订阅每周 HiFi 精选 — 新设备、好文推荐与优惠信息。

Prioritizes pure analog audio with non-digitized playback for turntables and CD players, ensuring lifelike sound fidelity.
Features dual-mono design with fully analog pre/power amplification delivering up to 40W per channel.
Combines analog focus with modern digital options, including a Cirrus Logic DAC, HDMI ARC, Bluetooth 5.1, and dual-band Wi-Fi.
Pro-Ject's Uni Box S3 is redefining what it means to blend analog fidelity and modern streaming in a compact and versatile amplifier. Manufactured in the EU, the Uni Box S3 prioritizes the authenticity of analog audio, leaving many competitors behind when it comes to preserving the lifelike sound of legacy sources such as turntables and CD players. Unlike many streaming amplifiers, its analog line-level and MM phono inputs aren’t digitized during regular playback, ensuring untainted analog signal delivery — unless one decides to stream these signals to external devices.
The amplifier operates on a dual-mono design and features a fully analog pre-amplifier and power amplifier circuit, delivering up to 23 watts per channel into 8 Ohms or 40 watts per channel into 4 Ohms. Its Texas Instruments TPA3221DDV chip handles amplification duties, promising dynamic precision and clarity, especially with nearfield monitors or efficient loudspeakers. A motorized analog volume attenuator further ensures smooth control and sonic fidelity.
Pro-Ject has also infused modern digital capabilities into the Uni Box S3, with four hardwired digital inputs — including Toslink, coaxial, and HDMI ARC — that feed a Cirrus Logic CS4344 DAC capable of processing signals up to 24bit/192kHz. Complementing this digital arsenal is wireless connectivity powered by WiiM OS, bringing Spotify Connect and Tidal Connect seamlessly into the ecosystem alongside a dedicated Pro-Ject Home app for broader streaming service access. Bluetooth 5.1 further expands compatibility for mobile devices, while future-proofing with dual-band Wi-Fi ensures stable connectivity.
There's a notable feature allowing users to stream connected analog devices like turntables or CD players to other zones. However, this functionality introduces digitization to the analog inputs at the streaming stage, raising technical curiosity about whether Pro-Ject might eventually allow users to toggle digital processing for features such as room correction within the primary listening zone.
Other highlights include a front-panel headphone jack delivering 70mW into 32 Ohms and an analog variable output for attaching a subwoofer, leaving crossover management in the hands of the listener. The amplifier is compact, housed in aluminum chassis available in silver or black finishes, and powered through an external supply unit. With a price tag of €799, Pro-Ject's Uni Box S3 balances analog mastery and digital innovation within a refined yet user-centered design.
新设备、精选文章与优惠 — 每周五送达。

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