Reasons to choose MartinLogan Foundation C1 over MartinLogan Foundation B1
Max Input Power 150 watts vs 100 watts
Sensitivity 91 dB vs 89 dB
Number of Woofers 2 vs 1
Height 194mm vs 347mm
Price per pair* 499USD vs 599USD

Reasons to choose MartinLogan Foundation B1 over MartinLogan Foundation C1

Nominal Impedance 5 ohms vs 4 ohms
Low Frequency Response 48 Hz vs 53 Hz
Base Surface Area 447cm2 vs 1290cm2
MartinLogan Foundation C1 vs MartinLogan Foundation B1 Specs Table
General MartinLogan Foundation C1 MartinLogan Foundation B1
Brand MartinLogan MartinLogan
Speaker Type Center channel speaker Bookshelf speakers
Power Range up to 150 watts up to 100 watts
Sensitivity 91 dB 89 dB
Impedance 4 ohms 5 ohms
Frequency Response 53-23k Hz 48-23k Hz
Drivers
Woofer Quantity 2 1
Woofer Size 5-1/2" 5-1/2"
Woofer Composition Aluminum Aluminum
Tweeter Size 1" 1"
Tweeter Type Folded Motion Ribbon Folded Motion Ribbon
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2900 Hz - 3200 Hz 3400Hz
Firing Direction rear rear
Physical Specs
Height 194.0mm (7.6") 347.0mm (13.7")
Width 508.0mm (20") 185.0mm (7.3")
Depth 254.0mm (10") 242.0mm (9.5")
Weight 8.18kg (18lbs) 5.23kg (11.5lbs)
Enclosure Bass Reflex Bass Reflex
Available Colors Walnut,Black,Satin White Walnut,Black,Satin White
Mounting Bracket
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty 5 years 5 years
Labor Warranty 5 years 5 years