In Desktop Mode, the KA17's balanced output power can reach up to 650mW + 650mW, approaching that of a desktop amplifier, with stronger dynamics and better control, and more complete sound reproduction.

They mention that it's a great budget mobile DAC/AMP, with decent sound and features for the price. Some say that it performs very well for its price tag and with very little compromise. Customers like the build quality of the audio or video adapter. They say it has a solid build, is superior, and is well designed.

Simply plug your source into the input socket, headphones into the headphone out, press play on the source, and adjust the volume on the Q1 to suit. The Q1 has a very low output impedance (<0.2 ohm) so it should suit even the most sensitive earphones.

FiiO R7 is the brand's first-ever desktop digital audio player equipped with a high-performance ESS Sabre DAC chipset and high-power THX-788+ desktop-grade amplification chipset.