Antipodes KALA K21 Music Server 

The four KALA Series models offer outstanding performance, choice, flexibility and upgradability.
 
The KALA 21:  The KALA 21 is an incredible performer at its price, delivering levels of musical insight not found in most price-no-object music server-streamers. It even gets very close to the performance of the amazing KALA 50 via USB, provided you do not require it to house a very large library, or to perform DSP functions.
 
If your priority is to be immersed in gorgeous sound and feel the emotional pull of your music, then the KALA 21 will delight you.
 
The KALA 21 cannot run the HQPlayer Server App, but it does support HQPlayer NAA. All other apps in our software suite are supported, with the exception of the DSP features within the apps.
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DESIGN
The KALA 21 uses a single custom computer for both Server and Player apps. The Server/Player computer is derived from the Player computer in the KALA 50 but with increased processing resources.
The medium-power Server/Player computer controls what is played and allows you to play over your network to multiple end-points, and to the DAC in your main system by USB.
 
UPGRADING
As with all KALAs, the KALA 21 is designed to be upgradable when we release new KALA models.
But you can also upgrade your KALA 21 to KALA 50 performance over USB by adding a KALA 41. Separating the Server and Player apps and providing more power for the Server app adds more musical insight and refinement, while supporting huge libraries with ease and handling DSP functions.