Fosi Audio ZH3 DAC Headphone Amplifier

Fosi Audio ZH3 DAC Headphone Amp – Flagship Desktop HiFi Powerhouse with AKM Precision Sound

 

Comprehensive Desktop HiFi Solution

With comprehensive input and output options, the ZH3 functions as a DAC, headphone amplifier, and preamp, which can be connected to IEMs, over-ear headphones, active speakers, and amplifiers. Featuring UAC 1.0 and 2.0, it is also compatible with gaming consoles, ensuring seamless connectivity across multiple desktop devices.

• Chipset: XMOS XU316+AKM4493SEQ+ OPA1612 x 4
• Input: Coaxial/Optical/USB/RCA
• Output: 4.4mm/6.35mm/RCA/XLR
• SINAD ≥ 115dB; SNR ≥ 121dB; THD+N ≤ 0.00018%; Noise Floor ≤ 1.9μV

 

Description

• An all-in-one desktop HiFi DAC/headphone amp/preamp: With premium chipsets and self-developed fully balanced circuitry, low noise and low distortion. Perfect for HiFi headphones or active speakers, it's the ultimate desktop audio solution.
• Exceptional Sound Quality: Premium chipset with AKM4493SEQ DAC, XMOS XU316 processor, and four OPA1612 amps supports up to PCM 768kHz/32bit & DSD512. A self-developed dual-power balanced amp circuit with multiple ultra-low-noise LDOs and capacitors keeps noise as low as 1.9μV.
• High Output Power: Equipped with both 6.35mm single-ended (640mW@32Ω x2) and 4.4mm balanced (2570mW@32Ω x2) outputs. The 3-level gain switch supports headphones ranging from 16Ω to 300Ω, making it perfect for almost in-ears and over-ear headphones.
• Versatile & Flexible: With coaxial, optical, USB, and RCA inputs, plus 4.4mm, 6.35mm, RCA, and XLR outputs, it connects to diverse audio sources and devices. Functions as a DAC/amp/preamp for desktop HiFi. UAC mode switching ensures full compatibility with game consoles for both music and gaming.
• Rich Customization: Features bass/treble EQ adjustments and 6 filter types, including Bypass mode and two swappable op-amps, allowing you to customize the sound to match your preference. All functions are integrated into the screen for a clean, premium look that continues the Z-Series design language.

 

Specifications

General

• Chipset: XMOS XU316 + AKM4493SEQ + OPA1612 × 4
• Inputs: Coaxial, Optical, USB, RCA
• Outputs: 4.4mm Balanced, 6.35mm Single-Ended, RCA, XLR
• Headphone Impedance: 16 – 300 Ω
• Power Input: DC 12 V

Supported Sampling Rates

• USB: PCM 32-bit/768 kHz, DSD512
• Optical: PCM 24-bit/192 kHz
• Coaxial: PCM 24-bit/192 kHz

4.4 mm Balanced Headphone Output

• Maximum Output Power: 2570 mW × 2 (32 Ω, THD+N < 1%)
• SNR: ≥ 119 dB
• Dynamic Range: ≥ 119 dB
• THD: ≤ 0.00018%
• Noise Floor: ≤ 4.9 μV

6.35 mm Single-Ended Headphone Output

• Maximum Output Power: 640 mW × 2 (32 Ω, THD+N < 1%)
• SNR: ≥ 121 dB
• Dynamic Range: ≥ 121 dB
• THD: ≤ 0.00024%
• Noise Floor: ≤ 1.9 μV

 

Frequently Asked Questions

Does the Fosi Audio ZH3 support DSD playback?

Yes, it supports up to DSD512 via USB input.

What DAC chip does it use?

It uses the AKM4493SEQ high-performance DAC chip.

Does it support balanced output?

Yes, it includes 4.4mm balanced and XLR outputs.

Can it drive high-impedance headphones?

Yes, it supports headphones up to 300Ω impedance.

Does it support tone control?

Yes, it includes bass, treble, and filter customization.

Is it suitable for desktop HiFi systems?

Yes, it is designed specifically for desktop audiophile setups.

What is the maximum USB audio resolution?

PCM 32-bit / 768kHz and DSD512 support