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

Product details

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.
What‘s in the box?
  • Fosi Audio ZH3 x 1
  • 6.35mm Adapter x 1
  • 12V Trigger Cable x 1
  • IR Remote x 1
  • User Manual x 1
  • USB-A/C to USB-C Cable x 1
  • DC 12V Power Adapter x1

FAQs

Please read our FAQs page to find out more.

When do I need to install a driver for ZH3 on Windows?

If your PC is running Windows 7 or earlier. (Note: Windows 7 is no longer updated and may have compatibility issues. Using ZH3 with Windows 7 is not recommended.); To play DSD tracks. (Note: If you use Foobar with the built-in WASAPI plugin for DSD playback, no driver is needed.); To play PCM 768kHz tracks.

USB not recognized?

Faulty or loose USB connection—try a different USB cable; Computer malfunction—try connecting to another computer; Malfunctioning USB port—try another USB port; ZH3 is not set to USB input mode; Driver conflict—go to "Device Manager," find "Audio Inputs and Outputs," uninstall the ZH3 driver, reinstall it, reboot your computer, then reconnect the ZH3 via USB.

If a submenu item appears grayed out, it means the function is not available in the current input/output mode.

USB Input--R/X or LO output: EQ, Bypass, and Gain adjustment not supported; Optical/Coaxial Input--PO output: UAC switching not supported; Optical/Coaxial Input--R/X or LO output: EQ, Bypass, Gain, and UAC switching not supported; RCA Input--PO output: UAC switching and Filter not supported; RCA Input--R/X or LO output: Only input and output selection available.

Can I replace the op-amps in the ZH3?

The ZH3 supports the replacement of two op-amp chips. It utilises easily replaceable DIP8 dual-channel discrete op-amps, catering to your pursuit of a personalised audio experience. Compatible models include the LME49720, NE5532, MUSES02, SS3602, and others. For detailed video tutorials, please consult customer service.

Customer Reviews

Based on 11 reviews
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S
Steven G.
Blank canvas to create your sound

What Fosi has done with the ZH3 is a game changer and going to change the whole market of Dac/Amp combo.You can get op-amps and change the sound profile to suite your taste of sound on top of that they give u filters to shape the sound you hear to fit your need ..If that is not enough you can switch it to Bypass mode now you got the AKM Dac in pure raw, unfilter,uncolor sound..I know some of you reading this will not agree with me but you really need for this burn in and let your ears adjust to it.. with my hearing i notice a difference after 50hrs.. When i first started the sound to me was closed in and slight congested ,viel sound.. then afer 50hrs all of that went away its very spacious,life like soundstage.I am using Hifiman edition XS and Hifiman sundara headphones it makes them sound amazing.. I just now replace the factory op-amps with SS3602 Dual Discrete Op Amp from sparkos labs..now they do need 30hrs of burn in time when they do OMG!!!! the sound is so close to being a live performace everything sounds rich,full detail muscial Its the perfect match for the AKM DAC and how fosi build the ZH3. I promise you if you get the ZH3 and you find the sound to be ok i urge you and highly recommed you to get the SS3602 Dual Discrete Op Amp.. its a simple and easy switch it took me 1mint to do mine. then give it 30hrs of play time then you will hear some of the very best music you ever heard in long time .. Thank you Fosi for giving us people who are budget audiofile products.. The price of the unit and the performance u get is spot on.. Im not bs you ether with these headphones combine with Fosi ZH3 with Sparkos SS3602 you would swear you was listing to a product that was over $500.. dont be fooled by the 2.5watts its the strongest. cleanest and dyanmic watts you ever heard Now for the Cons of the unit .. When you using the output if you use LO or Lineout the volume is program to be at 99 which is max volume so becareful you dont kill something .. you can use Aux output and have volume control on the ZH3 .. Second con is when you are using the XLR it has a built in kill switch to cut off all the filters, tone controls , and able to switch it out of bypass mode .. you when you are using the XLR you are getting 4volts out and getting the raw ,unfilter ,unprocess, uncolor, AKM DAC . which sounds amazing I have the topping L70 amp when hook to the ZH3 its some the best sound ive heard in long long time.. thats it thats all the cons if this unit .. I HIGHLY RECOMMEND IT OVER ANY PRODUCT THAT IS ON THE MARKET THAT IS UNDER $500.00..

B
Brian Schmidt
It does what I need it to do...

For its price point, it's feature rich, I use it as a DAC/HPA on my computer powering Sennheiser HD 560S HP's...
It has native windows support which is nice.,..

M
Mathijs Brands

Fosi Audio ZH3 DAC Headphone Amp

J
Jose Labastida
Great headphone Amp!

I have the Fosi ZH3 connected to my P4 pre-amp and I'm very impressed with the high sound quality this pair produces on my headphones. The ZH3 delivers enough power to drive the FiiO FT3 headphones @ 350 ohms, the volume it reaches is more than enough for music enjoyment. I upgraded the stock OP amps to the Muses02, since the specs on the Muses are better than most stock OP amps. The tone control is always a feature that I'm up for and I appreciate Fosi for including tone controls on a lot of its products. I don't use the ZH3 as a DAC since I have quite a few portable DAC/Amps and I like changing the DAC source to try different sound flavors. With the ZH3, Fosi Audio has delivered another fantastic and budget friendly product. Cheers!

M
Martin Bonadio

It’s a decent unit that performs as expected in my fosi stack. The DAC sounds about as well as the one on my WiiM and the filters don’t really change the music much. The headphone amp is better than average.