Root 4
4×4 matrix DSP amplifier delivering 250W per channel at 8 ohms. Bridgeable to 2×900W mono at 4 ohms. 48-bit DSP with 20 preset configurations, now controlled from XSCACE Studio.
Pricing is quoted by your regional distributor. Find yours →
Power Output
250W per channel.
Up to 800W bridged.
4 channels · Class D · 1U rack · XLR balanced inputs · Speakon NL4 outputs · 48-bit DSP
Signal Routing
Any input.
Any output.
The 4×4 routing matrix lets you send any input signal to any combination of output channels. Sub mixes, zone splits, mono sums — all programmable without external hardware.
Diagonal = default identity routing (In 1→Out 1, etc.) · Any cell is programmable via Root 4 DSP Software
Bridge Mode
4 channels stereo.
Or 2 × 800W mono.
Bridge any adjacent channel pair into a single high-power mono output. Drive subwoofers or high-SPL zones without additional hardware.
Speakon NL4 — Bridge wiring
Signal Path
Balanced in.
Speakon out.
DSP Control
Full control.
Without limits.
Root 4 DSP Software gives you complete control over every parameter — EQ, routing, crossovers, delay, gain, and limiting — from a single interface.
Download Root 4 DSP SoftwareContents7 sections
Technical Specifications
Built different. By design.
Set up in XSCACE Studio
DSP control, intelligent room correction and a full professional calibration suite. Every parameter on this 4-channel dsp power amplifier · class d — levels, delay, crossovers, limiter and EQ — opens in the same application that configures the rest of the range, so an installer learns one tool.
Live DSP Control
Connect to any Xylem on the network and the full signal chain opens up: per-channel gain and delay, four crossover modes with live curve rendering, and six bands of parametric EQ per channel. Changes hit the DSP instantly over the local network — no round trips, no cloud. Discovery is zero-configuration: amplifiers announce themselves, so there is nothing to pair and no address to type. The delay block itself is accurate to 3 µs on a commanded 5.000 ms.
Arrival-Time Measurement That Survives Wireless
Aligning speakers needs each one's arrival time at the listening position to sub-millisecond accuracy — sound moves about 34 cm per millisecond, so a 1 ms error puts a speaker a third of a metre from where it really is. A wired rig gets this from a loopback cable, where one clock drives playback and capture. Over a network there is no loopback and the receiver's clock is not yours, so XSCACE Studio rides a train of quiet pilot bursts throughout the entire measurement — including underneath the sweep — and reconstructs the receiver's real time map from them. Against REW, the reference tool in this field, it agreed to 0.01 ms.
Eleven-Instrument Calibration Toolkit
Eleven instruments: X-Sense EQ, SPL Meter, Delay, Levels, Polarity, Frequency Response, Sub Align, Transfer Function, RT60, RTA and Mic Cal. One run yields distance, level, polarity and signal-to-noise for every channel. Every measurement can export the raw microphone capture as a 16-bit WAV, so any disputed result can be dissected offline against a reference implementation.
It Refuses Rather Than Guesses
A measurement tool that returns a confident wrong number is worse than one that returns nothing. RT60 follows ISO 3382-1 practice — Lundeby truncation, a minimum 12 dB fit span, an r² ≥ 0.90 quality gate — and when a room will not support a defensible reading it says so and tells you which way to move: raise the level, or quieten the room. Every run also measures its own worst timing warp and warns above 0.5 ms, recommending a wired input for sub-millisecond work.
- About XSCACE Studio →
Built to work together
Common installations
The signal chain.
Root 4 handles DSP and amplification in a single 1U chassis. XLR balanced in, Speakon NL4 out — no separate processor required.
Real installations.
Root 4 deployed in real client homes — see how it was specified, placed and paired.
Root 4 in context
- What is the XSCACE Root 4?
- Specified for luxury residential AV racks, commercial hospitality, corporate AV, and multi-zone architectural audio systems in Canada, the UK, and India.
- What is the power output of the Root 4?
- The Root 4 is rated at 250W RMS into 8Ω.
- What type of product is the Root 4?
- The Root 4 is an amplifier product.
- How deep is the Root 4?
- The Root 4 requires 324.9mm of depth.