WiiM Pro AirPlay 2 Receiver, Chromecast Audio, Multi-Zone WiFi Streamer, Compatible with Alexa, Siri and Google Assistant, Stream Hi-Res Audio from Spotify, Amazon Music, Tidal and etc.

Not tested: Multi-room setup as I only have the one deviceNot tested: All music streaming services.Not tested: How well it works locally when the Internet is down.Not tested: Optical or Coaxial digital outNot tested: Line inThis device looks cheap, because it is. It is however very impressive what this device can do.I came across the device after I searched to find anything that would support streaming ad-hoc audio into it via Bluetooth, AirPlay and Chromecast Audio and this was what I found. So before testing the streaming music services I tried out all of these features.They all worked, and by having them all integrated into one device and with the unit treating the last person to connect *and* start to play content as the source. There is no need to switch inputs as would be the case for separate devices for each protocol.Bluetooth:As a mini computer, one cool feature about the Bluetooth implementation is that it will rename the advertised name of the device with the name you give it. Most dedicated Bluetooth receivers don't allow this and instead users must set aliases in each device. Interestingly enough the device can also output over Bluetooth too (though the input must not be bluetooth in this case). So even if all you owned output wise was a Bluetooth speaker say with no line-in or away from this unit you can convert it to an Airplay, Chromecast and streaming device by hiding this box away somewhere.Only the SBC and AAC codecs are supported but streaming from and Android Phone and an iPad worked well.When playing Bluetooth content, where supported the WiiM Home app will show the track title plus and bitrate albeit with the DLNA logo instead of a bluetooth or codec logo. Track skip, pause/play buttons work from the app, the unit and the remote.Airplay: This worked fine from an iPad Pro and Macbook Pro. When playing from Apple Music, the skip track features worked. The display was incorrect for the first track just showing that Air Play was in use, but when the second track started playing then the track name and album art appeared. Changing album caused the text detail to change but the album art shown in WiiM home Mac Os App got stuck permanently. The same happened in the Android app but restarting fixed it. The iOS app correctly updated album art. The Android app may update the top widget but not the lower one. So the apps are pretty buggy in correctly showing what's playing.Chromecast Audio: I tested this both from an Android phone, within streaming apps where the WiiM Pro would pull the content from the Internet but also where with the 'Cast screen to device' option which works fine for audio only. I also tried the in app casting option from Youtube running in Chrome on a Mac and this worked too.Having these 3 options available at a party, local pub or performance venue (say for a backing track) would make it easy for a person with a phone to cast their music without having to download any particular app or have the correct cable which I think is a came changer.The auto source switching also works on the line-in input, so legacy things like CD players or hipster record players (via a photo pre-amp) would work well with this device being the permanent input to a power amp, as simply playing a new source will switch to it, without people having to be technically minded about source selection. The input source is shown hidden away at the bottom of the 'Browse' screen in the app. It would be nice if the main LED would change colour for different input sources as although with the remote there is a source select button, there is no way to see which source is selected on the unit itself.DNLA (UPnP) Render Device From Bubble UPnP:This worked correctly with the art display, track skip etc all working too. I doubt many people even know this is a thing but it is a tech for streaming content over a LAN.Local content direct from WiiM Home App:I could play local media from the app directly (This is DNLA under the hood)Streaming Services:Spotify worked well. Tn this case the integration is done between the WiiM Home app and the Spotify app and uses 'Spotify Connect' as the protocol. This worked at first via an Android phone but could get into a state where both the Spotify app and the WiiM Home app thought the content was playing via the WiiM Home showing the track name etc, but the sound was coming out of the phone speaker. It was possible to switch to Chromecast Audio (called Google Cast in Spotify) within the Spotify app to hear the sound.Rebooting the device fixed that, and the reboot can be done in the WiiM Home App.Exiting the Spotify app then worked as expected and the WiiM Pro app kept showing which track was playing and