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.
™
• 40x drivers
®
• 16x tweeters: Folded Motion
XT Obsidian
• 16x mid: 3.5-inch • 8x bass: 6.5-inch
• Unidirectional carbon ber multi-section
®
cones with Nomex
backers
• Line source conguration with controlled
dispersion sound radiation
• Vojtko™ crossover network constructed
from audiophile-grade components
• Phenolic bae • Sealed back box • Surface mount grille
SPECIFICATIONS
Frequency Response 48–25,000 Hz ± 3 dB
Tweeter Dispersion
(horizontal x vertical)
Sensitivity 95 dB @ 2.83 volts/ meter
Impedance 4 ohms. Compatible with
Crossover Frequencies 300, 2700 Hz
High-Frequency Drivers Sixteen 1.25 x 2.4 inch (3.2x6.1cm)
Mid-Frequency Drivers Sixteen 3.5-inch (8.9 cm) black
multi-section cone with Nomex
Low-Frequency Drivers Eight 6.5-inch (16.5 cm) black
multi-section cone with Nomex
Binding Post Inputs Push st yle (two sets for
Components Custom air core coil inductors,
polypropylene film capacitors, and
Suitable Amplifier Range 50–800 watts
Max Power Handling 400 watts
Weight 150 lb (68.1 kg)
Required Wall Cavity
(width)
Required Wall Cavity
(height, unobstructed)
Required Wall Cavity
(depth)
Enclosure (width
x height x depth,
excludes padding)
Grille (height x width) 11.5 x 59.5 inch (292x1511mm)
Installation Kit
(included)
1/2-inch drywall (PN: 40XWIWK05)
5/8-inch dr ywall (PN: 40XWIWK0625)
80° x 52-inch line source
4, 6, or 8 ohm rated amps.
Folded Motion XT Obsidian
transducer with 4.5 x 2.75 inch
(11.4 x 7 cm) diaphragm.
unidirectional carbon fiber
backer and cast aluminum
basket, sealed back chamber
format. Concave dust cap.
unidirectional carbon fiber
backer and cast aluminum
basket, sealed back chamber
format. Concave dust cap.
easy installation)
low DF electrolytic capacitors.
Minimum: 14.5 inch (368 mm)
Maximum: 16.5 inch (420 mm)
Minimum: 89 inch (2260 mm)
Minimum: 3.5 inch (89 mm)
14.3 x 84.2 x 3.4 inch
(361x2137x86 mm)
Choose appropriate size
®
®
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.
™
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)
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-sec tion cone
with Nomex
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
aluminum basket, sealed back
chamber format. Concave dust cap.
Binding Post Inputs Push st yle (two sets for
Components Custom air core coil inductors,
polypropylene film capacitors,
and low DF electroly tic capacitors.
Thermal/current protection.
Suitable Amplifier Range 20–300 watts
Max Power Handling 150 wa t ts
Weight 44.5 lb (20.2 kg)
Overall Size
(height x width x depth)
Required Opening
(including tolerance)
Projection From
the Wall Surface
Depth Required Behind
the Wall Surface
Optional Accessories Pre-install bracket (PN: 7X WBRK)
®
®
46.86 x 10.6 x 4.11 inch
(1190.2 x 269.2 x 104.3 mm)
80° x 30°
backer and cast
backer and cast
easy installation)
45.57 x 9.29 inch
(1157 x 236 mm)
0.31 inch
(7.8 mm)
3.8 inch
(96.5 mm)
®
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.
™
• 5x drivers
• 1x tweeter: Folded Motion® XT Obsidian
• 2x mid/bass: 5.25-inch
• 2x 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 71–25,000 Hz ± 3 dB
Tweeter Dispersion
(horizontal x vertical)
Sensitivity 94 dB @ 2.83 volts/ meter
Impedance 4 ohms. Compatible with
4, 6, or 8 ohm rated amps.
Crossover Frequency 2250 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.
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. Concave dust cap.
Passive Radiators 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.
Binding Post Inputs Push st yle (two sets for
Components Custom air core coil inductors,
polypropylene film capacitors,
and low DF electroly tic capacitors.
Thermal/current protection.
