Model 107
The KEF Reference Series Model 107 is a remarkable loudspeaker.
This innovative model provides quite outstanding performance with an unusually high degree of user convenience. This has been 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 is a unique combination of bass extension down to a genuine 20Hz, and a good sensitivity, from a surprisingly compact system which is sonically flexible enough to be 'tailored' to its specific surroundings.
At the heart of this new model is a re-examination of the role of the dividing network, using a hybrid technique which overcomes the hitherto immutable relationship between box size, bass extension and efficiency.
Model 107 Specifications
| Frequency Response | 20Hz - 20kHz +/- 2dB at 2m on reference axis |
| Directional Characteristics | Within 2dB of response on reference axis up to 15kHz for +/-10° vertically, up to 10kHz for +/-30° horizontally |
| Maximum Output | 112dB spl on programme peaks under typical listening conditions |
| Enclosure Volumes | Low frequency enclosure: 72 litres. MF/HF enclosure: 8.5 litres |
| Amplifier Requirements | Suitable for use with amplifiers capable of providing between 50 and 300W into 4 ohms resistive load. |
| Nominal Impedance | 4 ohms resistive 20Hz-20kHz |
| Characteristic Sensitivity Level | 90dB spl at 1m on reference axis for pink noise input of 2.83 V rms, band limited 50-20kHz (anechoic conditions) |
| Weight | 45 kg (99 lb) |
| Dimensions | 1165 x 330 x 448 mm 45.9" x 13" x 17.6" |
| Height of Origin of Reference Axis | 1020mm (40") above base of cabinet (not including feet). |
| Angle of Reference | = 1.5° from horizontal |