Refined title: FiiOK9 Desktop Headphone Amplifier with USB DAC and Bluetooth

Check out the FiiO HiFi Desktop Setup from the Previous page brand:

Series 1: HiFi Sound - Explore the Store
Series 2: HiFi Wireless Future - Discover the Store
Series 3: HiFi Desktop life - Visit the Store

Product Description
Basic Specifications:
- Bluetooth Chip: QCC5124, Bluetooth 5.1
- Supported Bluetooth Formats: 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:
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
5. Truly Balanced Design
6. Dual-Voltage Linear Transformer
7. Variety of Inputs and Outputs

High-Performance Dual Cores:
The K9 utilizes two ES9068AS DACs, one for each channel, delivering exceptional audio quality.

Six-Stage Audio Circuit:
Crafted specifically for desktop use, the six-stage audio circuit guarantees pure, nuanced sound.

High-End Amplifier:
With up to 780mW power output at 300Ω and 2000mW at 32Ω, the K9 ensures powerful audio reproduction.

Multiple LDOs in Multiple Stages:
Ultra-low-noise LDOs regulate voltage across each stage of the audio circuit, enhancing sound quality.

Robust Power Supply:
Equipped with a linear transformer and four 4700uF capacitors, the K9 delivers clean, continuous power.

Dual-Mode Clock Management:
Supports PCM up to 768kHz/32bit and DSD512 for high-resolution audio.

Customer Reviews:
- K9: 4.5 out of 5 stars (18 reviews) - $499.99
- K9PRO: 3.9 out of 5 stars (90 reviews) - $849.99
- K7: 4.5 out of 5 stars (358 reviews) - $199.99

Digital Input: USB;OPT;COAX;BLUETOOTH
Analog Input: RCA;4.4MM BALANCED
USB Port: USB B; TYPE C
Filters: Seven

DAC Chips:
- K9: ES9038PRO2
- K9PRO: ES9068AS2
- K7: AK4493S*2

Gain: H/M/L

Max Output Power:
- K9: SE: ≥2100mW(32ohm)
- K9PRO: SE: ≥1500mW(32ohm)
- K7: SE: ≥1200mW(32ohm)

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

Highlighted Features:
- High Performance ES9068AS*2 DAC: The core of K9, delivering high-quality audio for an immersive experience.
- THX AAA 788+ Amplifier: Providing exceptional power output with minimal distortion.
- Isolated Digital and Analog Section Power Supply: Ensures pure and faithful music reproduction by minimizing interference.
- QCC5124 Bluetooth: Supports high-resolution Bluetooth formats for wireless convenience.
- Professional PEQ for Personalized Sound: Customize your music experience with 7 preset tuning styles through the FiiO Control app.

product information: