Root 4
4×4 matrix DSP amplifier delivering 250W per channel at 8 ohms. Bridgeable to 2×800W mono at 4 ohms. 48-bit DSP with 20 preset configurations, now controlled from XSCACE Studio.
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nothing to break the plane.
- 01No visible fixings
- 02No draft angle
- 03No unnecessary pattern
- 04No compromise on finish
- →Just material. Just form.
it sits where it is needed.
43.9 millimetres tall, in a rack or on a shelf. Every photo is a real installation; open one to read how it was done.
everything else.
7 drawers. Each opens in place, so nothing leaves the page.
The chassis is the heatsink.
6061-T6 aerospace aluminium machined to heatsink geometry, so the chassis itself works as the heatsink for the output stage, with a fan moving air across it. Every fastener is hidden.
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 in XSCACE Studio
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.
XSCACE Studio gives you complete control over every parameter — EQ, routing, crossovers, delay, gain, and limiting — from a single interface.
Get XSCACE Studio- Power RMS
- 250W
- Total Power
- 1000W
- Channels
- 4
- Amp Class
- Class D
- Impedance
- 8Ω
- Dimensions
- H 43.9 × W 482.9 × D 324.9 mm
- Weight
- 6.5kg
- Housing
- Aluminium
- Colours
- Black
- Power Type
- Powered
- THD+N
- <0.1% @ 1KHz, 1W, 8Ω
- Inputs
- XLR balanced × 4
- Outputs
- Speakon NL4 × 4
- DSP
- 48KHz, 48-bit Fixed-Point DSP, 24-bit A/D & D/A
- SNR
- >109dB @ 1KHz
- Protection
- Short, DCP, OVP, UVP, OCP, OTP
- Rack Mount
- 1U
Commercial zones
Eight Cane with four Acacia 10 Passive on one Root 4, an Air Mini per zone.
Outdoor deck
Four Camphor 8 around a deck on the Root 4, the Air Mini streaming.
A different room? Plan it in two minutes.
Room Solutions suggests the speakers and the sub for your room. Floorplan Sound Simulation predicts the coverage.The back panel, explained
Everything a Root 4 needs arrives at the back: mains, four amplifier outputs, four balanced inputs with link-through, and three ways to talk to XSCACE Studio.
- 1
Mains inlet
Locking powerCON inlet. Marked for 100–120 V and 200–240 V, 50/60 Hz.
- 2
Channel 4 output
Four-pole locking connector beside the mains inlet for the fourth amplifier channel.
- 3
Speaker outputs CH1–CH3
Speakon NL4 outputs for channels 1 to 3. Bridged pairs are configured in XSCACE Studio.
- 4
NET and RS-485
Ethernet for control and monitoring from XSCACE Studio; RS-485 for third-party control systems.
- 5
USB
Direct USB-B connection to a laptop running XSCACE Studio for configuration on site.
- 6
Balanced inputs
XLR inputs for channels 1 to 4. CH1 LINK and CH3 LINK pass the signal on to the next amplifier in the rack.
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 the Root 4 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.
A Preset for Every XSCACE Speaker — and Yours
Connect a Cane, a Bonsai, a QuadCane, and the amplifier lists an XSCACE factory preset for that speaker: crossover, EQ and limiter threshold already set from the model's real driver and power handling. Load it and the zone is playing correctly before anything has been measured. Tune further from there, then save the result under your own name — the next identical zone in the project starts from a proven configuration instead of the factory default.
One Number, Not Thirty-Four
Per-channel limiting built on a peak-and-RMS combo: a 34-point gain transfer curve plus five time constants. You set one value — threshold in dBFS — because that is the number printed on the driver's datasheet and therefore the one an installer actually has. The device generates the curve from it, and the app states the consequence in plain language: at −6 dBFS, output is held there and peaks above it are caught in about 2 ms. Peak and RMS detectors run in parallel and whichever asks for more reduction wins. 33 factory presets across the range ship with thresholds derived from each speaker model's real power handling; an amplifier lists the presets matching its own channel count.
- About XSCACE Studio →
What is the XSCACE Root 4?
4×4 matrix DSP amplifier delivering 250W per channel at 8 ohms. Bridgeable to 2×800W mono at 4 ohms. 48-bit DSP with 20 preset configurations, now controlled from XSCACE Studio. 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 delivers 4 × 250W @ 8Ω / 4 × 450W @ 4Ω.
What type of product is the Root 4?
The Root 4 is an amplifier product.
What DSP does the Root 4 use?
48KHz, 48-bit Fixed-Point DSP, 24-bit A/D & D/A. Every crossover, EQ band, delay and limiter runs on that processor and is set from XSCACE Studio over the network; the configuration is stored on the Root 4 itself.
Can a room calibrated on the Root 4 be verified against CEDIA RP22?
Yes. XSCACE Studio includes a CEDIA RP32 verification checklist. CEDIA/CTA-RP22 defines four objective performance levels a room can be designed to, and CEDIA RP-32 is the companion practice for measuring and verifying whether it reached one. Set the target RP22 level and the room volume, and each parameter is marked pass or fail against RP22's table for that level — interchannel level and time, polarity, sub integration, background noise floor as an NCB rating, in-room bass extension, response below the transition frequency, early reflections against the direct sound, and reflection decay time to ISO 3382-1. Parameters needing a test the current version does not run are marked "not measured" rather than assumed, and the exported client report states that this is measurement to RP32 practice rather than a certification.
Do the Root 4 settings survive a power cut?
Yes. Gain, EQ, crossover, delay and limiter settings are held in non-volatile memory on the amplifier, so it returns to the configured state after any power event or firmware update.
What is the power output of the Root 4 at 4 ohms?
4 × 450W @ 4Ω.
How much space does the Root 4 need?
The chassis is 43.9 mm high, 482.9 mm wide and 324.9 mm deep.
How deep is the Root 4?
The Root 4 requires 324.9mm of depth.
take it with you.
What you need to specify it, show it to a client, or control it once it is in.