Description
Fosi Audio ZD3 Fully Balanced DAC & Preamplifier – High-Resolution Audio for Audiophiles
Uncompromising Audio Quality
The Fosi Audio ZD3 is a flagship fully balanced DAC & preamplifier engineered to deliver pure, high-fidelity sound. Featuring the cutting-edge ES9039Q2M DAC chip, it provides rich detail, low distortion (THD+N <0.00008%), and an immersive listening experience.
Versatile Connectivity for Ultimate Flexibility
Equipped with multiple input and output options, the ZD3 adapts to any audio setup:
✔ Inputs: USB, HDMI ARC, Optical, Coaxial, Bluetooth 5.1 (SBC, AAC, aptX, aptX HD)
✔ Outputs: XLR (balanced), RCA (unbalanced)
Premium Components for Superior Sound
Built with audiophile-grade components, including XMOS XU316, QCC3031, and LME49720 op-amps, the ZD3 supports PCM 32bit/768kHz and DSD512 for unmatched clarity. The fully balanced output design minimizes noise and interference, ensuring pure sound reproduction.
Seamless Wireless Streaming
Enjoy hi-res Bluetooth audio with support for aptX HD, delivering low-latency, lossless transmission.
User-Friendly Features
✔ 1.5-inch OLED Display: Provides real-time audio status for effortless control.
✔ Swappable Op-Amp Design: Customize your sound with replaceable DIP8 op-amps.
✔ Bypass Mode: Direct signal transmission for high-purity output.
✔ 12V Trigger In/Out: Enables automatic power syncing across your audio setup.
✔ Compact & Elegant: Matches the Fosi Audio ZA3 amplifier for a seamless audio system.
Important Note for LG TV Users:
A known issue with LG TVs and HDMI-CEC may cause unexpected power cycles. Disabling HDMI-CEC is recommended while we work on a solution.
🔊 Upgrade your audio experience with the Fosi Audio ZD3 – where precision meets power!
Chip Set: XMOS XU316 + ESS 9039Q2M + QCC3031 + LME49720
Maximum Sampling Rate:
USB: PCM 32bit/768kHz; DSD512
OPT/COAX: PCM 24bit/192kHz
Bluetooth: PCM 24bit/48kHz
Output Level:
XLR: 5Vrms RCA: 2.5Vrms
Input Mode:USB, HDMI (ARC), Coaxial, Optical, Bluetooth
Output Mode: XLR, RCA
SINAD: 126dB
THD: ≥120dB
THD+N: <0.00008%
Dynamic Range: ≥123dB
Noise Floor: ≤2μV
Bluetooth Version: 5.0
Bluetooth Connection Distance: ≥13m
Bluetooth Transmission Audio Format: aptX HD, aptX, AAC, SBC
Power Supply: DC 12V 1.5A
USB Compatible Devices: Windows 7, 8, 8.1, 10, 11 (Some require drivers; please refer to the user manual)Mac OS X, Linux (No driver required)
In The Box
DAC ZD3 *1
12V Power Adapter *1
Infrared Remote Control *1
USB-A to USB-B Cable *1
3.5mm Trigger Cable *1
USER MANUAL *1
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
Cable: 1-month warranty only for manufacturing defects only
Fosi Audio is a dynamic brand dedicated to providing the most comprehensive range of Hi-Fi audio products in the market. We cater to passionate audiophiles by offering Hi-Fi products, DIY kits, and expert guidance, ensuring an immersive audio experience. Beyond a mere transaction, we foster enduring relationships with our clients, supporting them throughout their audio journey.
Our diverse product lineup includes the Hi-Fi power amplifier, pre-amplifier, headphone amplifier, DAC, music player, Bluetooth receiver, DIY board, DIY chassis, and an array of DIY kits. These meticulously crafted offerings embody our commitment to exceptional sound quality and innovation.
Established in China in 2017, Fosi Audio was founded by a team of devoted audiophiles. Our products have gained significant popularity within the Chinese DIY audio community, amassing a large and dedicated following. To expand our reach beyond borders, we launched this website in 2017 and began offering a selection of products on Amazon under the name "Fosi audio." However, please note that many of our outstanding products are not yet available on this website or Amazon. If you cannot find what you're looking for, simply reach out to us via email, and we will be delighted to assist you in finding the perfect product to meet your needs.
At Fosi Audio, we are not just a brand; we are your partner in achieving audio excellence. Join us on this immersive sonic journey and experience the true essence of Hi-Fi audio.

