The FiiO E17K is a portable DAC and amplifier designed to enhance the listening experience on the go. It builds on the foundation of its predecessor, the E17, incorporating an improved DAC chip (PCM 5102) and a more complex amplification section, offering superior audio performance compared to simpler models. With a compact, sleek design that features a dark brushed aluminum finish, the E17K strikes a balance between aesthetics and durability. Notably, it includes a small OLED display that provides essential information such as sample rate and bit depth, and a scroll wheel for volume control that also allows for menu navigation. The device is equipped with multiple input options, including USB, AUX, and coaxial inputs, making it versatile for various audio sources. The E17K's sound quality stands out, offering a fuller bass response, more detailed mids, and a smoother treble when compared to its predecessor, the E17. The range of accessories provided with the E17K is impressive, including a protective pouch, interconnect cables, and screen protectors. Overall, the FiiO E17K is a well-rounded audio device, offering significant improvements in sound quality, user interface, and build compared to its predecessor and other devices in its class.