Model C4 Colour Black  Power 400 W
Speaker 4x5 830Hz-15KHz
Dimensions 14.2 x 12.4 x 13.4 inch
360 x 320 x 340 mm
(W x D x H)
Weight 29lbs / 13.1 kg PJB's huge emphasis on research and development ensures that no other cabinets sound like a PJB cabinet. 

Phil Jones Bass cabinets are precisely tuned using multiple loudspeaker analysis programs to reduce cone movement at the lowest frequencies, and to increase low frequency output. PJB employs a full size anechoic chamber for acoustic measurements and a laser scanning Doppler interferometer to analyse cone movement in 3D across the whole audio spectrum.