Description
Fosi Audio ZD3 Fully Balanced DAC & Preamplifier – High-Resolution Audio for Audiophiles
Uncompromising Audio Quality
The Fosi Audio ZD3 is a flagship fully balanced DAC & preamplifier engineered to deliver pure, high-fidelity sound. Featuring the cutting-edge ES9039Q2M DAC chip, it provides rich detail, low distortion (THD+N <0.00008%), and an immersive listening experience.
Versatile Connectivity for Ultimate Flexibility
Equipped with multiple input and output options, the ZD3 adapts to any audio setup:
✔ Inputs: USB, HDMI ARC, Optical, Coaxial, Bluetooth 5.1 (SBC, AAC, aptX, aptX HD)
✔ Outputs: XLR (balanced), RCA (unbalanced)
Premium Components for Superior Sound
Built with audiophile-grade components, including XMOS XU316, QCC3031, and LME49720 op-amps, the ZD3 supports PCM 32bit/768kHz and DSD512 for unmatched clarity. The fully balanced output design minimizes noise and interference, ensuring pure sound reproduction.
Seamless Wireless Streaming
Enjoy hi-res Bluetooth audio with support for aptX HD, delivering low-latency, lossless transmission.
User-Friendly Features
✔ 1.5-inch OLED Display: Provides real-time audio status for effortless control.
✔ Swappable Op-Amp Design: Customize your sound with replaceable DIP8 op-amps.
✔ Bypass Mode: Direct signal transmission for high-purity output.
✔ 12V Trigger In/Out: Enables automatic power syncing across your audio setup.
✔ Compact & Elegant: Matches the Fosi Audio ZA3 amplifier for a seamless audio system.
Important Note for LG TV Users:
A known issue with LG TVs and HDMI-CEC may cause unexpected power cycles. Disabling HDMI-CEC is recommended while we work on a solution.
🔊 Upgrade your audio experience with the Fosi Audio ZD3 – where precision meets power!
Chip Set: XMOS XU316 + ESS 9039Q2M + QCC3031 + LME49720
Maximum Sampling Rate:
USB: PCM 32bit/768kHz; DSD512
OPT/COAX: PCM 24bit/192kHz
Bluetooth: PCM 24bit/48kHz
Output Level:
XLR: 5Vrms RCA: 2.5Vrms
Input Mode:USB, HDMI (ARC), Coaxial, Optical, Bluetooth
Output Mode: XLR, RCA
SINAD: 126dB
THD: ≥120dB
THD+N: <0.00008%
Dynamic Range: ≥123dB
Noise Floor: ≤2μV
Bluetooth Version: 5.0
Bluetooth Connection Distance: ≥13m
Bluetooth Transmission Audio Format: aptX HD, aptX, AAC, SBC
Power Supply: DC 12V 1.5A
USB Compatible Devices: Windows 7, 8, 8.1, 10, 11 (Some require drivers; please refer to the user manual)Mac OS X, Linux (No driver required)
In The Box
DAC ZD3 *1
12V Power Adapter *1
Infrared Remote Control *1
USB-A to USB-B Cable *1
3.5mm Trigger Cable *1
USER MANUAL *1
Warranty Period: 1 Year from the date of Invoice
Covered: Manufacturing Defects Only
Warranty Form: https://www.theaudiostore.in/pages/warranty-claim-form
Cable: 1-month warranty only for manufacturing defects only
Fosi Audio is a dynamic brand dedicated to providing the most comprehensive range of Hi-Fi audio products in the market. We cater to passionate audiophiles by offering Hi-Fi products, DIY kits, and expert guidance, ensuring an immersive audio experience. Beyond a mere transaction, we foster enduring relationships with our clients, supporting them throughout their audio journey.
Our diverse product lineup includes the Hi-Fi power amplifier, pre-amplifier, headphone amplifier, DAC, music player, Bluetooth receiver, DIY board, DIY chassis, and an array of DIY kits. These meticulously crafted offerings embody our commitment to exceptional sound quality and innovation.
Established in China in 2017, Fosi Audio was founded by a team of devoted audiophiles. Our products have gained significant popularity within the Chinese DIY audio community, amassing a large and dedicated following. To expand our reach beyond borders, we launched this website in 2017 and began offering a selection of products on Amazon under the name "Fosi audio." However, please note that many of our outstanding products are not yet available on this website or Amazon. If you cannot find what you're looking for, simply reach out to us via email, and we will be delighted to assist you in finding the perfect product to meet your needs.
At Fosi Audio, we are not just a brand; we are your partner in achieving audio excellence. Join us on this immersive sonic journey and experience the true essence of Hi-Fi audio.
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OUR HONEST REVIEWS FROM THE CO-FOUNDERS & AUDIOPHILES
View allTRUSTED BY OVER 40K+ MUSIC ENTHUSIAST
Let customers speak for us
from 5543 reviews
The Hisenior Mega5EST is a reference-quality IEM tuned with taste and subtlety. It doesn't shout for attention but rather invites you to listen deeper. If you're looking for an IEM that balances technical excellence with musical emotion, this one is a rare gem in the hybrid space. A true “listen for hours, forget the gear” experience.

