Powerful Mid-Frequency and Bass Drivers with Unidirectional Carbon Fiber Multi-Section Cones with Nomex® Backers
Masterpiece CI loudspeakers feature cones custom-built using unidirectional carbon fiber, a material that is twice as strong as steel but with a sixth of the density, for exceptional rigidity without excessive weight. They are designed in multiple sections to take full advantage of the benefits of this material.
Each cone is reinforced by a Nomex backer, for additional damping that prevents ringing and reduces breakup modes in these extremely rigid cones. The drivers feature powerful, efficient magnet structures, enabling massive excursion and huge sound output, while preserving deep bass details, even at sustained, lifelike volume levels.
Monument 7XW features passive radiators constructed from the same high-strength, low mass material as the woofers—unidirectional carbon fiber multi-section cones with Nomex® backers. These passive radiators ensure shockingly powerful, dynamic, and distortion-free bass from a small, unobtrusive, sealed enclosure.
Driver Engineering Details
To deliver accuracy in the critical midrange, mid-frequency drivers feature a specially engineered “stiff” suspension. Stiffening the suspension (the spider and surround) raises the driver’s resonant frequency and optimizes its performance to achieve a natural roll-off and inherently operate within an ideal range for a mid-frequency reproduction (as opposed to a comparably sized woofer).
Each cone includes a concave dust cap that adds additional strength and rigidity while further reducing break up modes. An inverted surround design maximizes clearance behind the grille cover to enhance driver excursion, clarity, and linearity.
Phenolic Baffle and Sealed Back Box Enclosure
One key to replicating the performance of traditional loudspeakers with hidden, built-in speakers is the use of sealed, controlled-volume, back boxes.
Statement 40XW, Monument 7XW, Tribute 5XW, and Icon 3XW, feature baffles of incredibly dense phenolic resin polymer fronted by an aluminum faceplate. This phenolic resin polymer is the same material we use in the Neolith's massive, acoustically-inert cabinet. It offers extraordinary material consistency that naturally minimizes deleterious resonances and vibrations.
Masterpiece CI back boxes fit into standard stud walls. They provide controlled and predictable airspace (volume) within which the specially engineered drivers can perform at their best. The sealed box removes variables, like wall cavity size and construction quality, from the acoustic equation, guaranteeing a consistent, accurate performance, regardless of installation specs.
Also, the hermetically sealed design keeps sound from leaking through walls.
By controlling the sealed space volume and damping characteristics, and maintaining complete control over driver performance, crossover design, and cabinet construction, Masterpiece CI in-wall and in-ceiling speakers achieve an emotionally engaging experience on par with the performance of the world's most exceptional floorstanding speakers. (Our own.)
Die-cast Aluminum Mounting-Lock System
A simple, yet robust die-cast aluminum mounting-lock system maximizes strength while allowing quick, trouble-free installation. Pocketed screw holes help hold the drill steady, making installation a snap. When not in use, mounting locks are secured within a self-contained housing. When moved into place, they couple the chassis firmly to the ceiling or wall, increasing the rigidity of surfaces. If ever removed, the locks retract and latch back in their housings. Each speaker includes a full-size installation template featuring quick-reference instructions, and die-cut guides for marking the cutout hole.
Spring-Loaded Binding Posts
With easy pre-installation access, our spring-loaded binding posts feature a large 4.5mm wire access hole and connect via banana plug, pin, or 10AWG bare wire.
Proprietary Vojtko™ Crossover Networks
Vojtko Crossovers are named after MartinLogan's chief audio technologist, Joe Vojtko.
His unique approach to crossover design is just as crucial to MartinLogan's Truth in Sound as are our innovative electrostatic and Folded Motion thin-film driver technologies. A Vojtko Crossover isn't just a set of design requirements; it's a philosophy.
Vojtko Crossovers are hand-built from the highest quality components and avoid overly complex topologies. This crossover has a straightforward objective: breathtaking realism.
Specifications
Frequency Response:
78–25,000 Hz ± 3 dB
Tweeter Dispersion (horizontal x vertical):
80° x 30°
Sensitivity:
94 dB @ 2.83 volts/meter
Impedance:
4 ohms. Compatible with 4, 6, or 8 ohm rated amps.
High Frequency Driver:
1.25 x 2.4 inch (3.2 x 6.1 cm) Folded Motion XT Obsidian transducer
- 4.5 x 2.75 inch (11.4 x 7 cm) diaphragm.
Crossover Frequency:
2400 Hz
Tweeter Aiming:
Rotatable tweeter for horizontal or vertical installations
Low Frequency Drivers:
Two 5.25-inch (13.33 cm) black unidirectional carbon fiber multi-section cone with Nomex® backer and cast aluminum basket, sealed back chamber format.
Components:
Custom air core coil inductors, polypropylene film capacitors, and low DF electrolytic capacitors. Thermal/current protection.
Suitable Amplifier Range:
20–250 watts
Max Power Handling:
125 watts
Binding Post Inputs:
Push style
Weight:
15.5 lb (7 kg)
Dimensions (overall size):
15.98 x 9.94 x 4.11 inches (405.95 x 252.6 x 104.3 mm)
Required Wall Opening (includes tolerance):
14.66 x 8.64 inches (372 x 219 mm)
Projection From Wall Surface:
0.31 inch (7.8 mm)
Depth Behind Wall Surface:
3.8 inches (96.5 mm)
Optional Accessories:
Pre-install bracket (PN: 3XWBRK)