#Note: Find full B&O review list at the bottom.
Both Beoplay M3 and M5 are multi-room, stand-alone Wi-Fi speakers designed for home (stationary) use.
- If you're looking for a portable speaker, then stop reading this post right here and go check out my Beoplay M5 vs Beolit 20 article.
The main differences between Beoplay M3 vs M5 are related to design, sound quality and sound propagation.
I also contacted the Bang & Olufsen Customer Service about this (find mail history at the bottom) and put together all my findings here in this post.
Quick Summary
- Does M5 justify the extra price when compared to M3?
Depends on the positioning of the speaker.
If it's placed towards the center of the room, then the answer is clearly yes. I'd recommend the M5 my eyes closed.
If, however, it's going to be placed closer to the walls, then it might not worth the added price. I'm sure you'll still appreciate the better low frequency response - but does it worth the increase? Only you can decide that. To me (I'd define myself as an audiophile. Hello.), it does.
M5 is equipped not only with larger drivers & amplifiers, but also with MORE of them. On top of that, it propagates the sound on a 360 degree range.
As a result, although Beoplay M3 is still more than capable for most of us; Beoplay M5 delivers noticeably better sound quality - especially in the bass department (low frequency response).
Make sure to check out Beoplay M3 vs M5 chart on bang-olufsen.com.
M5 also offers wider sound propagation and more useful & slick speaker control options. Unlike M3, it's also compatible with Spotify Connect as well.
...then I'd strongly recommend you to check out their different color Kvadrat covers as well before buying - both for the M5 and for the M3.
Don't forget to check out B&O's very own AR app to see how both M3 and M5 would look like in your own home.
Sound quality & propagation
Have you ever noticed that there often tends to be quite the opposite opinions about a speaker?
I can understand this for more "personal taste" kinda products like clothing, for example.
But for engineering products like speakers? Personal tastes and preferences probably still play a role. But shouldn't it be less?
Why is it that we can't set a universal metric for sound quality?
First time I asked this question to myself has been a pivotal day.
Because it turns out that in the mid 90's, Electrical Engineer PhD Floyd Toole came up with a method called Spinorama. This is exactly what he accomplished with this. Turns out that his book Sound Reproduction is like the bible of audiophiles.
Put it simply, Spinorama is a set of measurements that gives a comprehensive overview of a speaker's performance from various angles.
It allows you to compare the performances of different speakers before even laying your ears hands on them.
Isn't that amazing?
This is why Spinorama was apparently groundbreaking news for audio industry. Hence in the mid-late 2010's, most brands and magazines began publishing Spinorama measurements, despite the challenges of making such measurements.
Fortunately, now we have the Spinorama data for a bunch of quite popular speakers. Pierre Aubert put all this untidy data together and put it into https://www.spinorama.org/. This is a stunning source. Pretty valuable stuff from him right there.
All good up to this point.
Now there comes a caveat.
Since the sound speakers propagate are in the form of omnidirectional waves, all measurements are obtained in anechoic or semi-anechoic chambers (a super-quiet room where soundwaves don't bounce back, here's how different that room sounds [a mind blowing time-adjusted video]).
This is a problem because it means that Spinorama alone, unfortunately, won't give us all we need. Placement and reflections play an equally important role there too.
This is why most A-class brands (like SVS, Bang & Olufsen, etc) often come up with room correction features, adjusted either manually or automatically. The EQ adapts itself to the placement (room, corner, center, etc) for a better (deeper and more accurate) sound. Which is great.
Additionally they often emphasize the importance of placement, here is an example: https://www.svsound.com/blogs/subwoofer-setup-and-tuning/75365187-the-art-of-subwoofer-placement
Anyways...
The source code under Pierre Aubert's work is licensed under GPL (General public license). He didn't perform any of the measurements himself, and instead he compiled all of them into one place, so that makes sense.
At this point, I thought that if there was a tool that combined both the Spinorama with the room acoustics data, it'd be extremely useful.
Unfortunately, it turns out that there wasn't any.
This is where I stepped in and partnered with an Acoustics and Audio Engineering PhD in order to achieve this.
