The K9 Pro has been designed as a flagship from the very beginning. Designed around an uncompromising DAC and amplifier, its unrivaled performance will earn a place in your audio collection. Beautiful body of the device made of anodized aluminum and minimalist design with an intuitive layout of controls. Backlit volume control RGB indication, knob made of stainless steel. Ability to control and set advanced details wirelessly through the FiiO Control application. The K9 Pro is equipped with the legendary AKM DAC chip AK4499EQ, which is renowned for its great performance and unprecedented decoding capabilities. It supports up to 384kHz and native DSD256. Due to the current shortcomings in the chip market, this is almost a gem of the device itself. The THX AAA 788+ module used in the K9 Pro delivers amazing performance detail and sound dynamics, whether you use low or high impedance headphones. The K9 Pro can produce up to 46Vpp transitions at high impedance loads, and up to 2W (balanced out) at low impedance loads. Dual clock signal generator with an accuracy of one femtosecond. The latest generation of XMOS chips. When the DAC operates under USB and Bluetooth mode, it uses an asynchronous clock signal with an accuracy of 1 femtosecond. When operating under optical or coaxial mode, the PLL uses a clock signal. This method guarantees more accurate decoding of the digital signal and guarantees maximum quality regardless of the input. K9 Pro supports MQA, for the possibility of playing digital sound, which is not only reasonable size, but also in lossless quality, based directly on the recording studio. The K9 Pro uses the Qualcomm QCC5124 chip for Bluetooth communication and supports codecs such as LDAC, AptX, AptX HD, AptX LL, SBC, AAC, AptX Adaptive. The K9 Pro allows easy switching of output, input and gain from the front of the unit for easy range.