Ex Machina Arcturus 3-Way Active Studio Monitor – Flagship Precision for Main Studio Monitoring
The Ex Machina Arcturus is the flagship 3-way active studio monitor from Ex Machina Soundworks, engineered for soffit-mounted main monitor applications. Built on advanced coaxial and axisymmetric technology derived from the Quasar, the Arcturus delivers unmatched clarity, accuracy, and low distortion for critical listening environments.
Ultra-Low Distortion SEAS Subwoofers
At the heart of the Arcturus are two 26cm SEAS Extreme Series subwoofers, powered by a split-gap twin-ring radial neodymium motor. This innovative design provides exceptionally low distortion, ultra-linear performance, and unmatched output symmetry—hallmarks of Ex Machina’s highest engineering standards.
Metamodal Coaxial Midrange and Tweeter
The coaxial midrange/tweeter assembly features Composite Sound Metamodal TeXtreme diaphragms—ultralight carbon-fiber materials with optimized fiber geometries to suppress unwanted resonances. The carefully engineered waveguide, underhung surround, and aligned acoustic center ensure a controlled off-axis response with exceptional phase coherence and minimal distortion.
High-End DSP and Amplification
Inside, the Arcturus shares its electronics platform with the Quasar, incorporating an external 2RU remote AMP/DSP unit for superior cooling and accessibility. It features AKM Velvet Sound DAC/ADC chips (AK4493/AK5572) for pristine conversion, Hypex Ncore amplifiers for clean and efficient power, and 5th-gen SHARC+ DSP for accurate and dynamic system control.
Sealed Cabinet Design for Precision
The enclosure is built from dense, damped Valchromat, avoiding the phase shift and turbulence issues of ported designs. The 38mm laminated front baffle offers superior rigidity, allowing the dual subwoofers to operate with minimal cabinet resonance. Sculpted insets around the woofers eliminate acoustic lip shadow for smoother dispersion.
SPECIFICATION OVERVIEW:
Linear Frequency Response: +/- 1db 28hz – 30khz (measured at 50cm cal position)
Low Frequency Cutoff: -6db at 18hz
Linear Phase Response: +/- 15° 20hz – 30khz
Maximum Continuous SPL @ 1m: 117db, 112db @50hz
THD+N (94db @ cal position): < .5% Power Average 100hz – 30khz
Coverage Angle: 90° conical
DOWNLOADS:
DRIVER COMPLEMENT
176mm (7”) midrange, 25mm (1”) tweeter Custom SEAS/Ex Machina/Composite Sound Metamodal TX™ mid/high coaxial
Twin 270mm (10.5”) Flagship Twin Ring Radial Neodymium Extreme Series Architecture Subwoofers
CROSSOVERS
200hz Sub/Mid, digital 4th order, phase corrected
2khz Mid/Tweet, digital 4th order, phase corrected
AMPLIFIER COMPLEMENT
Subwoofers: Hypex NCAS500MP – 800W RMS
Midrange: Hypex NCAS500MP – 100W RMS
Tweeter: Hypex NCAS500MP – 100W RMS
AMPLIFIER VENTILATION REQUIREMENTS
1RU above and below the amplifier pack
DSP/CONVERSION
A/D Chipsets: AKM AK5572EN
D/A Chipsets: AKM AK4493EQ
DSP: 5th Gen SHARC+ AD21565
INPUT SENSITIVITY
8vrms to full scale (default configuration)
2vrms to full scale (optional high gain configuration)
MASS & DIMENSIONS
839mm H x 338m W x 355mm D (33″ x 13.3″ x 14″)
43kg (95lbs)
2RU Amplifier/DSP Pack – 5kg (11lbs)