Building a Steinway Lyngdorf Home Cinema Room

A Complete Guide to the Design, Specification and Construction of a Reference Home Cinema

Steinway Lyngdorf systems appear in the world’s finest concert halls, recording studios and private listening rooms. They are not, by design, the most visible presence in the home cinema market — the company does not advertise aggressively and does not compete on price. What Steinway Lyngdorf offers instead is a complete audio system, engineered from first principles to reproduce sound exactly as it was recorded, with no colouration, no compromise and no component that is anything less than the finest of its type. As authorised Steinway Lyngdorf dealers and installers, we have designed and built a number of installations at this level. This article documents one of them in full — the complete specification, the construction approach, the control system integration and the calibration process — for anyone considering building a home cinema at the top of what the medium offers.

Why Steinway Lyngdorf for a Home Cinema?

The question deserves a direct answer. There are other high-end speaker manufacturers. There are other room correction systems. There are other processors capable of decoding Dolby Atmos. What makes a Steinway Lyngdorf home cinema categorically different is not any single component but the integration between all of them — and the RoomPerfect calibration system that ties the whole together.

Steinway Lyngdorf designs its loudspeakers, amplifiers, processors and room correction software as a single integrated system. The amplifiers communicate with the processor via a proprietary digital connection. The speakers are voiced and measured in conjunction with the amplification. RoomPerfect calibration is not applied as an afterthought — it is designed into the architecture of every component from the outset. The result is a system where every element performs in relation to every other element, and where the room itself — its dimensions, its surfaces, its acoustic behaviour — is measured, modelled and corrected to a degree that no conventional room correction system approaches.

For a home cinema, this matters enormously. A film soundtrack is a precisely crafted spatial experience. The director and the dubbing mixer intend specific sounds to come from specific directions at specific levels and specific moments. A system that adds colouration, that smears transients, that introduces frequency peaks and troughs caused by room acoustics, is not reproducing that intention — it is approximating it. Steinway Lyngdorf, with RoomPerfect calibration properly applied in a well-constructed room, reproduces it.

The Room — Construction and Acoustic Isolation

A reference audio system performs only as well as the room allows. Construction came first, and it was designed around two objectives: acoustic isolation from the rest of the building, and acoustic control within the room itself.

The walls were built using stud construction lined with two layers of acoustic treatment. Acoustiblok 6mm sound insulation membrane was applied to the stud walls — a 6mm layer that stops as much sound transmission as a foot of concrete, decoupling the cinema from adjacent rooms entirely. Behind the Acoustiblok, QuietFiber mineral wool insulation was packed into every stud bay, absorbing sound energy within the wall structure before it has the opportunity to transmit. The result is a room that contains its own acoustic environment completely — no sound leakage in either direction, no mechanical transmission through the structure.

The internal surfaces were then finished in acoustic fabric, which serves a dual purpose: it conceals the speaker installations entirely and provides controlled absorption at the room boundaries, preventing the standing waves and early reflections that would otherwise compromise the performance of even the finest speaker system. The room is dark, calm and acoustically inert — the ideal environment for a Steinway Lyngdorf system to perform in.

The Display — Samsung The Wall, 3m × 2m

The display is a Samsung The Wall direct-view LED display, configured as a 4 × 4 module matrix measuring 3 metres wide by 2 metres tall. The Wall represents a fundamentally different approach to cinema display from projector-based systems. Rather than projecting light onto a surface, it generates light directly at the pixel level — producing absolute blacks, extraordinary peak brightness, perfect uniformity and a contrast ratio that no projector can approach.

The implications for a home cinema are significant. A projector-based system requires controlled ambient light — any light in the room reduces the perceived contrast of the image. The Wall can be used in any lighting condition. It produces a picture of consistent quality whether the room is in darkness or fully lit, which changes how the cinema can be used. It also eliminates the acoustic compromise of a projector enclosure and the maintenance considerations of lamp replacement. The 3m × 2m screen size — achieved through the modular nature of The Wall — provides a field of view at the primary seating position that is simply not achievable with any conventional residential display technology.

Source material is passed through a Lumagen Radiance Pro video processor before reaching the display. The Lumagen handles scaling, aspect ratio management and HDR tone mapping with a precision that no display’s internal processing can match — ensuring that every source, from Kaleidescape 4K to Sky Q, reaches the screen in the best possible condition.

Sources

Three primary sources serve the cinema, each chosen for a specific purpose:

Kaleidescape Movie Server — the reference source for film content. Kaleidescape stores films at the highest available quality — lossless audio, full HDR video — and delivers them without the compression artefacts or internet dependency of streaming services. For a system of this calibre, source quality matters. The difference between a Kaleidescape rip of a film and the same film on a streaming service is audible and visible in a room that can resolve it, and this room can.