allowed to skip etc.If choosing to use Chromecast Audio instead of Spotify Connect, then all the functions worked too with the WiiM pro advancing through the playlist etc.Youtube Music is not supported other than via Chromecast Audio (or Bluetooth), and unlike Spotify there is no launcher shortcut from the WiiM Home app. The WiiM home app does correctly show the name and album art. This of course includes all instances of the app on all platforms.SoundCloud supported getting an OAuth token for the device to talk to sound cloud directly. This meant that the WiiM Home app could search content without having to use the Soundcloud app. The app offered search just within Soundcloud which was nice and the global (cross streaming services) search worked too.Amazon music worked, with search etc working.So streaming service direct integration is one place where this unit lacks. It can't do what a Sonos can do and aggregate searches across all streaming services because not all are fully integrated. I bet however that most people don't want that. They don't want to use a custom app and would rather use the native app of each streaming service.Local music collection on NAS:Here is where the unit is missing the features of Sonos. You can browse content on a NAS which supports DNLA but that is it. It can't index it or anything else. It does not support SMB.Summary:This device is a modern take on a home music streaming system and the feature set implemented is that which most new users will want. Having at least 5 ways to stream content from a native phone app (Airplay, Chromecast Audio, Bluetooth, Spotify Connect, DLNA) if you have a phone in your hand and want to play music out to a HiFi on any legacy powered speaker connected to this this it will work.Streaming service *deep* integration is somewhat secondary and therefore so is streaming service aggregation. This won't be a problem for most people as they will use the streaming service app directly as that is what they are used to when buying a device like this for the first time. They won't want to learn a new app. Only people with systems like a Sonos will know what this is, so if it doesn't sound important to you, then don't worry about it.Streaming from a NAS is missing in action.It looks like the Pro might add some of the missing features and that will help distinguish it from the Mini.I don't own a mini. At present the main advantages of the Pro appear to be:* Chromecast Audio* Wired Ethernet* Optical line in (may be good from a CD/DVD player or TV set top box - I doubt AC3 pass through is a thing)* Some other features listed on the WiiM websiteSo in buying a pro, you are sort of paying for the development of features that don't yet exist as although the hardware is much better, it may not be fully utilised yet. Sometimes buying the better hardware is also worth it as the device may last longer before being considered to puny for the next big popular service.I am happy as I wanted the Chromecast Audio support.

I love the WiiM Pro. Until I got the WiiM, I was sitting on the sidelines with streaming, other than having a Spotify account for playing music in the car or on my iPhone when I'm on the go. It seemed too complicated and expensive to me to buy any complicated streaming hardware for my home system.This year I decided to look again at the home streaming options to see if I should get onboard. I read about the WiiM Pro and decided to try it. I'm glad I did. When combined with a high-rez music streaming service, it's amazing how good streaming music can sound, and the cost barrier to entry is now incredibly low with the WiiM Mini and Pro. Assuming you already have some kind of music system, that's all you need (along with a streaming service).I got the Pro over the Mini because of the extra inputs and outputs, and especially the wired Ethernet cable option.I don't have a whole lot to add to other reviews, but in my review I want to explain how I hooked up my turntable to one WiiM Pro so I could broadcast that signal to my other WiiM Pro in a different room using WiiM's multiroom functionality. I have a ton of old records that aren't on any streaming service and I thought it would be nice to be able to listen to them in different rooms, since I only have one turntable. Buying two WiiMs made this possible!I connect my turntable to a vintage stereo preamp with a phono stage in the conventional way through the preamp's phono inputs. My preamp has "tape out" output jacks and I run a stereo RCA interconnect cable from the preamp "tape out" into the WiiM Pro's "line in" RCA inputs. The setup would be similar if you have an integrated amplifier (preamplifier + amplifier combined in one component) or a receiver.For that WiiM Pro, in the WiiM Home app, set the "audio input source" to "Line in". (Remember to set it back to WiFi or Ethernet when want to switch back to streaming