Reasons to choose Klipsch Reference Premiere RP-450C over Klipsch Reference Premiere RP-400M
Max Input Power 150 watts vs 50 watts
Sensitivity 97 dB vs 93 dB
Woofer Size 5.25 inches vs 4 inches
Number of Woofers 4 vs 1
Height 174mm vs 298mm

Reasons to choose Klipsch Reference Premiere RP-400M over Klipsch Reference Premiere RP-450C

Low Frequency Response 52 Hz vs 58 Hz
Mounting Bracket Yes vs No
Base Surface Area 275cm2 vs 2926cm2
Price per pair* 399USD vs 650USD
Klipsch RP-450C vs Klipsch RP-400M Specs Table
General Klipsch Reference Premiere RP-450C Klipsch Reference Premiere RP-400M
Brand Klipsch Klipsch
Speaker Type Center channel speaker (Ebony) Bookshelf speakers
Power Range up to 150 watts up to 50 watts
Sensitivity 97 dB 93 dB
Impedance 8 ohms 8 ohms
Frequency Response 58-25k Hz 52-25k Hz
Drivers
Woofer Quantity 4 1
Woofer Size 5.25" 4"
Woofer Composition Cerametallic cone Cerametallic
Woofer Surround Material Rubber Rubber
Tweeter Size 1" 1"
Tweeter Type Tractrix horn Tractrix Horn
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency n/a 1500Hz
Firing Direction rear rear
Physical Specs
Height 174.0mm (6.9") 298.0mm (11.7")
Width 791.0mm (31.1") 144.0mm (5.7")
Depth 370.0mm (14.6") 191.0mm (7.5")
Weight 16.23kg (35.7lbs) 4.10kg (9lbs)
Enclosure Bass Reflex Bass Reflex
Finish polymer veneer MDF/Wood-grain vinyl
Available Colors Walnut, Black Ebony, Walnut, Piano Black
Mounting Bracket No Keyhole
Recommended Stand Height n/a 28-30"
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs n/a No
Other
Parts Warranty 5 Years 5 Years
Labor Warranty 5 Years 5 Years