FiiO K9 Desktop Headphone Amplifier with USB, ES9068AS*2 DAC, Bluetooth, THX AAA 788+ LDAC, DSD512 Support

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Product Description: Basic specifications: - Bluetooth chip: QCC5124, Bluetooth 5.1 - Bluetooth format support: LDAC/aptX Adaptive/aptX HD/aptX/aptX LL/AAC/SBC - Outputs: 6.35mm/4.4mm/XLR-4/RCA/XLR - Inputs: USB/OPT/COAX/RCA/4.4mm - SNR: ≥124dB (A-weighted, UAC) - Noise floor: PO＜4.8μV (A-weighted, UAC); BAL＜9.3μV (A-weighted, UAC) - Output impedance: ＜1Ω (32Ω load)

Abundant accessories included: K91, Power cord1, Headphone plug adapter1, USB data cable1, Feet pads6, Fuse1, Stand1, Quick start guide1, Voltage selection card*1, K9

Key Features: 1. High-performance ES9068AS*2 DAC 2. THX AAA 788+ amplifier 3. Dual-mode clock management 4. QCC5124 Bluetooth | LDAC/aptX Adaptive and other high-res Bluetooth format support 5. Truly balanced design 6. Dual-voltage linear transformer 7. Variety of inputs and outputs

High-performance dual cores: The K9 features two ES9068AS DACs, one for each channel, delivering high-quality audio performance. Immerse yourself in your favorite playlist and experience the music like never before.

Six-stage audio circuit: Meticulously designed, the desktop-grade six-stage audio circuit ensures pure, delicate, and rich sound. It includes I/V conversion, LPF filter, digital volume adjustment, buffer amplifier, pre-amplifier, and post-stage drive.

High-end amplifier: With a power output of up to 780mW at 300Ω and up to 2000mW at 32Ω, the THX AAA 788+ amplifier provides exceptional undistorted power.

Multiple LDOs in multiple stages: Ultra-low-noise LDOs are employed in each stage of the audio circuit for voltage regulation, ensuring excellent sound quality and stability.

Robust power supply: The K9 uses a linear transformer paired with 4 massive 4700uF capacitors to provide a clean and continuous power supply.

Isolated digital and analog section power supply: Separating the power supply for the digital and analog sections reduces interference between the two audio circuits, resulting in pure and faithful music reproduction.

Dual-mode clock management: Supporting up to 768kHz/32bit PCM and DSD512, the K9 ensures accurate timing and synchronization.

Customer Reviews: - K9: 4.5 out of 5 stars, 22 reviews - K9PRO: 4.0 out of 5 stars, 93 reviews - ESS K7: 4.5 out of 5 stars, 420 reviews

Price: - K9: $429.99 - K9PRO: $849.99 - ESS K7: $199.99

Digital input: - K9: USB, OPT, COAX, BLUETOOTH - K9PRO: USB, OPT, COAX, BLUETOOTH - ESS K7: USB, OPT, COAX

Analog input: - K9: RCA, 4.4MM BALANCED - K9PRO: RCA, 4.4MM BALANCED - ESS K7: RCA

USB PORT: - K9: USB B, TYPE C - K9PRO: USB B - ESS K7: USB B

Filters: - K9: Seven - K9PRO: Three - ESS K7: N/A

DAC chips: - K9: ES9038PRO2 - K9PRO: ES9068AS2 - ESS K7: AK4493S*2

GAIN: - K9: H/M/L - K9PRO: H/M/L - ESS K7: H/L

Max output power: - K9: SE: ≥2100mW(32ohm) - K9PRO: SE: ≥1500mW(32ohm) - ESS K7: SE: ≥1200mW(32ohm)

SNR: - K9: ≥129dB - K9PRO: ≥124dB - ESS K7: ≥123dB

Professional PEQ for what you love: Use the FiiO Control app to easily switch between 7 music tuning styles preset on the K9. Enhance your music listening experience with a more vivid and pleasant sound.

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