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Fiio K9 Pro ESS Desktop DAC and Amplifier - Black
The K9 Pro ESS, conceived as a flagship from the very beginning, is designed to be uncompromising as both an amp and a DAC. Its outstanding performance will ensure you want to leave a spot for the K9 Pro in your collection of audio gear.
Features:
- Collector's AK4499 chip
- THX-AAA 788+ Tech
- Dual femtosecond clocks
- Qualcomm QCC5124
- Supports LDAC/aptX adaptive/aptX HD
- App control
- Truly balanced design
- Dual voltage linear transformer
- Wide connector selection
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Technical Specification
- Volume Scroll: Potentiometer+ADC Sampling
- Weight: ≈2750g
- Channel balance: L12~R12 (0.5dB per level)
- Gain: L/M/H
- FiiO Control: Surpported
- Bluetooth format indication: Surpported
- Sampling rate indication: Surpported
- Firmware upgrade: System firmware and Bluetooth version can be upgraded via USB
- Deep standby: Long press the multi-function button for about 3s
- Low battery reminder: /
- Bluetooth transmission: /
- Bluetooth receiver (5.0): AAC/SBC/aptX/aptX LL/aptX HD/LDAC/atpX Adaptive
- Bluetooth format indicator: SBC: blue, AAC: cyan, aptX HD: yellow, aptX: purple, aptX LL: purple, LDAC: white, atpX Adaptive: green
- Charging indicator: /
- Power supply: AC 110-115V~/AC 220-230V~ （Recommended）
- Maximum supported sampling rate:
- 384kHz-32bit/DSD256（USB DAC）
- 192kHz-24bit (coaxial)
- 96KHz-24bit (optical)
- Recommended headphone impedance: 16~600 Ω
- Input Interface:
- Digital inputs: BT/Coaxial/Optical/USB in
- Analog input: 4.4mm/Line in/
- Output Interface:
- Line output
- Balanced out XLR*2
- XLR4 output
- 6.35mm/4.4mm output
- Single-ended line output performance parameters:
- THD+N: ＜0.0007%(1kHz/10kΩ/dbA)
- SNR: ≥123dB (dbA)
- Crosstalk: ≥110dB (1kHz/10kΩ)
- Noise floor: ＜1.9μV（dbA）
- Frequency response: 20Hz~20kHz (-3dB)
- Line Level: 2.5Vrms (1kHz/10kΩ)
- Balanced line output performance parameters:
- THD+N: ＜0.0004%(1kHz/10kΩ/dbA)
- SNR: ≥128dB (dbA)
- Crosstalk: ≥123dB (1kHz/10kΩ)
- Noise floor: ＜1.9μV（dbA）
- Frequency response: 20Hz~20kHz (-3dB)
- Line Level: 5Vrms (1kHz/10kΩ)
- Warranty: 1 year
What Is In The Box
- Fiio K9 Pro ESS Desktop DAC and Amplifier - Black
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Manufacture Description
The strength to always triumph Legendary A44499
The K9 Pro is equipped with the legendary AKM AK4499, renowned in the audio industry for its exceptional performance and unparalleled decoding capabilities, supporting up to 384 kHz and native DSD256 audio. And given its current scarcity, it is definitely a chip many are eager to experience.
Listen to true beauty THX AAA amplifier technology
The THX AAA 788+ chips used in the K9 Pro provide exemplary details and dynamics no matter if you are using low or high-impedance headphones. The K9 Pro can output up to 46Vpp transients when driving high-impedance loads, and up to an undistorted 2W* when pushing low-impedance loads. Compared to the original, the output power of the K9 Pro has increased by more than 50% with higher heat dissipation efficiency.
*As tested in FiiO Labs under balanced out
Electricity is the mother of sound
Linear power supply
The K9 Pro's linear power supply, with its low-frequency transformer and high-capacity Nichicon capacitors, provides abundant clean power for the whole system.
Lossless MQA decoding
The K9 Pro supports the unfolding of MQA tracks, allowing you to listen to high-resolution audio files that are not only reasonably sized, but also retain master-level sound quality that brings you directly into the recording studio.