FiiO is best known for its affordable DACs and DAPs, which very much put their focus on mobile music. However, the K9 Pro ESS is in a different league altogether, providing an impressive desktop DAC/amp with multiple in and output options plus support for hi-res audio formats up to 32-bit/384kHz, DSD256 and MQA.
The back panel has a comprehensive set of connections, including both USB-C and USB-B for computers and mobile devices (a USB-B cable is included), along with coaxial, optical, 4.4mm balanced and RCA inputs. The K9 Pro ESS can even act as a Bluetooth receiver for mobile devices, with support for AAC, aptX Adaptive and LDAC codecs.
Outputs are equally impressive, with RCA and balanced XLR connectors on the back, while the front provides 6.35mm, 4.4mm and balanced…
