How Every XSCACE Installation Is Wired, Controlled and Calibrated

How Every XSCACE Installation Is Wired, Controlled and Calibrated

Two signal chains, three stages, and the reasoning behind each: how an XSCACE system goes from a traced floor plan to a calibration report.

Every XSCACE system, from a single bedroom to a clubhouse gym, is put together the same way: planned in the simulator, wired in one of two signal chains, controlled from the app that matches the hardware, and calibrated with measurement. This is that method written down — the XSCACE installation workflow, and the reasoning behind each stage.

It exists because most audio problems are not equipment problems. They are a layout that was never predicted, a subwoofer that was never integrated, or a system nobody measured. Each stage below closes one of those gaps.

The signal chain

There are two chains, and which one applies depends on whether the speakers are passive or powered. Getting this right is the difference between a system that works and a box that cannot drive what is attached to it.

Chain one: streaming into a DSP amplifier

This is the full-fat version, used wherever passive architectural speakers and subwoofers are involved:

1. Source → amplifier, line level. An Air Mini or Air Amp handles AirPlay 2, Spotify Connect and Bluetooth. Air Mini in particular is a pure streaming preamp with no internal amplifier, so it hands a line-level signal onward rather than driving anything itself.

2. DSP amplifier → powered subwoofers, line level out. A powered subwoofer like Juniper brings its own amplification, so it takes a line feed and costs the amplifier no channels.

3. DSP amplifier → passive speakers, speaker level out. One channel per speaker, so each carries its own delay, level and EQ.

That third point is the one that gets compromised most often, and it is the one worth defending. Xylem 4 supplies 400W across 4 channels — 100W each, matched to QuadCane's 100W RMS rating. Four speakers on four channels can be aligned to the room individually. The same four paralleled onto one output can only ever be averaged.

The XSCACE Floorplan Sound Simulation planner with a room traced to scale and speakers placed against the plan

Chain two: streaming amplifier straight to speakers

For one or two rooms of passive speakers with no subwoofer and no DSP requirement, Air Amp amplifies directly and the chain is simply source to speakers. It is the right answer when the room is small and the layout is simple — and the wrong answer the moment a subwoofer, a distributed array, or per-channel delay enters the picture.

Stage one: planned

A layout should be proven before anything is ordered. XSCACE Floorplan Sound Simulation runs in the browser, free, with nothing to install: trace the plan, set the scale, place the speakers, and read what comes back.

SPL coverage predicted per zone, so the far corner is proven rather than discovered

Room modes flagged on the plan — uneven bass located instead of equalised away afterwards

First-reflection points marked, which decides placement more often than taste does

Full Dolby reference geometry checked speaker by speaker, where the room is a cinema

An automatic bill of quantities, an Excel quote that round-trips your prices, and a client-ready PDF

Other manufacturers can go on the plan too — the bill of quantities does not care whose speakers are on it. If you want the quoting side in detail, that is covered in how to build an audio BOQ.

Stage two: controlled

Two apps, split by hardware, and the split is worth stating precisely because it is the most common source of confusion:

XSCACE Controller — iOS and Android, for the Air streaming amplifiers. Volume, EQ, grouping and permanent zones from a phone. Room correction here uses the phone microphone.

XSCACE Studio — macOS, for the Xylem, Root and Lucifer DSP amplifiers. Routing matrix, per-channel gain and delay, parametric EQ on inputs and outputs, Bessel / Butterworth / Linkwitz-Riley crossovers at 12–48 dB per octave, limiting and BTL bridging.

Windows installations already commissioned on XSCACE ROOTS DSP keep working — the DSP controls are identical, and the reason to move is the calibration toolkit rather than the amplifier settings.

Parametric EQ in the XSCACE Controller app on a phone

Stage three: calibrated

Prediction is a model. Calibration is what the room actually did. The toolkit inside XSCACE Studio is free on macOS and carries eleven instruments: SPL, delay, levels, polarity, frequency response, THD, sub alignment, transfer function, RT60, RTA and export.

One sweep per channel fills delay, polarity and frequency response together — roughly 27 seconds for three channels

Delay measurement agrees with REW to 0.01ms, and refuses rather than guesses when the signal-to-noise is too low

RT60 is aligned to ISO 3382; the RTA rates background noise from NC-15 to NC-65

THD is measured as H2+H3 across 30Hz–5kHz, gated against the measurement floor

Sub Align integrates the subwoofer deterministically, then re-measures to verify its own correction

Impulse responses export to WAV for REW or Smaart; sessions export to PDF or raw JSON

The Sub Align instrument in the XSCACE Studio calibration toolkit, aligning a subwoofer against the main speakers

The measurement instruments work on any system the microphone can hear, regardless of whose amplifier is in the rack. The full instrument-by-instrument walkthrough is in the audio calibration software guide.