Sky Q — for live television and broadcast content. Integrated into the control system so that switching to Sky Q from any other source is a single button press.

Apple TV — for streaming services, AirPlay integration and 4K HDR content from the Apple ecosystem.

Audio for the cinema is supplemented by a Bluesound Node streaming audio device running Roon for lossless music playback. This connects the cinema room into the wider whole-house Roon ecosystem — allowing the same music library, the same playlists and the same playback quality to be enjoyed in the cinema room as throughout the rest of the property. Roon’s integration with the Bluesound Node provides access to the full music library at lossless quality, with Roon’s own room correction and DSP capabilities adding a further layer of refinement if required.

The Speaker System — A Complete Steinway Lyngdorf Layout

The speaker system is a complete Steinway Lyngdorf installation, with every position in the layout filled by a Steinway component. This matters — the integrated system approach that Steinway Lyngdorf specifies means that the tonal character, the transient behaviour and the sensitivity of every speaker in the room are matched. Mixing manufacturers introduces tonal inconsistencies that RoomPerfect can partially correct but cannot eliminate. A complete Steinway Lyngdorf installation gives RoomPerfect the cleanest possible starting point.

Left and Right Front — Steinway & Sons IW-66

The front left and right channels are handled by the IW-66 — Steinway Lyngdorf’s grand in-wall speaker, designed specifically for medium and large high-performance home theatres. At 140cm tall and weighing 44kg per unit, the IW-66 is a substantial presence behind the screen. Its defining feature is the triple Air Motion Transformer (AMT) tweeter array — three AMT tweeters, two of them angled, arranged in a Focusing Array Tweeter (FAT) configuration that produces even vertical sound dispersion across all rows. Whether a viewer is in the front row or the rear row, the tonal balance of the IW-66 is consistent. Maximum SPL is 120dB at one metre — with the dynamic headroom that a large-format film soundtrack demands.

Centre Channel — 2 × Steinway & Sons IW-26H (Above and Below Screen)

The centre channel uses two IW-26H speakers in an above-and-below-screen configuration — one positioned above the screen, one below. This is Steinway Lyngdorf’s recommended approach for large screens where a single centre speaker cannot provide consistent coverage across the full vertical height of the display. The IW-26H is a horizontal in-wall speaker designed for exactly this application, with a frequency response reaching to 22kHz and a maximum SPL of 117dB. The combined output of two IW-26H units provides a centre channel of exceptional authority — critical for dialogue intelligibility and for maintaining the spatial coherence of the front sound stage.

Subwoofers — 4 × Steinway & Sons LS bw

Bass is handled by four LS bw boundary woofers — Steinway Lyngdorf’s stackable in-room subwoofer system, designed to be placed against room boundaries where boundary reinforcement extends bass output and reduces the excursion required of the drivers. The LS bw covers 20Hz to 500Hz — extending well into the lower midrange to ensure seamless integration with the main speakers — with a maximum SPL of 117dB (120dB in a corner position). Four units provide the bass output and headroom that a large-format cinema room demands, distributed around the room to minimise the standing wave problems that a single subwoofer position inevitably creates.

Rear Surround — 2 × Steinway & Sons Model O

Rear surround channels are handled by the Model O — a full-range freestanding loudspeaker that requires no separate subwoofer. Named after the largest of Steinway’s “small grand” pianos, the Model O uses the same AMT tweeter found throughout the Steinway Lyngdorf range, paired with a 6″ aluminium midrange driver and an 8″ passive radiator for bass extension to 35Hz. Available in any finish that Steinway & Sons offers on their pianos — high gloss, custom lacquer, wood veneer — the Model O integrates into the interior of the room as a considered design element rather than an afterthought. Its full-range capability ensures that surround content is reproduced with the same resolution and dynamic range as the front channels.

Height Channels — 2 × Steinway & Sons IW-16

Dolby Atmos height channels are provided by two IW-16 in-wall speakers, installed in the ceiling. The IW-16 is the compact member of the Steinway Lyngdorf in-wall family — a high-sensitivity, high-efficiency speaker designed for positions where installation space is constrained, delivering the same AMT tweeter performance as the larger IW models in a considerably smaller footprint. For height channels, whose primary role is the reproduction of atmospheric and overhead effects, the IW-16 provides the resolution and consistency that the Dolby Atmos object-based audio format demands.

Electronics — P300 Processor and A2 Amplifiers

Steinway & Sons P300 Processor

The heart of the system is the Steinway & Sons P300 — a fully digital surround sound processor designed from the outset as the control centre of a Steinway Lyngdorf cinema system. The P300 decodes all current immersive audio formats — Dolby Atmos, DTS:X and Auro-3D — and manages the signal path from source to amplifier in the digital domain throughout, with no digital-to-analogue conversion until the very last stage before the amplifiers. This preserves the integrity of the audio signal in a way that conventional analogue signal paths cannot match.

