While the predecessor of the K5PRO (the K5) was still the docked portable music player with its D/A converter responsible for the conversion of the music, FiiO opted for a different way with the K5PRO...
|3.5 mm headphone jack|
|6.3 mm headphone jack|
|Headphone amplifier application area|
|Recommended headphones impedance|
16 - 300 Ω (ohm)