KEF Concerto
* Released in 1969
Price unknown (1 unit, around 1974)
Commentary
3-way speaker system.
The low range is equipped with a B139 which is an elliptical planar woofer unit, the middle range is equipped with a cone mid-range B110, and the high range is equipped with a dome tweeter T27.
The enclosure uses a bass reflex system.
.jpg)
Model Rating
| Method | 3-Way, 3-Speaker, Bass reflex system, Bookshelf Type |
| Units Used | For Low Range : Flat Type (B139) For Middle Area : Cone Type (B110) For High Range : Dome Type (T27) |
| Frequency range | 25 Hz to 40 kHz |
| Frequency response (rated) | 35 Hz to 30 kHz ± 3 dB (anechoic room, 1m on the tweeter axis) |
| System resonant frequency | 35 Hz (bass reflex system) |
| Maximum allowable input | 50W(music) |
| Impedance | 8 Ω |
| Sensitivity | 96 dB (input 9.5W, 8 Ω, anechoic room, 1m point) |
| Crossover frequency | 400 Hz, 3.5 kHz |
| Adaptive input | 15 ~ 50W (8 Ω Load) |
| Applicable Room Size | 280m3Less than or |
| Internal volume | 62 liters |
| External dimensions | Width 432x Height 711x Depth 305 mm |
| Weight | 25.4kg |
.jpg)