure out.

On the back of the unit we from left to right find:

– WiFi antenna

– Exclusive mode selector

– Coaxial output/SPDIF (with the iFi Audio iPurifier built in)

– Dual USB ports (USB 2.0/3.0 with ANC. Input to connect to DAC + output to connect to HDD, USB Drive, etc)

– USB-C port for FirmWare upgrades

– LAN/Ethernet connector

– Reset button

– Power connector

Both of the two digital outputs – asynchronous USB and coaxial S/PDIF – that provide connectivity to an external DAC or an amp with digital inputs are regulated by iFi’s femto-precision GMT (Global Master Timing) circuitry to eradicate jitter from the digital audio signal.

iFi Audio ZEN Stream


  • Powerful 64-bit quad-core ARM Cortex microprocessor
  • USB and S/PDIF interfaces regulated by femto-precision GMT clock to eradicate jitter
  • Active Noise Cancellation II and iPurifier technologies for USB and S/PDIF interfaces respectively
  • Intelligent Ethernet switch controller
  • High-PSRR, low idle current, low-dropout voltage regulators with soft start
  • Synchronous 1.6MHz high-speed precision power supply controller
  • C0G capacitors and Taiyo Yuden and Murata low ESR inductors

Input Voltage: DC 9V/1.8A-15V/0.8A / AC 100 -240V, 50/60Hz

Input: Wi-Fi / Ethernet / USB HDD (Firmware updates via OTA and USB-C at rear)

Formats: PCM384/DSD256 (MQA-fully compatible)

Output: USB3.0 (Type-A Socket) x 2 / SPDIF (Coaxial)

Power Consumption: No Signal ~6W / Max Signal ~10W

Dimensions: 158 x 100 x 35 mm (6.2″ x 3.9″ x 1.4″)

Net Weight: 589g (1.44lbs)

iFi Audio ZEN Stream

The iFi Audio ZEN Stream is a true hi-res device. It uniquely supports PCM up to 32-bit/384kHz over Wi-Fi as well as Ethernet cable, plus DSD up to 11.2MHz (DSD256) which is still unusual in most Wi-Fi streamers.

If you still want to know more about the tech stuff and features, please check out the iFi Audio documentation here: https://ifi-audio.com/wp-content/uploads/2021/06/iFi_ZenStream_Lowdown_01.pdf


Setup & configuration

This is one of the reasons why I like the ZEN Stream so much. You don’t need to be an IT professional to get it working, and you really just have to follow the QuickStart guide.

Basically you need to get the ZEN Stream connected to your home network, in a cabled or wireless way. Once that is done, the pleasure can start as the unit will be picked up by Roon, Spotify, etc directly if they are on the same network. In Roon just make sure to select the iFi connect and not Airplay if you’re on a Windows device.

iFi Audio ZEN Stream

Also, once set up and connected you can browse to the ZEN Stream (http://ifi.local/), and go in to the settings menu to, well, set everything else up. You can also use that menu to play music directly from your NAS, web radio or your connected drive, though I really haven’t tried the latter

iFi Audio ZEN Stream

Enjoying music

I have to admit that when I’m at my main desk home working, I tend to use a cabled USB DAC instead of a streamer or wireless receiver. It’s different when I’m listening to music at my work place or when I am in the living room or kitchen. In these latter cases I move around a lot more and I can’t possibly use a USB-Cable to hook up to a DAC. It also are the times when I am using my speaker system most of the time, and for me the ZEN here is an ideal companion.

Tidal or Spotify? Select what you want to hear and click play. If I’m in the mood for album that can’t be streamed I just choose the album on my NAS using the ifi.local “page” and play that. It’s incredibly easy, and incredibly fast. Change of moods? Wife complaining “Bring The Horizon” is too loud? No worries! Take your phone out of your pocket and select something different and click play. Done. Happy wife, happy life.

iFi Audio ZEN Stream

Basically the ZEN for me is the ideal link to all of my music. All you need is the ZEN, a working Wi-Fi connection and a phone. And of course a DAC etc, but we had that anyway, right? 😉

Continue reading the review on the last page. Click HERE.

Page 1: iFi Audio, Intro, ZEN Stream, Design & Build Quality

Page 2: Layout & Features, Specifications, Usability Part 1

Page 3: Usability Part 2, End Words

4/5 - (165 votes)


Lieven is living in Europe and he's the leader of the gang. He's running Headfonia as a side project next to his full time day job in Digital Marketing & Consultancy. He's a big fan of tube amps and custom inear monitors and has published hundreds of product reviews over the years.


  • Reply October 5, 2021


    no comparison to other streamers? or sound quality depending on different outputs?

    • Reply October 5, 2021


      The reason why there are no comparisons is in the article.
      SQ Coax vs USB? No noticeable difference with this one

      • Reply October 6, 2021


        Will be looking for your next streamer reviews :). just feels incomplete to have a review without a comparison to other similar products or a benchmark. I do appreciate the fact that there haven’t been streamer reviews in the past on this site

  • Reply October 5, 2021


    Not a review in my opinion, seems more like add, but ok.
    We can understand now it is raspberry pi with volumio and does not have Chromecast.

    • Reply October 5, 2021


      Your comment got marked as spam. I “unspammed” it, though maybe the system was right 😉
      Not everyone is an IT specialist and knows a thing or two about the pi and how to build and configure one. So it’s good to see these kind of solutions from iFi and others.
      Of course for those who do know it, can do it and can put it in a nice enclosure, that certainly is the best/cheapest way to go. So for you this is nothing spectacular, but for others it can be, just take that into account.
      And in regards to this streamer, it really is a simple to use, super versatile one. So yeah, people will/do like it.

      • Reply October 5, 2021


        Thank you for yor answer. I think this is nice product too.I just think your review was flat and you omitted important information for buyer. Also this was your time to say it is not Raspberry pi, because it is not, i was not right.
        Anyway, good luck.

        • Reply October 5, 2021


          I never said this was a Pi. I said that if you know the Pi tech, you can build a streamer yourself 😉
          I don’t feel any info is missing at all though, we disagree there, but thanks for reading/the comments

  • Reply October 5, 2021

    Marc Walbert

    I do own a zen but I found difficult to engage with the streamer
    The price is very sharp and I do not understand all the services you get for that price.

  • Reply October 28, 2021


    I just bought a zen stream. Ehat do you recommend as a DAC- zen dac or use my DF cobalt?

  • Reply August 5, 2022

    Doug Z

    I just set one of these up for a friend. It sounds good but other than that I’m not impressed. Very slow accessing the the hard drive, album art showing up is hit or miss, the built in radio app is poor and doesn’t stream in high rez stations that I know are, it won’t stream high res from the tune in radio app and it won’t stream high rez from Radio Paradise…if it can, I haven’t figured it out and have been searching the internet for two hours trying to find out if it’s even possible with no success. My Bluesound Node BLOWS THIS AWAY. The only reason my friend went with this is because he wanted a usb output for his dac.

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