Model 104
The advanced research and quality of performance make the Model 104 loudspeaker a reference in its own right.
The reference series Model 104 is a three-way speaker system employing synthetic, laminated diaphragms for all three units. A 320 x 210 mm bass radiator is acoustically coupled to a 200 mm driver at frequencies below 45 Hz. The combination gives clean bass down to 30 Hz with higher efficiency than would be possible using a single large diaphragm with the same motor assembly.
Model 104 Specifications
| Harmonic Distortion | <1% THD 100-30,000 Hz rel 96dB SPL at 400 Hz |
| Dividing Frequencies | 45 Hz (acoustically coupled) 3,000 Hz (electrical cut-off slope 18dB/8ve |
| Rated Max. Power | 50 watts programme |
| Continuous Sine | 20v (50w) 100-2,500 Hz |
| Amplifier Requirements | 15 to 50 watts into 8 ohms |
| Wave Rating | reducing to 8v (8w) above 3kHz |
| Nominal Freq. Range | 30-40,000 Hz |
| Nominal Impedance | 8 ohms |
| Specific Freq. Response | +/-2dB 50-20,000 Hz +/-5dB 35-35,000 Hz -10dB at 30 Hz |
| System Resonance | Mechanical reflex 35 Hz |
| Sensitivity | 12.5 watts into nominal 8 ohms produces 96dB at one metre and 400 Hz in anechoic conditions |
| Weight | 15.8 kg (34.75 lb) net 21.0 kg (46.2 lb) packed |
| Internal Volume | 35.5 litres |
| Room Size | Up to 280 cubic metres (10,000 cu ft) |
| Finishes | Walnut, teak, white |
| Dimensions | 630 x 330 x 260 mm 24.8 x 13 x 10.23 in |
| Acoustic Contour Control | 3 positions +/-2dB centred on 1.5 kHz |
| Grille | Black Microcellular Foam |