Steinway & Sons

Head unit processor


The Head Unit Processor is a testament to both craftsmanship and control. Its distinctive volume wheel is crafted from 1 kg of gold-plated brass and mounted on precision-machined Swiss bearings. The Head Unit Processor is an in-room statement processor and together with the iconic volume wheel, it is the perfect partner for Steinway & Sons Model O, B, C, and D speaker systems.

Media center for surround sound systems

Now featuring HDMI inputs and outputs, the Head Unit Processor can function as a media center for high-performance stereo systems and surround sound systems (up to 12 native channels). It also supports immersive video formats, including 4K with the new high dynamic range formats.

Lifestyle picture of Head Unit Processor 2
Lifestyle picture of Head Unit Processor
Lifestyle picture of Head Unit Processor 3
Technical drawing of Head Unit processor


Decoding: 12 native channels, Dolby Atmos®, Dolby Digital, EX & Plus, Dolby TrueHD, DTS:X, AURO-3D®, DTS ES Discrete 6.1, DTS ES Matrix 6.1, DTS 96/24, DTS-HD High Res. Audio, DTS-HD Master Audio
Post processing: Dolby surround, AURO-MATIC®, DTS Neural:X, DTS NEO:X
Audio inputs: 3 x HDMI™ (≤192kHz/24bit), 3 x S/P-DIF coaxial inputs (≤192kHz/24bit), 4 x S/P- DIF optical inputs (≤96Hz/24bit), 1 x USB audio input (≤192/24bit), 1 x microphone input (XLR) for RoomPerfect™ calibration
Audio outputs: 1 x S/P-DIF coaxial digital output (fixed 96kHz/24bit), 1 x RCA analog output
Audio specifications: Frequency response: ±0,5dB from 20 to 20,000 Hz, total harmonic distortion: 0.005% max from 20 to 20,000 Hz
Interface options: RS232, Ip, Web interface, Ihiji, Remote Control App on iOS and Android platforms
EQ: RoomPerfect™, 32 x adjustable voicings holding ≤8 shelving, high/low pass or parametric filters with adjustable gain and Q
Mediaplayer: Internet radio (vTuner), Airplay, Spotify connect, Local file playback, DLNA Support (see formats here), Roon Ready
Video inputs: 3 x HDMI™ (2.0 – HDCP 2.2), accepts 3D, 4K U-HD & HDR10
Video outputs: 1 x HDMI™ (2.0 – HDCP 2.2)
Video scaling: Upscaling of all video to 4K ultra high definition, no downscaling of 4K video
Control interfaces: 1 x DB9 RS232 connector, 2 x IR sensor inputs, 1 x IR output (loop from one of the sensor inputs), 1 x trigger input, 4 x trigger outputs, 1 x RJ45 ethernet LAN connector, 2 x USB connectors, 1 x SD card slot, (Backup – storage for system software and settings)
Accessories included: RoomPerfect™ microphone, Microphone stand, Microphone cable
Optional upgrade: Iconic RF remote
Placement options: Freestanding
Cooling: Passive / no noise
Dimensions (W x H x D): 440 x 1042 x 396 mm / 17.3 x 40.9 x 15.6 inches
Weight: 57 kg / 125.7 lb
Finish: Black piano finish, custom finishes available

Fact sheet
Technical drawings
Latest software
Installation manual
Control4 Driver
External control manual



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