ESC
Reference Series Model 103/3

Reference Series Model 103/3

ManufacturerKef
FunctionSpeaker
Produced1986-1993
CountryUK
Form FactorBookshelf / Stand Mounted
Signal PathPassive Hardware
Dimensions575 x 265 x 317 mm (22.6 x 10.4 x 12.5 inches)
Weight17kg (37.5 lb)
Frequency Response50Hz to 20kHz +/-2dB at 2m on reference axis (-6dB at 35Hz, Q=0.5)
System TypeThree-way, stand-mount
Enclosure typeCoupled cavity
Nominal Impedance4ohms resistive (20Hz-20kHz)
Rated maximum power200W programme (into 4 ohms)
Sensitivity92dB at 1m on reference axis for a pink noise input of 2.83V (anechoic conditions)
Maximum output110dB on programme peaks under typical listening conditions
LinksKEF museum
NotesImproving on the redoubtable Model 103.2 was no easy task, for this compact and refined two-way loudspeaker, much admired for its accuracy, ruggedness and consistency, had enjoyed great popularity among domestic and professional users for many years. But technology and techniques advance steadily, and the 103-sized performance package had been considerably improved. Model 103/3 was a three-way system incorporating KEF’s unique coupled cavity bass loading method, and its own version of the KEF KUBE low-level equaliser. The combination of these two design elements provides unusually extended low frequency response and exceptional power handling.