Specification Sheet
7x drivers
• 1x tweeter: Folded Motion
®
XT Obsidian
• 1x mid: 6.5-inch
• 2x bass: 6.5-inch
• 3x passive: 6.5-inch
• Unidirectional carbon ber multi-section
cones with Nomex
®
backers
• Vojtko™ crossover network constructed
from audiophile-grade components
• Phenolic bae
• Sealed back box
• Die-cast aluminum mounting-lock system
• Pre-install brackets (sold separately)
SPECIFICATIONS
Frequency Response 52–25,000 Hz ± 3 dB
Tweeter Dispersion
(horizontal x vertical)
80° x 30°
Sensitivity 95 dB @ 2.83 volts/ meter
Impedance 4 ohms. Compatible with
4, 6, or 8 ohm rated amps.
Crossover Frequencies 200, 3200 Hz
Tweeter Aiming Rotatable tweeter for horizontal
or vertical installations
High-Frequency Driver 1.25 x 2.4 inch (3.2 x 6.1 cm)
Folded Motion XT Obsidian
transducer with 4.5 x 2.75 inch
(11.4 x 7 cm) diaphragm.
Mid-Frequency Driver 6.5-inch (16.5 cm) black unidirectional
carbon fiber multi-section cone
with Nomex
®
backer and cast
aluminum basket, sealed back
chamber format. Concave dust cap.
Low-Frequency Drivers Two 6.5-inch (16.5 cm) black
unidirectional carbon fiber
multi-section cone with Nomex
®
backer and cast aluminum
basket, sealed back chamber
format. Concave dust cap.
Passive Radiators Three 6.5-inch (16.5 cm)
unidirectional black carbon fiber
cone with Nomex
®
backer and cast
aluminum basket, sealed back
chamber format. Concave dust cap.
Binding Post Inputs Push style (two sets for
easy installation)
Components Custom air core coil inductors,
polypropylene film capacitors,
and low DF electrolytic capacitors.
Thermal/current protection.
Suitable Amplifier Range 20–300 watts
Max Power Handling 150 watts
Weight 44.5 lb (20.2 kg)
Overall Size
(height x width x depth)
46.86 x 10.6 x 4.11 inch
(1190.2 x 269.2 x 104.3 mm)
Required Opening
(including tolerance)
45.57 x 9.29 inch
(1157 x 236 mm)
Projection From
the Wall Surface
0.31 inch
(7.8 mm)
Depth Required Behind
the Wall Surface
3.8 inch
(96.5 mm)
Optional Accessories Pre-install bracket (PN: 7XWBRK)
State-of-the-art Truth in Sound—from extreme home theater to transcendent
two-channel listening, the Masterpiece™ CI Series oers the biggest, boldest,
and most lifelike performance possible. A tribute to the acoustic achievements
of MartinLogan’s original iconic masterpiece, our electrostatic speakers.
™