from a music service). Play a record, and on your preamp set the "source" to phono. If your preamp has "tape out" outputs like mine (it might also be called something like "record out") then the preamp will send the music signal into the WiiM. You want to use the preamp's "tape out" outputs and not the "line out" outputs that you would send into an amplifier. This is because the "tape out" occurs after the phono equalization stage in the circuit, but before any volume, tone or balance controls; it's basically the pure unprocessed music signal.Next, in the WiiM Home app, follow the instructions in the online manual to configure multiroom audio. The included paper manual in my box was very basic and didn't explain this.As of my writing this review (Feb 2023) the way to do this is in the WiiM Home app (iOS) is to first make sure you have both WiiM's already setup. Next, start with the WiiM that's connected to your turntable. In the "device" setup area, you should see both your WiiMs. Tap the WiiM that's connected to your turntable to select it then press the nearby "link" icon (looks like two connected chain links) for that WiiM. This open a little chooser where you can see the other connected WiiM's in your network. Press the checkmark next to the other WiiM(s) that you want to play the same signal being broadcast from the first WiiM. Now go listen to your music.A few more notes and details:* With a setup like this you can plug any source, not just a turntable, into a WiiM (via a preamp or possibly directly) and play it on your other WiiM. For example, a CD player. FM tuner. Cassettes. Your beloved 8-track tapes. R2R tapes. Maybe a 78 rpm turntable?* In my configuration, playing a record, sending the signal through a ADC, into the first WiiM, streaming it over AirPlay 2 (I think that's how it goes?) into the other WiiM, and then decoding it back through the DAC in the other WiiM (or your own external DAC) is undoubtedly losing resolution compared to playing that same record through an all analog system. But it still sounds pretty darn good. I haven't compared playing a record this way vs playing the same album via a streaming service (like TIDAL, Amazon Music, etc.) but I would guess they are fairly similar in resolution and quality. If that album is in HD (like 24/92 or higher) on the streaming service, the steamed album might beat the vinyl album once it's downsampled over AirPlay. But my old albums are either not on a streaming service or if they are, they are probably in 16/44.1 or lower so it may be a wash.* One benefit of multi-room audio is to be able to play the same song in multiple systems and be able to go room to room and hear the same song seamlessly. With my configuration, I wasn't able to play the record in my main system (turntable -> preamp -> amp -> speakers), while also broadcasting it to the other WiiM, without unacceptable latency. The downstream WiiM was around 1 second behind my analog system. If you think about it, the main system is playing the signal instantaneously while the other WiiM is getting a slightly delayed broadcast. So I'm not criticizing WiiM for this, there is nothing they can do about it. By contrast, if you use both WiiM's to stream music as receivers, they are able to stay in sync because both WiiM's can "work together" to sync the music, but not when one of the two systems it not even playing through the WiiM. If the systems are close enough that you can hear the speakers from both systems at the same time, then it will be unlistenable because of the delay. But if they are far apart then you might be OK.* Earlier in this review I wrote that I am outputting my stereo preamp directly into the WiiM. Later, I placed an external analog-to-digital converter (ADC, not to be confused with a DAC which does the reverse) between the preamp and the WiiM. I ran an interconnect from the preamp "tape out" into the ADC, then connect the ADC from its digital SPDIF (optical) output into the WiiM's SPDIF input, and in the WiiM Home app, I changed the "audio input source" to SPDIF. This is purely optional but I'm putting it out there as an option for anyone who has a ADC.* I haven't done any critical listening to see if my external ADC is better than the WiiM's own internal ADC but If I get around to that, I may update my review. My ADC is a cheap Hdiwousp $17 device I got on Amazon.com which claims to convert to digital up to 96 kHz. I can't confirm that.* Finally, I left this out of my review above, but before I got the WiiM, I bought a Bluesound Node. I regret that. The WiiM is just as good. The only advantage the Node has is the HDMI input and subwoofer output which personally I'm not using. Maybe the Node app is better. The DAC in the Node might be better but I have an external DAC anyway. But you pay $450 more for the Node. I am selling my used Node on an online auction site now.

