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Pro-Ject MaiA S2

Compact stereo integrated amplifier with built-in DAC and Bluetooth® (Silver)

Item # 252MAIAS2S

This compact amp is perfect for powering a pair of bookshelf speakers in a bedroom, dorm room, or home office.

This compact amp is perfect for powering a pair of bookshelf speakers in a bedroom, dorm room, or home office.

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Item # 252MAIAS2S

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Kristina
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Contact our Virginia-based experts.

About the Pro-Ject MaiA S2

An updated classic

The Pro-Ject MaiA S2 is an updated version of a popular integrated amp introduced in 2015. Pro-Ject kept the features that made the original MaiA a hit, improved the internal circuit boards, and protected them with an elegant aluminum casing. 

An updated classic

The Pro-Ject MaiA S2 is an updated version of a popular integrated amp introduced in 2015. Pro-Ject kept the features that made the original MaiA a hit, improved the internal circuit boards, and protected them with an elegant aluminum casing. 

The amp's modest 2 x 25-watt power rating might not sound like much, but the relatively compact MaiA S2 is perfect for powering a pair of bookshelf speakers in a bedroom, dorm room, or home office. And the amp's subwoofer output lets you add more bass when needed.

Connect with all your music

The low-profile MaiA S2 has the features of a full-size integrated amp. It comes with a built-in digital-to-analog converter, Bluetooth streaming, and wide array of analog and digital inputs, but it can easily be tucked away in a bookcase or used in a versatile desktop system. Its compact, all-metal chassis boasts connections for up to nine audio sources, including a high-quality phono input for your turntable.

High-resolution sound, and more

The MaiA's built-in DAC faithfully renders your digital sources, including high-res music files. There's also an asynchronous USB input for using your computer as a high-fidelity music source. One coaxial and two optical digital audio inputs means this amp is also ready for disc players, network streaming devices, and more. 

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Product highlights:

  • 25 watts x 2 into 8 ohms (38 watts x 2 into 4 ohms)
  • built-in 24-bit/192kHz digital-to-analog converter
  • asynchronous USB input for playback of high-resolution digital music files from a connected computer (up to 24-bit/192kHz resolution)
  • Bluetooth wireless connectivity for streaming music from compatible smartphones, tablets, and computers
    • aptX® encoding provide high-quality music streaming from compatible devices
  • 3 stereo RCA audio inputs, including a phono input (for use with moving magnet or moving coil cartridge)
  • minijack analog input for connecting a portable music player
  • 2 Toslink optical digital audio inputs (supports music files up to 24-bit/96kHz)
  • coaxial digital audio input (up to 24-bit/192kHz)
  • binding-post speaker terminals
  • variable minijack preamp output for subwoofer or second zone amp
  • built-in headphone amplifier with full-size (1/4") output
  • frequency response: 20-20,000 Hz (+0dB, -0.5dB)
  • signal-to-noise ratio: 90 dB
  • credit card-style remote control
Dimensions and warranty:

What's in the box:

  • Integrated amplifier
  • AC power supply (w/ attached 5' DC cord)
  • 5' AC power cord
  • Remote control
  • CR2032 3V battery
  • Bluetooth antenna
  • CD-ROM w/ USB Driver
  • Instructions

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More details on the Pro-Ject MaiA S2

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Features & specs

Performance Specs
Watts RMS per Channel (8-ohms) 25
Watts RMS per Channel (6-ohms) Not given
Watts RMS per Channel (4-ohms) 38
Frequency Bandwidth 20-20k
THD 0.07%
Minimum Impedance 4 ohms
Signal to Noise Ratio 90
Digital Music Features
Built-in DAC (Digital to Analog Converter) Yes
High-resolution Audio Playback PCM
Bluetooth Built-in 2.1
Wi-Fi N/A
Connections
Total Analog Inputs 3
Phono Input Yes
Optical Digital Inputs 2
Coaxial Digital Inputs 1
USB Input Type-B
Preamp Outputs 3.5mm
Headphone Output 1/4"
Dimensions and Warranty
Width (inches) 8-3/16
Height (inches) 1-1/2
Depth (inches) 7-15/16
Weight (pounds) 2.03
Parts Warranty 1 Year
Labor Warranty 1 Year

Product Research

Features

Integrated Stereo Amplifier: The Pro-Ject MaiA S2 integrated amplifier is rated at 25 watts x 2 channel (into 8-ohms) or 38 watts x 2 channel (into 4-ohms).

