Monitor Audio has launched its new IMS-4 Music Streamer. Featuring BluOS™ technology and Apple AirPlay 2, the IMS-4 is a versatile music streaming solution designed for custom install projects.

BluOS™ technology allows the IMS-4 to stream to four separate zones and its BluOS Controller app offers complete flexibility: streaming from music services, easy access to music libraries, and voice control through a smart device.


Accessed through the app, or one of the many supported integrated control systems, multiple IMS-4 Music Streamers can be integrated with other BluOS devices to provide up to 64 zones of music. Each zone can perform together in perfect sync or play different streams to different zones.

Lossless music can be played at up to 24-bit/192kHz to every room in a home network and, through BluOS, IMS-4 can deliver millions of Master Quality Authenticated (MQA) recordings. Apple AirPlay 2 provides the IMS-4 with even greater flexibility as Siri allows users to request the track they would like to hear and state the room they would like it to be played in. Like BluOS, Apple AirPlay 2 lets the music be enjoyed separately or in sync throughout the home.

Discreet Rack Mount Design

The IMS-4 music streamer’s discreet design (1U of rack space) ensures it can be easily incorporated into any custom installation project. Analogue and digital inputs allow the addition of a cable box or other non-network sources and makes them available in every zone. The IMS-4 even includes a system interrupt to let doorbells and fire alarms be heard.

Monitor Audio recommends that the IMS-4 is partnered with an installation amplifier such as its IA150-8C. Integrated with Crestron, Control4 and RTI, the IMS-4 is compatible with other BluOS enabled devices.

Custom Install

Michael Hedges, Monitor Audio’s technical director, said, ‘The IMS-4 is an exciting new addition to our extensive range of industry-leading custom installation solutions. I am sure our customers will love its ease of installation, flexibility and powerful performance.’

IMS-4 Music Streamer Specifications

Supported File Formats MP3, AAC, WMA, WMA-L, OGG Vorbis, FLAC, ALAC, WAV, AIFF, MQA, HRA

Supported Cloud Services Custom Channels, Sound Machine, QSIC, Spotify Connect, Tidal, Amazon, Qobuz, Napster, Deezer, LiveXLive, Idagio,, KKBox, Bugs!, DMH

Supported Operating Systems Mobile and Tablet – iOS 9.3 or higher / Android 5.0 Lollipop or higher / Fire OS 5.0 or higher

Desktop – Windows 7 SP1 or higher / macOS 10.9 Mavericks or higher

Free Internet Radio TuneIn Radio, iHeartRadio, Calm Radio, Radio Paradise,

Integration Partners Control4, RTI, Crestron, URC, roon


Rated Distortion <0.005%

Signal-to-Noise Ratio 110 dBA

Sample Rate 32 – 192 kHz

Bit Depth 16 – 24



Analogue RCA Stereo


USB Type A (for USB memory stick and supported peripherals – FAT 32 formatted)

+12V Trigger IN 12 V ±20%

IR Input 3.5 mm Jack

System Interrupt For doorbell/alarms


Analogue RCA Stereo x 4

S/PDIF Optical x 4 (TOSLINK)

Coaxial x 4

+12V Trigger Out 12 V ±20%


Ethernet/LAN Ethernet RJ45, GigE

User Interface FREE BlusOS Controller App for iOS, Android, Fire OS, Windows and macOS

Power Front Panel Button


Standby Power 6 W (Network Standby Mode)

Dimensions Inc. Feet (H x W x D) 45 x 438 x 236 mm / 113/16 x 171/4 x 95/16”

Dimensions with Brackets (H x W x D) 45 x 482 x 236 mm / 113/16 x 19 x 95/16”

Weight 2.8 kg / 6 lb 3 oz

Note: Installers should allow a minimum clearance of 55 mm for wire/cable management

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