Ok, I've had these for about a week now, and I got a 3rd one a few days ago. Overall, I really like these. They're not perfect, and I think I even found a couple of bugs; but they're very flexible and they enabled me to get a multi-room audio system setup.tldr:1. Play music from your source (eg phone, computer, cd, ...)2. WiiMs receive the music and route it to your sound system(s) (even BT speaker)3. Many networking possibilities4. Enables whole home (3+ rooms) audio5. Supports YouTube Music (mainly via BT; Chromecast has issues)6. Might be better off w WiiM Mini for YTM (for now)7. There's a WiiM forum and it seems useful**So, real quick, this thing is a "network streamer". It's basically a music router! It gives you many ways to get digital music routed into one or more sound systems, depending on your needs. I gather some "audiophiles" are just using this to connect to fancy hi-fi systems. (I don't know much about that.) I'm using it to create a whole-home audio system, so I can listen to my music as I go about my business in the house.**As I said, my goal was to setup a whole-house audio system, using YouTube Music; which has been my only music source for some years now. I have a couple of BT speakers, and a TV audio system; which includes a control/subwoofer unit, plus a sound bar. Each speaker/system is in one of the 3 rooms I wanted to cover.I was finally able to get things to work nicely with 3 WiiM Pros.1. Pair phone to WiiM Bedroom via BT2. WiiM Bedroom & Kitchen are connected to a BT speaker via RCA to 3.5 mm audio jack3. WiiM Basement is connected to TV audio system via Toslink (SPDIF)4. WiiMs are grouped via WiiM Home App5. Start playing YouTube Music6. In WiiM Home App, bump volume up and then down again to get sound going. 1. Alternatively, bump volume on WiiM BedroomSo, the music goes from the phone, over BT, to one WiiM; then that WiiM (I guess) passes the music over my wifi network; and somehow the WiiMs play the music in a synchronized fashion. They're all playing in time - neither one is ahead of the other. And the sound is good. Just as good as if I connected to those BT speakers directly from my phone. (Never connected directly to the TV sound system before.)I also have the WiiM Bedroom BT speaker paired to my phone; so if I want to take it into the shower, I just switch over to that in my phone.**Originally, I tried using JBL PartyBoost for whole-home audio; but that suffers severly from interference. I also tried simply pairing and playing both BT speakers simultaneously; but 1) BT is currently limited to 2 audio outputs, and 2) BT speakers don't stay in sync. One sounds ahead of the other.**I originally tried playing YTM to the WiiMs via Chromecast; but it sounded bad. It seems to me that YTM secretly has a volume leveling feature, which keeps all the songs playing at a nice, consistent volume level. But if you play over Chromecast, some of the songs are really loud, and some are quiet. I'm blaming this on Google.Also, when I connected Chromecast > RCA/3.5mm, I think there was something else wrong with the sound. I think it's a bug in the WiiM. It sounded like some kid bumped a couple of the EQ bands or something. In one song, there's a part where the girl's voice would get louder, suddenly. In another song, part of the low-mid sound was flattened, and it sounded a bit staticy/hissy. The songs themselves played the same every time; but I kind of think each song was affected uniquely.Now, when I connected Chromecast > BT, this second issue went away. I.e, Phone > Chromecast > WiiM > BT output > BT speaker; this "weird EQ" issue goes away. Other than some songs playing louder than others (which I blame on Google), the sound is normal, like I'm directly paired to the BT speaker.So, since I'm able to get "good EQ" via BT > WiiM > RCA/3.5mm; and via Chromecast > WiiM > BT; this proves the "weird EQ" on Chromecast > WiiM > RCA/3.5mm is a WiiM issue, and not a Chromecast issue.I would think this is something WiiM can fix with a firmware update; which it seems they do often. I'll try to check on it once in a while and update if it becomes fixed.**So, if you're looking for whole home audio using YouTube Music, then you're probably better off with the WiiM Mini, since there are issues with Chromecast. Of course, if you need the ethernet jack for your network, then you'll need a WiiM Pro. Also, if you ever decide that you do want the Chromecast version; then you'll end up having to switch.