RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Open Box / B-Stock Notes
exterior grade: 8.0 out of 10 - very good, some surface wear
item cosmetic note: item shows light surface wear due to handling
item function: ✔️ tested
item exterior packaging: original, packaging may show damage
note: all open box / b-stock items are final sale
📌LAB POINTS
high-end audiophile amplifier w/ bluetooth connectivity
8 input options - 1x phono RCA pair, 3x stereo line RCA pairs, 1x Bluetooth (aptX), 2x digital optical, 1x digital coaxial
wireless Bluetooth streaming (aptX capable) input with dedicated antenna
high quality phono pre-amp with MM (moving magnet) + high output MC (moving coil) capability
DAC conversion up to 24bit/192kHz
1/4" headphone output on front panel
variable output for subwoofer or second zone amp
improved S3 casing + board layout for improved electromagnetic interference
"The MaiA S3 is the all-in-one solution for your hi-fi system. Not only has the circuit design been reworked, but the enclosure has been enlarged as well. The larger footprint allows for an improved circuitry layout in terms of electromagnetic interference. MaiA S3 offers a phono RCA input for MM, MI or high-output MC cartridges as well as three RCA line-level inputs for sources such as CD players. You can also connect digital sources such as your TV and/or a CD transport via the digital coax or optical S/PDIF inputs to recruit MaiA S3’s DAC with a quality up to 24bit/192kHz. If you want to stream your music from your mobile phone, tablet or pc you can simply connect to the high definition AptX HD-capable Bluetooth 5.0 input and achieve quality up to 24bit/48kHz (better than standard CD quality)." - Pro-Ject
🔎TECH SPECS
Power output: 2x 23W/40W at 8/4ohms (1% THD)
Signal-to-noise ratio: 97dB (101dB, ‘A’ weighted) @4ohm
Frequency response: 20Hz - 20kHz (+0dB, -0,5dB)
Analogue inputs: 3x pair line-level RCA, 1x phono MM (RCA)
Digital inputs: RCA digital coax, 2x Toslink, Bluetooth 5.0 (aptX)
Speaker connectors: 4mm Ø banana plugs, spades or bare wire connectors
Headphone output: 6.3mm jack
Variable output: 1x pair RCA
power supply: 20V/3A DC; 100-240V, 50/60Hz
dimensions: 8.1" x 2.2" x 6" / 206 x 55 x 153 mm
weight: 2.36 lbs / 1.07kg
📦COMES WITH
remote control
Generating expert take…
Pro-Ject Audio Systems traces its roots to 1991 in Austria's Weinviertel region, north of Vienna, where founder Heinz Lichtenegger launched the brand amid the CD revolution. Kicked out of music school as a youth, Lichtenegger channeled his passion for analog sound into affordable, high-quality turntables at a time when vinyl seemed obsolete. His debut Pro-Ject 1, hand-assembled in the Czech Republic, earned rave reviews as a top high-end device, igniting a success story that relocated headquarters to Vienna before returning to Mistelbach in Lower Austria.
The brand excels in turntables, establishing itself as the world's largest and leading producer in that category, while expanding into a full spectrum of hi-fi components since 2000. Offerings include amplifiers, DACs, headphone amps, speakers, cables, and phono stages, all emphasizing essential sound reproduction with durable materials and minimalist design. Manufacturing remains European—primarily in Czechia, Slovakia, and Germany—prioritizing sustainability through local sourcing, short transport, and products built for longevity.
Pro-Ject holds a commanding niche as the go-to for mid-tier audiophiles seeking boutique European craftsmanship without extravagant pricing. Distributed in over 80 countries, it appeals to vinyl revivalists and discerning buyers who value analog purity, innovation, and value-driven performance over flashy excess, cementing its reputation as a pioneer in accessible high-fidelity.
See all Pro-Ject listings on RADAR.
