Reference Series Model 107/2 (1990-95)

This innovative model provided quite outstanding performance with an unusually high degree of user convenience. This was achieved by combining many of the tried and tested Reference Series features with a new concept in active low-level equalisation, KUBE (KEF Universal Bass Equaliser). The result was a unique combination bass extension down to a genuine 20Hz, and good sensitivity, from a surprisingly compact system which is sonically flexible enough to be tailored to its specific surroundings.
 
Model 107 combined the separate mid/treble enclosure from the 105/2 with the coupled cavity bass loading technique developed for the 104/2 and established itself as one of the world’s finest loudspeakers. The midrange driver was a new polypropylene-coned B110 allowing higher sensitivity with improved strength and durability. As with the 102 and 103/3 the KUBE was an integral part of this system and essential in obtaining its specified performance.
 
The updates incorporated into the 107/2 included a new aluminium dome tweeter, a revised midrange/tweeter enclosure assembly and refinements to the equalisation applied in the KUBE. The 107/2 was included into the Raymond Cooke Series along with the Reference Series Models LS3/5A and 104/2.
 
Specification: Model 107/2
System Type: Three-way, floor standing
Enclosure type: Coupled cavity
Size: 1165 x 330 x 448mm (45.9 x 13 x 17.6 inches)
Weight: 45kg (99 lb)
Nominal Impedance: 4ohms resistive (20Hz -20kHz)
Rated maximum power: 300W programme (into 4 ohms)
Frequency response: 20Hz to 20kHz +/-2dB at 2m on reference axis
Sensitivity: 90dB at 1m on reference axis for a pink noise input of 2.83V (anechoic conditions)
Maximum output: 112dB on programme peaks under typical listening conditions
System: SP3119
Drive units: 2 x B250 bass unit (SP1215)
Crossover: SP2165 and 2166