**I mentioned that I bump the volume in the WiiM Home app to get the sound to come out of my main speaker. I don't remember this part very well. It might be a WiiM issue; but it might be a JBL issue. I kinda think it has to do with using the 3.5mm jack on my BT speaker. I think I had to do the same thing once when I connected my phone to the speaker's 3.5mm jack. I can also work around it by bumping the volume on the WiiM box. I only have to do this on the source WiiM box, I think.**It's actually really cool that WiiM can output BT! I used it this way for a day or two. The bad thing is that when you output via BT, the BT speakers themselves don't stay synchronized. I believe this is an issue in the design of Bluetooth; not a WiiM issue.But the cool thing is that this does enable you to have whole home audio if all you have are BT speakers without 3.5mm jacks (or perhaps any other interface). If you can tolerate the echo sound, when you pass between rooms, of course. In my house, once I'm in the room, I don't hear the echo. I think it's not as bad if all the speakers are the same model. It probably has to do with the embedded computer inside the speaker; so even if the speakers are different models, they might still sync up pretty close. I found this to be the case with two JBL Xtreme 3 and a JBL Boombox 3. But a Soundcore Motion Boom has way different timing.The other cool thing BT output enables is you can just grab a speaker and move it while it's playing. I grabbed my bedroom speaker and took it into the shower. And all the while I was still able to control it on my phone.**The last thing is there's a WiiM forum, and I like that, because for a sophisticated device like this, a forum can be really helpful. And it seems like there's actually people posting stuff on there. I described a couple issues there, and I'm hoping the WiiM people pick them up and fix them. In any case, I haven't actually gained any significant benefits from the forum yet; but I though it was a good point.

Note: this review is written with existing Chromecast Audio (CCA) users in mind.I needed another CCA to add a new location to my NAS-based (DLNA) distributed music network. But there are no good CCA-compatible products on the market except the original Google CCA, at inflated prices. Don’t tell me all about the “many CC-compatible speakers available”. They are all overpriced, under-powered, and inferior in every way to my own existing sound equipment and operating Apps. (that is a whole rant, isn’t it?)After reading so many good reviews as well as the WiiM website information, I bought a WiiM Pro. Although 2-3 times the price of an available used or new CCA, the WiiM Pro is a better buy if you might use any of it’s multiple other capabilities. Only a few of them are discussed in this review.Although not advertised, I was hoping that the WiiM Pro could also act as server/source to other CCA devices in the same way that it can to Airplay and its own proprietary LinkPlay protocol. No luck here, not a CCA source device. But a quick check showed that the WiiM Pro shows up on my Yamaha receiver as an Airplay source (my only Airplay compatible device).Build quality – better than expected at this price point. It is attractive and solid (although not heavy). The front panel controls and remote control nice bonuses even though I do not expect to use them. Back panel I/O is laid out well and clearly marked. The remote control has a nice feel for just a bonus item, and includes four Preset buttons (more later).Operation - I got it working right away as a CCA clone using only the Google Home App. I did not have to enable Chromecast within the WiiM App. REPEAT, you do not need to use any App besides Google Home to get this product to operate as a replacement CCA right out of the box. It worked well to address individually and could join in my existing “Speaker Group” as well. You could say it operates exactly like a CCA.To see what eIse the WiiM Pro could do, I installed the WiiM App on a 10” tablet. The GUI is clearly geared for smaller phone screens, so it looks rather basic on a large screen. I was amazed at how deep the App actually goes, especially the Browse function which brings up the many available source interfaces. Useful music sources include: My Music (local device), Home Music Share (DLNA), and most popular music services like Amazon Music, Pandora, Spotify, iHeartRadio. Open Network Stream allows you to enter a music URL directly. 