This is the best MP3 player you can get for this price.

I'm new to the world of IEMs and this one was bought to try how it feels. Trust me, it won't disappoint you. Double the value compared to headphones of the same rate.

Budget king SMSL RAW MDA1. Very versatile music dac & headphone amp. Fully satisfied. Being an audiophile I was searching for best budget one got this from The audio store. Thanks for timely delivery. Nothing can match it at this price range period.

Works well with my Moto Edge 50 Pro. Other DAC's would have a lot of interference and static, the Moondrop Echo A has none. Audio is clear and the connector does not heat up at all. Battery life isn't impacted as well.
The build quality is excellent, cable is flexible and will fit in any iem carry case as well.

This is a great product with excellent sound quality. The bass is impressive and it's worth the money.

Beautiful and heavy duty balanced cable. Adds a weight to the music's bass i.e. tighter bass response.
Good product excellent sound well packed but delivery was delayed by two days.otherwise everything good.

Combo of cx31993 max97220 chip is more than sufficient to drive any iems

Using it with truthear crinicle zero red and works perfectly. Loving it

I’ve been thoroughly impressed with the SMSL RAW MDA-1, especially as someone who values Hi-Res audio and the transformative power of a great DAC+amplifier.
The build is solid, with a sleek, compact design that fits perfectly on my desk without taking up too much space. I love the variety of connectivity options—USB-C, coaxial, optical, and Bluetooth—making it easy to connect to my PC, gaming console, or even my phone. The Bluetooth feature is particularly handy for wireless listening when I want to move around without sacrificing sound quality.
One thing I’ve found is that it’s exceptionally well-suited for low to medium impedance headphones, delivering plenty of power and clarity. However, if you’re using high-impedance headphones, you might notice it struggles a bit with volume, so you may need an external amplifier for those. Also, while the 4.4mm headphone output is convenient, it’s not a true balanced design, which might be a letdown for audiophiles who prioritize that feature.
Given its price point, the SMSL RAW MDA-1 offers exceptional value, delivering high-end features and performance that punch above its weight class. It is particularly suitable for audiophiles and gamers seeking a high-quality desktop audio solution with both wired and wireless options. However, for those with high-impedance headphones or a preference for advanced sound-shaping features, it may fall short, potentially requiring supplementary equipment.

KZ Castor Harman Target with Improved Bass is just bliss for listening to music & watching movies.
I play lots of pc games, this IEMs are just awesome for gaming.. The sound stage is fantastic 🔥🔥. Loved using it for movies & games ❤️🔥🤩

It's simply wow
I discovered new things in my favorite audio.
That's how good it is.
5/5

This is my first dedicated DAP/DAC
I'm very much impressed with the dedication from audiostore. I was also pleasantly surprised by receiving the strap used with hiby also.
5/5 recommended to all beginner and senior audiophiles

👍