- Early 1990s History
- Early 1990s Home
- + Coda
- + Q Series
- + Reference Series
- Home Theatre
- + K Series
- Model 100
- Model 103.4
- Model 70S
- Kube 200
- ^ Museum Home
Reference Model Four
The serious audiophile's ultimate loudspeaker. Epitomising KEF's leadership in loudspeaker design and technology, Model Four is built without compromise to deliver a stable, clean and uncannily natural sound. To the listener, the combined effect of six drive units with a full 4-way crossover is nothing less than awesome.
- Twin 250mm (10") coupled cavity long-throw bass drivers
- Twin decoupled 160mm (61/2") lower mid-range drivers
- Fourth generation 160mm (61/2") Uni-Q® mid-range/HF driver
- 25mm (1") fabric dome Ferrofluid-cooled tweeter
- Computer matched high order 4-way crossover circuit
- Full magnetic shielding for A/V compatibility
- Gold plated bi-wire input terminals
Reference Model Four Specifications
| Cabinet Design | 4-way, 6-driver dual coupled cavity |
| Crossover frequencies | 160Hz, 500Hz, 2.8kHz |
| Frequency Range +/ 3dB | 35Hz - 20kHz |
| Sensitivity - 2.83v @ 1m | 92dB |
| Maximum output - typical in room | 118dB |
| Amplifier requirements | 50-400W |
| Impedance | 4 ohms |
| Weight | 49kg (108lbs) |
| Dimensions (H x W x D) |
1266 x 300 x 390mm 47.8 x 11.8 x 15.3in. |
| Finishes | rosewood/black ash/rosetta burr |