FiiO K9 uses two ES9068AS DAC chips to process the left and right channels respectively, and is also equipped with THX AAA 788 + amp technology dedicated to desktops. It can achieve 780mW per channel with 1% undistorted power under 300Ω load, and 780mW per channel under 32Ω load. The 1% undistorted power reaches 2000mW, which is enough to easily handle low-impedance or high-impedance headphones on hand. In addition, with the blessing of dual-mode clock management technology, K9 can easily handle high-standard decoding, and supports up to 768K / 32Bit PCM decoding and DSD512, making listening to different genres more immersive.

As part of the K9 series, the K9 follows the six-level audio architecture of the high-end stage amplifier K9 Pro. It is also a fully balanced drive. From DAC decoding and volume adjustment, to amp drive, all are processed by fully differential signals, which can greatly reduce crosstalk and bring Come for an authentic sound experience.

In terms of power supply, K9 includes an independent power supply for digital circuits and analog circuits, linear transformers with four 4700uF large-capacity long-life capacitors, audio circuits using multi-stage voltage stabilization filters, etc., to fully ensure sufficient power supply and stable output sound quality.

K9 also uses the QCC5124 Bluetooth chip, supports LDAC / aptX HD / aptX Adaptive and other high-definition Bluetooth formats; is compatible with UAC1.0 / UAC2.0; has a wealth of input and output interfaces, as well as professional-grade parametric EQ, three-level hardware gain, multiple Smart protection and more.

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