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Product Snapshot
Description
Stream Every Sonic Detail with the Fosi Audio S3
The Fosi Audio S3 Balanced HiFi Streamer / DAC / Preamp is a powerful all-in-one solution designed for audiophiles who demand precision, flexibility, and seamless streaming. Combining a high-resolution streamer, flagship DAC, and preamp in a compact chassis, the S3 transforms your home audio setup into a truly immersive listening experience.
With support for Spotify Connect, TIDAL Connect, AirPlay 2, Google Cast, and DLNA, you can stream your favorite music directly from your apps—no interruptions, no compromises. Whether you're listening to high-resolution files or online streaming services, the S3 delivers wired-grade sound quality with wireless convenience.
🎧 Reference-Grade Sound with AK4493SEQ DAC
At the heart of the S3 lies the AKM AK4493SEQ DAC, engineered for exceptional clarity and accuracy. With an ultra-low THD+N of ≤0.00018% and an impressive SNR of ≥120dB, it reproduces music with incredible detail, dynamic range, and natural tonality.
Its balanced circuit design with XLR outputs, combined with premium components like ELNA capacitors and ultra-low-noise power supply, ensures a cleaner signal, wider soundstage, and superior channel separation.
📡 Next-Gen Wireless Streaming with Wi-Fi 6
Equipped with dual-band Wi-Fi 6 (2.4GHz & 5GHz) and Bluetooth 5.3, the S3 offers fast, stable, and high-quality wireless streaming across your home. Stream music from NAS drives, online platforms, or your smartphone with ease.
⚠️ Note: Roon Ready certification is currently in progress. You can still use Roon via AirPlay 2 or Google Cast.
🎶 All-in-One Versatility for Music & Home Theater
The S3 isn’t just a streamer—it’s a complete audio hub.
- Use it as a dedicated DAC/preamp for your HiFi system
- Connect to your TV via HDMI eARC
- Build a 2.1 home theater setup with the SUB OUT
- Sync with other gear using the 12V trigger
With the Fosi Audio App, you can easily control playback, adjust EQ, and customize your listening experience.
🏠 Designed for Modern Audiophiles
Compact yet powerful, the S3 fits effortlessly into any setup. With advanced protection circuits, efficient heat dissipation, and premium internal architecture, it ensures long-term reliability and consistent performance.
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Good
best dac ever used the sound is incredibly good amazing the black colour is currently on top
Love it! My swimming sessions have become much more enjoyable and consistent. I also love listening to audiobooks and retro songs on these when not in water! Good product for a healthy lifestyle
KZ Duonic ka sound sach me bhut acha hai aur iski overall quality kamal ki hai. planar driver hone ki wajah se clarity next level milti hai. Bass tight hai aur instrument separation bhi bohot clear hai. Isme music suno bohot acha experience hota hai . Highly recommended if you love high-resolution audio!
It just works amazing with all of my audio products
These my first iems using it from last 2 months very nice very balanced sound
A beautiful pair of iems at this price range. Balanced sound, but engaging listening. Also good for monitoring.
Really good DAC and perfect for apple devices as it does not reduce the volume like few other DACs..and very good delivery experience from TAS..👍🏻
Various reviews on the net created a lot of desire and interest to possess this iem.
Hitherto iv been buying audio gear from some other website who did not have this iem in stock.
Thought of buying from Audiostore.
I spoke to Mr Pritam and finalised the deal. Personal interactions do add up to the textual.content you gather from the net. Delivery was exactly as promised.
My first impression of the iem is Spectacular sound reproduction!!!
Songs thatIheardliterallyfelt like being played in front of me.
Bass sufficiently good enough for every listener except bassheads. Of course bassheads would lose considerable amount of ther sonic capabilities.
Soundstage wide and imaging is excellent. Inspite of good bass every instrument is distinctly clear and precise.
Only request for Audiostore is to include other leading brands like Fatfreq, Fiio, Ibasso etc.
My honest review these are best and luxury looking IEMS and I love them and they fit in my ear perfectly for me and I love them
This IEM sound really good for everyday listening. The Bass has a nice punch,Vocals come through clear and the overall sound feels balanced and enjoyable.They’re comfortable to wear for long periods and block out a decent amount of outside noise.Easy to carry around as it’s comes with a pouch and Great for Music,Videos.Definitely worth it for the price, and specifically thanks for audiostore team.❤️❤️.
The bass in these stays present and hits quickly. An easy term to describe the feel is cinematic bass. And it get loud very fast recommend use Low gain with high volume or High gain with Low volume. Prefer your your choice.
After 10 days of use, I feel I made a great upgrade from the 7Hz Elua Ultra. The main differences are that the Elua has laid-back vocals and sub-bass rumbling, while the STA Hi-End surpasses those limitations with good imaging, zero distortion at high volumes, and cinematic punch in the sub-bass.
Here is the detail review with help of claude to differentiate the same batch of IEM just at "ONE POINT"
link : https://claude.ai/public/artifacts/c3f98fc2-1929-415d-bc4a-4833928662d5
looks good , Sound is balanced, you can listen music,watch movies and also good for gaming.Bass is good not that much punchy but does not muddy details . No distortion at Max volume .
At first use I have loved the sound and the fit of the iem so far the best budget iem I have ever used go for it guys value for money product.
Excellent experience with TheAudioStore.in!
I ordered the KZ Duonic Tri-Magnet IEM, which was already going out of stock everywhere, and despite multiple courier issues from Blue Dart, the store support team stayed responsive and assisted throughout the process.
Packaging was good, product is genuine, and customer support was polite and helpful during the delay. The delivery issue was mainly from the courier side, not the store.
Finally received the IEM safely and absolutely loving the sound quality. Would definitely recommend TheAudioStore.in for audio enthusiasts and IEM lovers 🎧
