The FiiO K9 Pro ESS is a highly versatile DAC and amplifier with Bluetooth, various connections, and high-quality components. It features the appropriate outputs to connect headphones and speakers, as well as numerous analog and digital inputs to link your music sources. Additionally, music can also be played wirelessly via Bluetooth from your smartphone, tablet, or laptop through the K9 Pro ESS.

The many connection options make the FiiO K9 Pro ESS the ideal interface for all your audio equipment. The laptop connects to the USB input of the FiiO K9 Pro ESS. Music players, smartphones, tablets, etc., can be connected via the RCA input, as well as coaxial or optical connections. For speaker connections, RCA and XLR outputs are available. Headphones can be connected symmetrically via XLR or 4.4 mm, or unsymmetrically via 6.35 mm jack on the front of the K9 Pro ESS. An adapter from 6.35 mm to 3.5 mm is included in the package. On the front of the FiiO K9 Pro ESS, there is a knob for three gain settings. A button allows you to switch between input sources (USB, optical, coaxial, line, Bluetooth). The large volume knob on the front of the K9 Pro ESS allows for precise volume adjustment. The solid aluminum housing of the FiiO K9 Pro ESS is finished in a subtle black, making it suitable for both a desk and a HiFi rack.

The two ESS Sabre ES9038Pro digital-to-analog converters ensure very natural and dynamic sound quality. The two built-in THX AAA788+ headphone amplifiers are true powerhouses, capable of driving even demanding headphones with virtually no sound distortion of any kind. Thanks to these high-quality components, every single sound detail is realistically reproduced, allowing you to enjoy finely resolved and detailed sound with the FiiO K9 Pro ESS.