We combined Spinorama data with room acoustics and came up with Soundton. A very simple, 2D online tool that allows you to:
- Reveal optimal speaker positions in a room,
- Test with real speakers from real brands,
- Compare different speakers and different positions in the room.
It can be very valuable for the vast majority.
The colormap provides you the locations with the best (green) and worst (red) listening experience.
It works the best with subwoofers since Soundton processes low frequency response waves only.
- Soundton is going to be, say, 80% accurate. Not 100%.
- Because, other parameters such as the age/materials of the building, furniture/windows in place also have an impact on room acoustics.
- If you want absolutely the most detailed room analysis, then what you need is an acoustics consultant. Mind you that's going to require deep pockets and patience though... assuming you find the right person and they get the job done.
Anyways...
Both M3 and M5 are equipped with a unique software, which gets the speakers radiate the sound according to their positioning inside the room:
- Placed at the corner,
- Against a wall,
- Or right in the middle of the room (freestanding).
The speakers can't identify their positioning by themselves, though. You must be the one to introduce it to them manually.
However, designed to propagate the sound evenly on a 360 deg range (and hence the tower-like shape), M5 performs much better in this regard - especially in the middle of the room.
B&O seems to claim M5 does a good job in delivering stereo sound even when M5 is used as a single speaker.
They claim that M5 "leverages a proprietary Ambient Technology solution to create a true stereo sound experience from a single speaker".
Now in all honesty... I think that this is just a fancy sales language so I don't have any idea what that means.
Having said that, compared to multi-speaker systems, M5 indeed does seem to deliver almost equal stereo pairing and sound quality.
In the end, I think you might even find out that one piece of M5 sounds better than two pieces of M3's!
Speaking of which, unlike M5's 360 deg propagation, M3 only acts on a <180 deg range.
Depending on the distance and its location inside the room, there are times I find it as narrow as 120-150 deg.
Make sure to check out M3 vs M5 chart on bang-olufsen.com.
Control & Ease of Use
The M5 speaker top is an aluminium disc that incorporates volume and connection controls that respond with a viscous dampened movement.
- Simply turn it to adjust the volume,
- Tap it once to have it play the last source,
- Double tap it to let Beoplay M5 join other speakers playing in your home,
- Press and hold to turn it on/off,
- Press and turn it to change the song.
You can also do it all with your phone as well.
*Video is time adjusted. Play it to see how the M5 shuffles through songs.
M3, on the other hand, has a simpler system for the same features where it uses buttons (one button for pause and two buttons for volume up/down) for said capabilities.
It isn't any less effective in this regard though - its capabilities remain the same.
Also, both lack a built-in Google assistant or Alexa.
Other shared features
M3 and M5 are multi-room Wi-Fi speakers. So they need power all the time.
It takes them about 1 minute to be completely set up. You can see this in M5 Manual [First-time setup] and M3 Manual [First-time setup] as well.
The reason they're advertised as multi-room speakers is because you can easily have them connect to other speakers in your home through the app in your smartphone.
Here's how the process works:
- Open the music app you prefer {Spotify, Deezer or Tune-in QQ Music (China Specific)}
- Choose the streaming service you prefer {Apple AirPlay, Chromecast, Bluetooth, Beolink, Spotify Connect [M5 only] or QPlay 2.0 (China specific) [M5 only]}
- Select the speakers from the list and tap play
Unlike other speakers like Beoplay A9, Beosound 2, Beosound Edge, etc; M5 and M3 are intended to fill smaller size rooms with their sound.
They can fill the bill for any room smaller than, say, 40 square meters. You can also connect both of them to a non-B&O TV or a sound system.
Make sure to check out M3 vs M5 chart on bang-olufsen.com.
Back and forth mails with B&O Customer Service
I decided to delete this part of the post after noticing this statement at the bottom of their mails:
The information in this email and any attachment is BANG & OLUFSEN CONFIDENTIAL INFORMATION and is solely for the attention of the addressee. If you are not the intended recipient, you are hereby notified that you have received this message in error and that reading it, copying it, or in any way disclosing its content to any other person is strictly unauthorized.