The K21 includes just the Player engine from the K50, to play to the USB input on a customer’s DAC. The K21 can also run Server apps, but is only medium-powered so is not suitable for very large libraries (>8TB) or heavy DSP functions. The K21 can have one SSD added by the customer (up to 8TB). The customer can upgrade later by adding a K41, improving Server app responsiveness and significantly enhancing sound quality.
USB Audio 2.0 Output
PCM to 32 bit/768kHz / DoP to DSD256 / Native DSD to DSD512
Slide-in user installable storage
1 Bay SSD / Up to 8TB
Dimensions (W x D x H)
445 x 370 x 78 mm