Here is my review of the Play, entry level version:
Burson Play
I have been listening to the Burson play, with the stock op-amp for about 6 weeks now. Price is $299 US for the basic unit. If you choose, you can roll op-amp's, as it has sockets in which you can pull part or all 5 op-amps and use other compatible op-amps. Burson has several custom built discrete op-amps that you can roll into it.
First I would like to point out, this a loner sample from Burson, and I have no financial investment in Burson.
When first plugged in with the proper drivers, the Play sounded a bit dry, but in about 2 weeks, it much fuller. The only input is USB, or you can mount it in a computer case and use the supplied cable to connect the Play directly into a mother boards internal USB connection. I only used the external USB connection. The reason for not mounting it in my computer is that there was A: No space in my current computer to fit it in, and B: The Play runs very hot. The Play runs full class A so it does generate heat by the nature of class A. The play plaid all of my computer based files, from lowly MP3 files all the way up to 24-192 PCM and DSD64 and DSD128!
Once the Play had it's initial run in, I must say I am very pleased with it. It has high frequency detail was nice, a little less volume, maybe 1 or 2 dB in the last 2 octaves, not a bad thing mind you. The high frequency on my Modded Creek OBH-11 is a bit brighter, and is more of a fatigue on brighter recordings, not so with the Play. The Yes album by Yes is a good example of this. The cymbals have a present shimmer with the Play and the wood hitting metal is still there.
Mid range is nice and clear on the Play, a bit of warmth shines through. I did not detect any lack of detail in this critical area. Vocals sound full and robust, guitars keep the initial attack and final decay with dignity. When listening Acoustic Sounds DSD download of In Dreams, by Roy Orbison, all Roy's full multi-octave voice shined. Blue Bayou sounds fantastic, as does the rest of this hi res album.
The bass is very full, warm and detailed. You can separate out the bass drums from the bass guitar.. On Linda Ronstadt's Heart Like a Wheel, you can hear the drummer has 2 bass drums and the attack and decay sound natural with no lose. The bass guitar has very good attack, you can hear the fingers pluck the strings
As far as sound stage, most of the opens headphones I used had a very expansive one. I tried a couple of IEM phones with success, but still in your head (all except for the Monoprice M300 plannars which are open backed).
To sum it up, the Burson is a fine piece of gear to have. It gives you a top notch DAC and a tun-able via rolling the op amps. It is a good balance for the price it goes for. Not the last word in detail, but very good at a $299 price point. Out of 10, I would give it a solid 8!
Plus: Roll-able op-amps
A very useful DAC that can handle a wide variety of music files
The option to use a mic, nice for gamer's
A warm detailed sound
Runs full class A
Very good detail, could maybe use a tad more
Very good separation of instruments and expansive sound stage
Minus: Only that it runs very hot, maybe to hot to fit in a computer.