The P300 also hosts RoomPerfect — Steinway Lyngdorf’s proprietary room correction technology, and the single most important element of any Steinway Lyngdorf installation. Unlike conventional room correction systems, which measure a single point and apply a correction curve, RoomPerfect measures the acoustic behaviour of the entire room at multiple positions throughout the space. The algorithm then calculates corrections that optimise the sound across the full listening area — not a single sweet spot but every seat. The result is a system that sounds as if the room’s acoustic problems have been physically resolved rather than electronically compensated. It is genuinely remarkable in its effect, and it is the reason that a Steinway Lyngdorf system in a well-built room sounds the way it does.

4 × Steinway & Sons A2 Amplifiers

Amplification is provided by four Steinway & Sons A2 amplifiers — fully digital, Class D amplifiers that maintain the audio signal in the digital domain to the very last moment before the speaker terminals. Each A2 provides two channels of amplification, giving a total of eight amplified channels across the four units. The fully digital architecture eliminates an entire category of distortion that affects conventional amplifier designs — the conversion artefacts introduced when a digital signal is converted to analogue for amplification and then reconverted. Every speaker in the system — IW-66, IW-26H, LS bw, Model O, IW-16 — is driven by Steinway Lyngdorf’s own amplification, maintaining the integrated system approach throughout.

Control System — RTI and Lutron

The cinema is controlled by an RTI control system, providing a single interface for every function in the room — source selection, volume, display input, lighting and blinds. One button press starts the system: the display wakes, the processor selects the source, the Lutron lighting dims to the correct scene and the blinds close if required. A second press powers everything down. The complexity of the system — nine speaker channels, four amplifiers, a video processor, three source components and a streaming audio system — is entirely invisible to the user.

Lutron Homeworks QS handles all lighting and blind control in the cinema, integrated into the wider whole-house Lutron system. Lighting scenes are programmed for each use case: a bright scene for entering and exiting, a dim warm scene for viewing, a brighter interval scene and a specific calibration scene used during RoomPerfect measurement. The blinds close automatically when the cinema mode is selected, ensuring complete light control for the display and the optimal acoustic environment for the speakers.

RoomPerfect Calibration — What It Does and Why It Matters

RoomPerfect calibration is not a process that can be rushed or approximated. Our fully trained and accredited team performed Room Perfect calibration after the installation was complete. The process involves placing a calibration microphone at a large number of positions throughout the room — typically fifteen to twenty or more — with the P300 playing test signals through each speaker in turn. The algorithm analyses the response at each microphone position and builds a complete three-dimensional model of the room’s acoustic behaviour: how sound propagates, where reflections occur, how bass builds at room boundaries, how the frequency response varies across the seating positions.

From this model, RoomPerfect calculates a correction filter for each speaker — not a simple EQ curve, but a time-domain correction that addresses phase relationships and early reflections as well as frequency response. The correction is applied within the P300 in the digital domain, preserving the full resolution of the audio signal. The result is a speaker system that behaves, within the measurement bandwidth, as if the room’s acoustic problems do not exist. Bass is even and controlled across every seat. The stereo image is stable and precise. The height channels integrate seamlessly with the floor-level speakers. And the tonal character of the Steinway Lyngdorf speakers — their particular quality of resolution, their speed and their dynamic honesty — is fully preserved.

Lossless Audio — Roon and Bluesound

The inclusion of a Bluesound Node running Roon reflects a design principle that is central to this installation: the cinema room should be as capable for music as it is for film. A Steinway Lyngdorf system at this level reproduces music with the same authority and resolution it brings to film soundtracks, and it would be a waste to limit it to video content only.

Roon provides access to the full music library stored on the home’s central music server, as well as Tidal and Qobuz streaming at lossless and hi-res quality. The Bluesound Node acts as a Roon endpoint in the cinema, receiving the audio stream from the Roon core and passing it to the P300 via a digital connection. Music playback in the cinema is therefore lossless, at the full resolution of the source file, with no compression or transcoding. For a system capable of resolving the difference, this matters.

The Result

A home cinema room that performs at the highest level the medium currently offers. The combination of a properly constructed acoustic environment, a complete Steinway Lyngdorf speaker and electronics system, RoomPerfect calibration, Samsung The Wall display and lossless source material produces an experience that is difficult to articulate without reference to the experience itself. Film soundtracks reveal detail and spatial precision that other systems obscure. Music played through the system has the quality of a high-end listening room. The room is simple to use, reliable and completely integrated with the rest of the home.

We are authorised Steinway Lyngdorf dealers and have been designing and installing systems at this level for over 25 years. If you are considering a Steinway Lyngdorf home cinema, we would welcome the opportunity to discuss your project.

Contact Custom Controls to arrange a consultation, or visit our Steinway Lyngdorf dealer page to learn more about our experience with the system.