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Reference Series Model 103 (1976-77)
Model 103 was the second speaker to appear in the Reference Series. An 8 inch two way closed box design, it used the same low distortion B200 bass driver as the Model 104 with the new T52 tweeter (developed from the original T15).
A novel feature of this system was the rotatable steel baffle which could be turned through 360 degrees to present the drive units vertically aligned regardless of the orientation of the cabinet, thus ensuring the broad horizontal dispersion necessary for optimum stereo imaging and minimal tonal variation.
Critical to the low colouration levels of this system was the substantially built cabinet, with critical bracing elements and bituminous panels laminated onto the walls.
Specification: Model 103
System type: Two-way, bookshelf/stand-mount
Enclosure type: Closed box
Size: 500 x 303 x 225cm (19.7 x 13 x 8.9 inches)
Weight: 14.5 kg (32 lb)
Input Impedance: 8 ohms
Rated maximum power: 100W programme
Amplifier Requirements: 25-100 watts per channel into 8 ohms
System resonance: 58Hz, Q=0.9
Frequency response: 50-20,000Hz +/-2dB
Sensitivity: 25 watts for 96dB at 1m and 400Hz in anechoic conditions
Crossover Frequency: 3000Hz
Finishes:  Walnut, Teak
Grille: black foam
System: SP1048
Drive units: B200 bass unit (SP1039), T52 tweeter (SP1049)
Crossover: SP1050