12 User Presets allow you to save stations, songs, and albums from most of these sources for quick access.Once you have set up the WiiM Pro how you want to use it, you can abandon the WiiM app and use any other app that can normally address a Chromecast device. I have been using Hi-Fi Cast for years as the best all-around audio controller app, which can see most types of networked music sources and playback devices . It saw the WiiM Pro and speaker group just like any other CCA device. Also worth noting, my Window PC and Android tablet running the Chrome browser also saw the WiiM Pro as a Google device to cast to. For some reason casting was not offered from my cell phone’s Chrome browser. Probably just incorrect settings.Music ServicesI tested only the services that I might be using, with the following results:Amazon Music – streamed well but interface was not any better than Amazons own (=terrible). BButtons can be slow or even inoperative. Most everything I found could be set to a Preset.Pandora – all my personal stations showed up here, and could be saved to a Preset.Tune-In – kind of confusing interface, but it all works. (tons of commercials, ugh!).VTuner – could not get this to work at all, it did not ask for my VTuner account info either.BBC Radio – offers 12 channels which work fine and could be saved to a Preset.Home Music Share – big problem here; it can see my NAS Twonky DLNA server but access to content comes and goes. Other apps can see and use my NAS no problem.Conclusion here: I will use other apps to stream audio to the WiiM Pro.Sound Quality – This is not that important to many people, which will just use the analog output of a CCA or WiiM or any device But you have read this far, so I can assume you ARE concerned with sound quality. I use the Optical output of my CCAs in my two main systems. Yes! that 3.5 mm jack is an analog and optical digital audio output, you just have to use a mini-Toslink cable.I casually compared the WiiM analog output to the CCA Optical output and could not detect a difference. However, I mostly stream compressed audio for foreground music. I do not subscribe to any hi-res services because I have extensive CD and record collections.If after reading all this you didn’t find the info you needed, I recommend downloading the owner’s manual and reading sections pertinent to your needs/wants.

Final Thoughts…Yes, 4 stars, but buy it. Particularly for someone building an introductory system, I think it is more advantageous to think of the WiiM Pro [Plus] as a *preamp* with streaming capabilities. Besides a quality, networkable source, you are getting…☑️ Digital and analog inputs☑️ Digital and analog outputs☑️ DAC (go Plus if you need it)☑️ ADC☑️ DDC (?? No USB, but optical/coax)☑️ Input/Output selection☑️ Volume control☑️ Tone control (including parametric 🤯)☑️ Remote control (save your money and use the app)Add a Class D amp, speakers and some cables, and you are off to the races with no deep commitment to separates or an integrated system. Let your curiosities lead you from there… In any event you’ll still have a killer streamer.The caveat… This is an affordable work in progress. It has bugs. As with any integrated system, a separate DAC will almost certainly outperform what’s inside (I don’t know, but I assume this applies to the ADC as well). Also, if you plan to use Tidal, you are shopping in interesting times [I’m writing this on Sep 7, 2023]. Though Tidal has all-but-dropped MQA, they have yet to roll out FLAC to third-parties such as WiiM. Meantime, the Pro is equipped for MQA and your sample rate will be capped at 96kHz even if you’re paying (like me 🤦‍♂️) for 192, though the bit depth will go up to 24. The good news is sample rate is not the “whole story,” and this is a non-issue on Amazon. [Update Nov.1: Support for TIDAL Hi-Res FLAC via TIDAL Connect - Direct streaming enabled up to 24-bit/192kHz straight from TIDAL App 🥳]I’m not sure this generation will ever be *perfect,* but WiiM is regularly updating the firmware, and I enjoy this thing most days. The rest of my journey is logged below. Happy hunting ✌️Update 4/5:Writing this on Aug 16, 2023. The good news... WiiM is keeping up with the updates, which is promising. The bad news... The Pro switched inputs in the middle of watching TV again, with no app activity that I'm aware of that would trigger a switch to Wifi. I got it back with little issue, and it's not common, but that's a drag. The Sample Rate Switch Latency continues to have zero effect on the popping that occurs when turning on off the TV with the SPDIF input selected. It's possible I'm not using it correctly, but I've set it to all different ms' with no luck. I'm also getting soft popping between "Master" and "HiFi" songs on Tidal. There is some chatter on the forums to alleviate this, but I'm not interested in forcing a resample through volume or EQ. Some of the latest updates seem to have addressed something