Suitable Amplifier Range 20–250 watts
Max Power Handling 125 wat t s
Weight 25.5 lb (11.6 kg)
Overall Size
(height x width x depth)
Required Opening
(including tolerance)
Projection From
the Wall Surface
Depth Required Behind
the Wall Surface
Optional Accessories Pre-install bracket (PN: 5X WBRK)
31.13 x 10.6 x 4.09 inch
(790.82 x 269.2 x 103.93 mm)
80° x 30°
easy installation)
29.82 x 9.29 inch
(757 x 236 mm)
0.31 inch
(7.8 mm)
3.8 inch
(96.5 mm)
®
®
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.
™
Frequency Response 78–25,000 Hz ± 3 dB
Tweeter Dispersion
(horizontal x vertical)
Sensitivity 94 dB @ 2.83 volts/ meter
Impedance 4 ohms. Compatible with
Crossover Frequency 2400 Hz
Tweeter Aiming Rotatable tweeter for horizontal
High-Frequency Driver 1.25 x 2.4 inch (3.2 x 6.1 cm)
Low-Frequency Drivers Two 5.25-inch (13.33 cm) black
SPECIFICATIONS
4, 6, or 8 ohm rated amps.
or vertical installations
Folded Motion XT Obsidian
transducer with 4.5 x 2.75 inch
(11.4 x 7 cm) diaphragm.
unidirectional carbon fiber
multi-section cone with Nomex
backer and cast aluminum
basket, sealed back chamber
format. Concave dust cap.
80° x 30°
®
• 3x drivers
• 1x tweeter: Folded Motion
®
XT Obsidian
• 2x mid/bass: 5.5-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)
Binding Post Inputs Push style
Components Custom air core coil inductors,
polypropylene film capacitors,
and low DF electroly tic capacitors.
Thermal/current protection.
Suitable Amplifier Range 20–250 watts
Max Power Handling 125 wat t s
Weight 15.5 lb (7 kg)
Overall Size
(height x width x depth)
Required Opening
(including tolerance)
Projection From
the Wall Surface
Depth Required Behind
the Wall Surface
Optional Accessories Pre-install bracket (PN: 3X WBRK)
15.98 x 9.94 x 4.11 inch
(405.95 x 252.6 x 104.3 mm)
14.66 x 8.64 inch
(372 x 219 mm)
0.31 inch
(7.8 mm)
3.8 inch
(96.5 mm)
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.
™
• 4x drivers
®
• 1x tweeter: Folded Motion
XT Obsidian
• 2x mid: 3.5-inch
• 1x bass: 8-inch
• Unidirectional carbon ber multi-section
®
cones with Nomex
backers
• Vojtko™ crossover network constructed
from audiophile-grade components
• Sealed back box
• Die-cast aluminum mounting-lock system
• Pre-install brackets (sold separately)
• Square grille (sold separately)
SPECIFICATIONS
Frequency Response 63–25,000 Hz ± 3 dB
Tweeter Dispersion
(horizontal x vertical)
Sensitivity 92 dB @ 2.83 volts/ meter
Impedance 4 ohms. Compatible with
4, 6, or 8 ohm rated amps.
Crossover Frequencies 400, 2250 Hz
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 Drivers Two 3.5-inch (8.9 cm) black
unidirectional carbon fiber
multi-section cone with Nomex
backer and cast aluminum
basket, sealed back chamber
format. Concave dust cap.
Low-Frequency Driver 8-inch (20.3 cm) black unidirectional
carbon fiber multi-sec tion cone
with Nomex
aluminum basket, sealed back
chamber format. Concave dust cap.
Controls Tweeter Level (dB): +2, –2, 0
Position: FrontR/RearL, FrontL /
RearR, For center choose either
Binding Post Inputs Push style
Components Custom air core coil inductors,
polypropylene film capacitors,
and low DF electroly tic capacitors.
Thermal/current protection.
Suitable Amplifier Range 20 –300 watts
Max Power Handling 150 wa t t s
Weight 13.5 lb (6.1 kg)
Overall Size
(diameter x depth)
Required Opening
(including tolerance)
Projection From
the Wall Surface
Depth Required Behind
the Wall Surface
Optional Accessories Pre-install bracket (PN: C8HTBRK)
Square grille (PN: C8HTSQ)
®
30° x 80°
backer and cast
12.8 x 7.5 inch
(325 x 190 mm)
11. 4 6 inch
(291 mm)
0.26 inch
(6.6 mm)
7.2 inch
(184 mm)
®
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