Pro-Ject MaiA S3 Integrated Amplifier

2-Year Local Warranty.


Any mention of "us," "we," "our," etc is by Pro-Ject, not AV One.


Compact & Versatile Audiophile Integrated Amplifier

Made In Europe



The MaiA S3 is the all-in-one solution for your hifi system. Not only the circuit design was reworked, also the case has been significantly changed and the MaiA S3 uses our new S3 case. Due to the bigger size, we were able to improve the circuit board layout in terms of electromagnetical interference. With its 8 inputs, you are ready for any kind of source device.


Versatile and Compact

The MaiA S3 offers eight inputs. Ready for digital or analogue sources, wired or wireless – you’re covered. The phono section can handle MM, MI, or high-output MC cartridges. Hook up your tuner or any other analogue device to one of the three line-level RCA inputs. The DAC section allows a coax and two optical connections. The high-definition aptX™ HD Bluetooth 5.0 wireless input allows streaming your favourite music via your phone.



Phono, Line, Digital, Bluetooth 5.0

Use your favourite headphones or connect your speakers with the 4mm banana plugs and the low noise amplifier will do the rest. The variable RCA output also allows you to include a subwoofer in your setup.


aptX™ HD

Bluetooth 5.0

aptX™ HD with our new Bluetooth 5.0 chip will allow you convenient high-resolution streaming from your smartphone.


Handmade in EU

Since 1991

Made in Europe by technicians, engineers and designers with decades of experience. Expert craftsmanship. Sustainable products with a long lifetime. Audiophile audio performance.


Technical Specifications

Power output: 2x 23W / 40W at 8 / 4ohms (1% THD)

Frequency response (20Hz - 20kHz): <-0,5dB @4ohm

Channel separation: - 69dB at 10kHz

Signal to noise ratio: 97dB (101dB-‚A‘ weighted) @4ohm

THD: < 0,04% at 10W / 4 ohms

Headphone amplifier: 2x 75mW at 32ohm (1%THD)

Headphone output: 6,3mm jack (16 – 600ohms)

Analogue inputs: 3x pair RCA, 1x phono MM (RCA)

Digital inputs: RCA coax, 2 x Toslink, Bluetooth 5.0 (aptX)

D/A-converter: Cirrus Logic CS4344 24bit/192kHz

Variable output: 1x pair RCA

Speaker connectors: 4mm Ø banana plugs, spades connectors or naked wire

Power supply: 20V/3A DC;100 - 240V, 50/60Hz

Standby Power consumption: < 0,5 watts

Dimensions WxHxD: 206x55x153 (176mm with sockets)

Battery remote control: 1 x CR2032 / 3V or CR2025 / 3V

Weight: 1070 g without power supply

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