Altitudo Audio
KEF R400b Subwoofer (Pre-Owned)
Regular price
$850.00
*Pre-owned
R400b is a twin 9-inch driver "force-cancelling" subwoofer in the R Series range, by KEF Audio.
Only 14 inches high, but with twin bass drivers and a solid 500W of power amplification, R400b is perfectly made for serious home theatre systems.
Specifications
Weight
21.5kg (47.4lbs)
Dimension (H X W X D)
365 x 330 x 351 mm (14.4 x 13 x 13.8 in.) with terminal & plinth
Design
Powered Subwoofer (Sealed)
Unit Measurement
Piece
Frequency Range
26Hz - 140Hz (-6dB)
Power Consumption
600VA
Power Requirements
100V - 120V / 220V - 240V
~ 50 / 60Hz
~ 50 / 60Hz
Low Level Signal Inputs
RCA phono sockets
Speaker level inputs
Maximum Output
111dB
Recommended Amplifier Power
2 x 250W (500W) built-in Class-D
Variable Low Pass Filter
40Hz - 140Hz, 4th-order
Drive Units
Bass units:
LF: 2 x 225mm (9in.)
LF: 2 x 225mm (9in.)
Crossover Frequencies
400Hz, 2.9kHz