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fosi-audio-s3
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Fosi AudioS3

52 reviews

€259.00

20% VAT includedFree EU shipping18-day trial

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Power Consumption

LittleMediumHigh

Highlights

type:
Streamer + DAC + Preamp
dac chip:
AK4493SEQ
sample rate:
32-bit / 384 kHz
streaming:
Roon, AirPlay 2, Cast, Spotify, Tidal
connectivity:
WiFi 6 / BT 5.3 / RJ45 / HDMI eARC
AK4493SEQ DAC
Premium AK4493SEQ DAC paired with dual OPA1612 op-amps and a Burr-Brown PCM1894 ADC for low-noise conversion up to 32-bit / 384 kHz.
WiFi 6 streaming
Roon Ready, Google Cast, Spotify Connect, Tidal Connect, Airplay 2 and UPnP over Ethernet (RJ45) or WiFi 6.
Balanced XLR output
Differential preamp with isolated analog and digital paths plus pop-noise cancellation feeds a fully balanced XLR output.
2.1 home cinema
HDMI eARC input and an active subwoofer output let the S3 anchor a compact 2.1 TV setup.
Bluetooth 5.3
Built-in Bluetooth 5.3 with AAC and SBC codecs for quick wireless playback from phones and tablets.
App control
Fosi Audio iOS/Android app offers a 5-band equaliser and multi-room features across multiple S3 units.

Professional reviews

Image 126
"’’The hi-fi system I’ve tested is the KEF LS50 Wireless II, which is an all-in-one system that includes speakers and amplification. Overall, I was very impressed with the system’s sound quality, which was rich and detailed across the frequency spectrum. The system also has a wide soundstage, which made it easy to pick out individual instruments in complex arrangements.’’"
Image 127
"’’The system’s design is also worth mentioning, as it’s sleek and modern-looking, with a minimalistic aesthetic that would fit well in any home. The system is relatively compact, making it easy to place in a variety of settings, and the speakers themselves are well-built and sturdy.’’"
Image 128
"’’Overall, I would highly recommend the KEF LS50 Wireless II to anyone in the market for a high-quality all-in-one hi-fi system. While it is a bit pricey, I believe it is worth the investment for anyone who values great sound quality and ease of use.’’"
Image 129
"’’One feature that stood out to me was the ability to adjust the system’s sound profile through a mobile app, which allowed me to fine-tune the system to my listening preferences. The app also made it easy to switch between different inputs, such as Bluetooth or optical, and to control the volume.’’"

Customer Reviews

2 Reviews

5.0

11/05/2026

John Doe

This is example review

11/05/2026

Darko

This is really good!

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Number of channels
2
2
2
Power Consumption
100 watts RMS/channel with 2 channels driven (FTC Power Output Rating)
150 watts RMS/channel with 2 channels driven (FTC Power Output Rating)
120 watts RMS/channel with 2 channels driven (FTC Power Output Rating)
Number of inputs
4
4
4

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