24-Bit/192kHz DAC: The Pro-Ject MaiA S2 utilizes a Cirrus Logic CS4344 24bit/192kHz Multi-bit Delta Sigma DAC (digital-to-analog converter) for exceptional sound quality from the integrated amp's USB-B input, optical & coaxial digital inputs, and built-in Bluetooth.

Built-in Bluetooth w/ aptX: The MaiA S2 offers built-in Bluetooth 2.1+EDR for wireless music streaming of stored music, music apps, and other audio content on your Bluetooth-enabled smartphone, tablet, laptop, or desktop computer. In addition to support for the standard SBC Bluetooth audio codec, the MaiA S2 offers support aptX for higher quality audio streaming from select Android devices. aptX audio coding technology provides even better sound quality with lossless, CD-quality streaming for compatible aptX-compatible smartphones, like many Android smartphones and tablets. The MaiA S2 can pair with up to 8 Bluetooth devices, but only one can be used at a time. You'll still continue to use your Bluetooth device to control music playback and view song/artist/ablum information.

Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Pro-Ject MaiA S2.

XMOS Asynchronous USB-B Input: The Pro-Ject MaiA S2 provides a XMOS Asynchronous USB-B input to connect your Windows PC or Mac computer for playback of compressed and high-res music files stored on your laptop or desktop. The unit's USB-B input bypass the inferior DAC in your computer and utilizes the 24-bit/192kHz DAC of the MaiA S2 for exceptional sound quality. XMOS Asynchronous technology allows the digital clock inside MaiA to control the flow of data coming from your computer. This method of communication leads to less jitter (timing errors) for the unit's built-in DAC to deal with which results in clearer more defined sound.

Note: Windows PC will require a USB Class 2 driver that is installed on the included CD-ROM. Mac computers do not require a separate USB driver.

Optical & Coaxial Digital Inputs: The Pro-Ject MaiA S2 features two optical (toslink) digital inputs and one coaxial (RCA) digital input to connect your Blu-ray/DVD player, cable/satellite box, game system, or TV. These digital inputs will accept 2ch PCM only (not compatible with Dolby Digital or DTS). The optical digital inputs support up to 24-bit/96kHz, while the coaxial digital input supports up to 24-bit/192kHz.

Line-Level Inputs: The MaiA S2 includes is equipped with three analog line level inputs that consist of two stereo RCA inputs and one stereo minijack (3.5mm) input for the connection of an external analog source device; such as a CD player, AM/FM tuner, and MP3 player.

Phono Input (MM/MC): The Pro-Ject integrated amplifier is equipped with a Phono input for connection of a turntable with an MM or MC cartridge.

Binding Post Speaker Terminals: The MaiA S2 integrated amp is outfitted with a set of binding post terminals for connecting a single pair of speakers. The binding post terminals which will accept bare wire (up to 12AWG), pin-connectors, spade-connectors, and banana plugs (single only).

Variable Line-Level Output: There is a variable line-level output (3.5mm) which allows you to connect a powered subwoofer or second zone amplifier.

1/4" Headphone Jack: There is a 1/4" headphone jack on the front-panel for connecting a set of headphones (16-600 ohms). Connecting a set of headphones will mute the integrated amplifier's speaker and linve-level outputs.

Simple Control: The Pro-Ject MaiA S2 includes an IR remote control for wireless operation of the integrated amplifier. Control options include Power On/Off, Input Select, and Volume Up/Down. These same controls are also located on the unit's front-panel.

Aluminum Chassis with Improved Board Layout: The MaiA S2 features a high-quality all aluminum casing and an all new board layout to better shield and protect against electromagnetical interference to further improve sound quality. The MaiA S2 is available with silver or black faceplates.

External AC Power Supply: The Pro-Ject MaiA S2 operates off of standard household current using the supplied external AC power supply and detachable AC power cord.

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