Variable low-pass filter: 40 Hz - 140 Hz, fourth order
Small signal input: RCA phono jacks
Internal volume: 23.2 liters
Power Supply: 100 - 240V ac ~ 50/60Hz
Power Consumption: 200VA
Impedance: 8 643961b8da111c0a15d770a1109a86d4
Q100
Q300
Q500
Q700
Q900
Q200c
Q600c
Q800ds
www.hifitest.de (12/2011): “It is a joy to experience how Kefs Q400b works in the fundamental range. Despite the small size of the cabinet its performance in the "deep bass cellar" is amazing. The Q400b also convinces with reasonable features and excellent manufacturing."