The XSCACE installation workflow, worked through one room

A clubhouse gym glazed on three sides, with a timber floor and no soft furnishing, runs four QuadCane slim arrays on the piers, one Xylem 4 driving them at one channel each, two Juniper powered subwoofers on the Xylem's line output, and an Air Mini as the source. Planned in the simulator because a fully reflective room is the last place to specify by eye; controlled from XSCACE Controller so staff never touch a rack; calibrated in Studio because RT60 and the noise floor are the numbers that decide whether it works. The full write-up is in the clubhouse gym case study.

Installed

The three stages exist to produce something specific on a wall. These two rooms are in the same residential development, specified the same way, and they show the two ends of the range — a large glazed gym and a small hard games room.

A glazed clubhouse gym

Four QuadCane slim arrays on the plaster piers between full-height glazing, one Xylem 4 driving them at one channel each, two Juniper powered subwoofers on the amplifier's line output, and an Air Mini as the source. At 21mm deep the speakers sit on the pier without projecting into a room people move through quickly.

A champagne-finish XSCACE QuadCane slim array surface-mounted on a textured plaster pier between floor-to-ceiling gym windows
Four QuadCanes on the piers, one channel each from a Xylem 4

The full specification, and why two subwoofers rather than one, is in the clubhouse gym case study.

A clubhouse billiards room

The same method at a smaller scale: Cane in white, distributed around the perimeter of a room whose middle is occupied by a table. At 183.5 × 43 × 23mm against textured plaster and painted brick, the speaker reads as a switch plate rather than as equipment — which in a shared amenity space is the specification decision, not an aesthetic one.

Close-up of a white XSCACE Cane slim array on textured plaster at a raking angle, showing its 23mm depth and perforated grille
Cane in white, distributed around a room with no listening position

That room is written up in the clubhouse billiards case study.

Both rooms are hard-surfaced with no fixed listening position, and both were solved the same way: distribute the sources, give each its own amplifier channel, predict the coverage before ordering, and measure the result afterwards. The finishes differ; the method does not.

Why the order matters

The three stages are not interchangeable, and skipping one has a predictable cost. Skip planning and the layout is a guess that gets discovered at handover, when the ceiling is closed. Skip the control decision and someone specifies a phone app for a DSP amplifier it was never meant to configure. Skip calibration and there is no evidence — a client complaint stays subjective, and a subwoofer that was never integrated stays that way.

Done in order, each stage produces a document: a coverage plan and bill of quantities, a saved configuration, and a calibration report. Those three documents are what separate an installation from an argument.

Frequently Asked Questions
What is the correct signal chain for an XSCACE system?

For passive speakers with a subwoofer: the streaming source feeds the DSP amplifier at line level, the DSP amplifier feeds powered subwoofers from its line-level output, and its speaker outputs drive the passive speakers. For a small room with passive speakers and no subwoofer, an Air Amp can amplify directly with no DSP amplifier in the chain.

Does the Air Mini amplify speakers?

No. Air Mini is a pure streaming preamp with no internal amplifier — it handles AirPlay 2, Bluetooth 5.0 aptX-HD and Spotify Connect, and passes a line-level signal to an amplifier. Air Amp, by contrast, does amplify and can drive passive speakers directly.

How do you connect a powered subwoofer to a DSP amplifier?

Through the amplifier's line-level output, not its speaker output. A powered subwoofer such as Juniper brings its own amplification, so it needs signal rather than power — which also means it consumes none of the amplifier's channels.

Should each speaker have its own amplifier channel?

Where possible, yes. One channel per speaker lets each carry its own delay, level and EQ so it can be aligned to the room. Xylem 4 provides 400W across 4 channels, or 100W each, which matches QuadCane's 100W RMS rating exactly.

XSCACE Controller or XSCACE Studio — which app do I need?

It depends on the hardware, not on preference. XSCACE Controller (iOS and Android) is for the Air streaming amplifiers. XSCACE Studio (macOS) is for the Xylem, Root and Lucifer DSP amplifiers, and is also where the calibration toolkit lives. A system containing both uses both.

Can you predict speaker coverage before installing?

Yes. XSCACE Floorplan Sound Simulation traces the plan, places speakers and predicts SPL coverage per zone, flags room modes and first-reflection points, checks Dolby reference geometry, and outputs a bill of quantities and a client-ready PDF. It runs in the browser and is free to design with.

Do I need measurement software if the system is already tuned by ear?

Tuning by ear cannot tell you the RT60 of the room, the background noise rating, whether a subwoofer is time-aligned, or whether distortion is rising at the level you are using. It also produces no document. The XSCACE Studio toolkit measures all of those and exports a PDF report.

Does XSCACE software work with other manufacturers' equipment?

Yes. Speakers from other manufacturers can be placed on a Floorplan plan and appear in the bill of quantities, and the calibration instruments measure any system the microphone can hear. Impulse responses also export to WAV for REW or Smaart.

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