similar for Amazon users, so perhaps a fix is coming soon. I plan to write WiiM about it. Other than that... as usual, when this thing works... [these-hills-sing meme].Update 3/5:I would lower this rating to a 3.5 if I could, but I will round-up to 4 stars because I have faith that the updates will eventually iron all this out... "All this" being, this device is inconsistent. I do not have the connectivity issues described in other posts, but it does behave oddly during operation. The indicator light will change from green to white (or vise versa) with not changes to the input (it *has* changed inputs too, but thats only happened only once... I have it set to auto-sense, but there was/is no activity that I'm aware of that would trigger the switch... I'll turn this setting off and see if that helps). The BIGGEST issue: Last night I temporarily lost my latency setting (the sound was no longer syncing with the video). I attempted to recalibrate through the app, but it produced no clapping sound [red flag]. The app set the latency to 0ms (was previously ~30) and then... I lost sound. I switched input to Wifi, which thankfully worked fine and I got the sound back once I returned to SPDIF-in, but I was worried I was back to square-one (see Update 1/5), at which point I would have dropped the product altogether. Lastly, it now pops my speakers when I turn off the TV-source. This is not the biggest deal (I just mute the preamp before turning off the TV), but it didn't do that before, and it didn't happen when I had the TV going straight into the DAC. [EDIT 7/13/23: I’ve since realized there is a Sample Rate Switch Latency under Audio Output to alleviate this - Sometimes it works, sometimes it doesn’t]. All that said, I still cannot get the clapping sample when attempting to sync the sound, the setting remains at 0ms, but the output seems fine 🤷‍♂️ ... To give you a sense of the timeframe, I'm posing this on Tuesday, July 6 (the original device was delivered June 8). I will write a fourth update if this gets any worse. This product has a LOT of potential, my fingers are crossed, but buyer be warned... Thar be bugs 🗺️ 🐞Update 2/5:After a process-of-elimination with WiiM support, they sent me a new device which arrived promptly. Thankfully, it works as intended (thrilled!). In retrospect / having gained familiarity with the app, there were some warning signs the original device was faulty during configuration (no sound was heard for the mic test, and the resolution test was inconsistent). I simply had no frame of reference to know what I was listening for. That said, I heard the clapping and piano on the new device and it works as advertised. In case anyone looking at the Pro has the same gear, as seen in the photo, I’m running the TV into the Pro > Schiit Modi 3 > Schiit Saga S and can confirm this works fine at full resolution and bit depth. I’ve also incorporated the Schiit Lokius for all sources since my original review, so I’m no longer using digital eq in WiiM Home (as useful as it was). Though the new device works as advertised and my interaction with WiiM was positive, I’m leaving the rating as 4/5 to reflect the journey… feels fair to me.Update1/5:I’ve run into some issues and I feel it’s only fair to lower the rating from 5 to 4 stars. As a streamer, this works great, but I opted for the Pro over the Mini specifically for the optical input to connect my TV. I had it working, but a few days ago it stopped and I have been unable to get it back up and running. To be clear, everything “downstream” from WiFi works wonderfully, but I suspect there is a physical issue w the SPDIF-in. I’m in the middle of ironing this out with WiiM. I’ll update a second time with an end to this story - I hope I won’t have to, but the rating could drop further.Original review:I’m new to this game, but I am thoroughly pleased with the Pro. In addition to learning not to rely on the TV’s DAC, I realized using the TV as a streamer was a narrowed experience as well (poor interface, gaps, re-sampling, etc). I now have the Pro “daisy-chained” between my TV and a Schiit Modi 3 via the SPDIF ports (effectively doubling as a preamp). The TV is now strictly for video and the Pro for music, with no additional DAC’s or sacrifice to the experience 🥳The digital EQ is also handy. I’m looking to eventually add an analog component for the whole system (which includes a turntable), but for the time being it’s been great for addressing standing waves and brightening the speakers.As expressed in other reviews, this has been an eye opening experience with respects to what I feel I need[ed] to buy on vinyl.