Steinway & Sons



Steinway & Sons P300 surround sound processor from Steinway Lyngdorf is built for the demanding audiophile, who requires the ultimate performance in immersive formats as well as stereo. With the new state-of-the-art HDMI and decoder boards, the P300 pass-through 4K-60Hz video with full decoding of 16 native channels and support of up to 256 speakers – all with RoomPerfect™ room correction and intelligent bass management.

State-of-the-art HDMI processing

The P300 features full HDMI matrix functionality between the 8 HDMI inputs and 5 outputs (one being HDBaseT), and this new masterpiece now supports the HDMI 2.1 feature eARC with Dynamic Lip-Sync as well as the latest decoding and post-processing formats. With full 16 channel decoding the P300 offers full support of the immersive surround formats DOLBY ATMOS®, DTS:X® PRO and Auro-3D®, and it delivers a surround sound experience that outmatches anything in and above its class.

Allowing a video throughput of up to 18 Gbps the P300 supports the full 4K 60Hz video stream including the passing of HDR or Dolby Vision information. eARC will allow for a full Dolby Atmos audio bitstream being ‘returned’ to the processor from the television allowing for full audio quality from the TV’s built-in media players.

P300 technical drawing


Decoding: Dolby® Atmos, Dolby Digital, Dolby Digital EX, Dolby Digital Plus, Dolby TrueHD, DTS:X Pro, DTS ES Discrete 6.1, DTS ES Matrix 6.1, DTS 96/24, DTS-HD High Resolution Audio, DTS-HD Master Audio, Auro-3D®, 16 native channels
Post processing: Dolby Surround, Auro-Matic®, DTS Virtual:X
Inputs: Audio: 8 x HDMI™ (≤192kHz/24bit), 1 x AES/EBU S/P-DIF input (≤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 (≤192kHz/32bit), 1 x microphone input (XLR) for RoomPerfect™ – Video: 8 x HDMI™ (2.0b – HDCP 2.2), accepts 3D 30Hz, 4K 60Hz (18Gbps), accepts HDR10, Dolby Vision and HLG
Outputs: Audio: 5 x Steinway Lyngdorf Digital Links (CAT 5e based), 1 x single ended stereo analog output for secondary audio output (Zone 2), 1 x SPDIF coax digital stereo output for secondary audio output (Zone 2 / Fix: 96kHz/24bit) – Video: 4 x HDMI™ (2.0b – HDCP 2.2), 1 x HDBaseT™
Audio specifications: Frequency response: ±0,5dB from 20 to 20,000 Hz,
Total harmonic distortion: 0.005% max from 20 to 20,000 Hz
EQ: RoomPerfect™, 32 x adjustable voicings holding ≤8 shelving, high/low pass or parametric filters with adjustable gain and Q
Mediaplayer: Internet radio (vTuner), Spotify connect, DLNA Support of FAT32 based media storade (see DLNA formats here), Airplay, Roon Ready
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 (backup, updates + FAT32 media storage), 1 x SD card slot (backup – storage for system software and settings)
Optional modules: 16 channel DCI-compliant digital AES/EBU input for movie servers (≤192kHz/32bit) / DB25)
Placement options: Rack mount or freestanding
Dimensions (H x W x D): 14.0 x 45.0 x 35.9 cm / 5.51 x 17.7 x 14.1 in
Weight: 6.6 kg / 14.6 lb

Fact sheet
Technical drawings
Latest software
Control4 Driver
External control manual


Easy overview of the Steinway Lyngdorf processors

Can you remember how many channels the P100 can decode? Or what the video bandwidth is in the new P300? To give you an easy overview of the differences between our Steinway Lyngdorf processors – P100, P200, P300 and the Head Unit processor – we have made a one-pager with the three processors’ specifications.
Download the one-pager here.

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