FiiO K9 Pro High-End Desktop DAC/AMP MQA

Entering into the big game of high-end desktop DAC/AMP’s FiiO has released the latest K9 Pro flagship DAC/AMP. FiiO’s “K” series has a superb range of desktop DAC/AMP’s and the K9 Pro is the new leader of the chain now. FiiO initially imagined the K9 Pro to feature a dual AK4499 DAC setup but due to the disastrous fire at AKM factory resulting in the shortage of AKM DAC chips, FiiO had to redesign the architecture of K9 Pro. Still, with the shortage of DAC chips, the quantity of K9 Pro will be very limited. The K9 Pro is expected to be on sale in April this year, price will be shared shortly.

Apart from this AK4499 DAC K9 Pro, FiiO is also working on a dual DAC ES90XX K9 Pro that will have a lower price and will be available around August 2021.

FiiO has equipped the K9 Pro with the flagship AK4499 DAC chip from AKM Technologies. It is a 32-bit 4ch Switched Resistor DAC that adopts newly developed technology, achieving the industry’s leading level of low distortion and low noise characteristics. The DAC chip is paired with a high-end USB signal receiver that enables it to decode hi-res files. The K9 Pro supports PCM decoding up to 32-Bit/768kHz and DSD up to DSD512 natively. It also supports MQA decoding support.

The FiiO K9 Pro is a hub for all your audio needs. It features multiple audio input/output options that include RCA/Coaxial/Bluetooth/Optical/USB/4.4mm input ports. For output the device features line-out functionality via 4-Pin XLR balanced*2, RCA line-out and headphone output via 4.4mm/4-Pin XLR Balanced, and 6.35mm single-ended headphone output ports.

The FiiO K9 Pro features wireless Bluetooth functionality with hi-res codecs support. It supports up to 96kHz bitrate streaming over a wireless Bluetooth connection thanks to the hi-res LDAC codec support. Along with LDAC, the K9 pro also supports AptX Adaptive, AAC, SBC wireless codecs.

Apart from the long list of features mentioned above the device also features a linear power supply for clean power management, FiiO Application support on smartphones (Bluetooth connections), and many more features.


>Flagship AK4499 DAC chip.

>MQA Decoding Support.

>Headphone Out(6.35mm Single-Ended/4.4mm Balanced/4-pin XLR).

>Customised THX AAA Amplification Module.

>Hi-res PCM Decoding up to 32-Bit/768kHz. (USB Input)

>DSD Support up to DSD512 natively. (USB Input)

>Optical/Coaxial Input supports PCM up to 192kHz and DoP64.

>Hi-resolution Bluetooth Support with latest Qualcomm QCC51xx Series Chip.

>LDAC/AptX Adaptive/AAC/SBC and other hi-res Bluetooth Codec Support.

>Digital Inputs: Bluetooth/Coaxial/Optical/USB.

>Analog Input: 4.4mm/RCA.

>Lineout: RCA, Balanced XLR.

>Three-Level Gain Mode: Low, Medium, High.

>Linear Power Supply.

>App Control.

>Adjustable Volume Knob with backlight(for indicating active sample rate).

>Multi-state selection & indication.


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