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Allo Boss2 Review (Stereo Streamer)

amirm

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#1
This is a review and detailed measurements of the Allo Boss2 Ethernet (and wifi) streamer/player. It was sent to me by the company for testing and costs US $149 by itself. My tested configuration included the Nirvana power supply which brings the cost up to US $209.

I must say, I am very pleased to see Allo upgrade from clear cases of the past to rather attractive aluminum enclosure:

Allo Boss2 Ethernet Wifi Streamer Review.jpg


The menus are a bit slow but are worlds better than not having them. A remote control is provided which I did not have to use:

Allo Boss2 Rhaspberry Pi Ethernet Wifi Streamer Review.jpg


As you can see, a stereo DAC is preinstalled so this is not just a digital streamer but a complete playback device. Combined with the remote, all you need are powered speakers or an amp and passive speakers and you are in business.

An image of DietPi was kindly preinstalled on the unit for me so I was able to instantly recognize and use the Boss2 with my Roon player. All test signal were run through Roon. As such, I am limited to static tests and not anything that includes a sweep.

Allo Boss2 Measurements
As usual, we start with our dashboard:

Allo Boss2 Streamer Measurements.png


Wow, this is great performance, rivaling some of the best desktop DACs:

best sterem streamer.png


Dynamic range is also excellent although one channel is a bit more noisy than the other:

Allo Boss2 Streamer DNR Measurements.png


Jitter performance is great as well:

Allo Boss2 Streamer jitter Measurements.png


32-tone test signal resembling "music" shows distortion well below threshold of audibility:

Allo Boss2 Streamer Multitone Measurements.png


Conclusions
The Allo Boss2 performs excellently and on par with separate components. Yet here, you have it all integrated in one box, ready to go at the same or more competitive price. The value add in the form of the display and remote is great. What can I say, you need to run and buy one. :)

It is my pleasure to recommend the Allo Boss2 streamer and player.

Edit: video review just posted:

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As always, questions, comments, recommendations, etc. are welcome.

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amirm

amirm

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Thread Starter #4
Would someone be so kind as to tell me what the modern accepted definition of a "streamer" is these days? I'm a little lost here and thanks.
Basically is the ability to "remote" the playback. That is, put a box in your stereo rack but have the control be on some computer elsewhere. This way your PC doesn't need to be next to the audio equipment.
 

m8o

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#5
What a bargain! ALLO remains the top of the RPi DAC HAT heap.

Was upset they discontinued the Katana. I have Boss v1. And wanted a Katana but didnt buy one soon enough. Glad to see this makes that hurt go away.

Kewl case. But as I like to use a 7" screen with RoPieee displaying what Roon is playing to it, I cant see myself using it.
 
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#10
Thanks Amir.
Is it possible to have a teardown of the device? Also, I associate with 617 about curiosity on power supply effect on overall performance.

Ale.
 
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#12
I know it's silly to to caught up with panthers, but I have to wonder what prevented this from earning a golfing panther. Looks good.
 

GWolfman

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#13
Interesting little thing!

I was just setting up a Pi-based streamer myself two weeks ago. I've still yet to connect it to my external DAC and AVR. Debating using an old DAC I have (RCA out), or if anyone has a recommendation for a good way to get digital coax or optical out from the Pi).
 

StevenEleven

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#15
I know it's silly to to caught up with panthers, but I have to wonder what prevented this from earning a golfing panther. Looks good.
Soccer ball panther is European equivalent of golfing panther!!! :cool:
 
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#19
Nice to see another great Pi HAT DAC review. Seems to be so good for the price. Thinking about to stay with SMSL SK10 MKII or switch to Piano2. ;)
 

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