Specification: Model 103/4
System Type: Three-way, floor standing
Enclosure type: Coupled cavity
Dimensions (H x W x D): 900 x 215 x 305mm (35.5 x 8.5 x 12 inches)
Weight: 18.1kg (40 lb)
Nominal impedance: 4ohms
Amplifier requirements: 50-200W (into 4 ohms)
Frequency range: 50Hz to 20kHz +/-2.5dB at 2m on reference axis (-6dB at 38Hz)
Sensitivity: 91dB at 1m on reference axis for a pink noise input of 2.83V (anechoic conditions)
Maximum output: 112dB on programme peaks under typical listening conditions
System: SP3131
Drive units: 2 x B160 bass unit (SP1275), B160 midrange unit (SP1278), NT25 tweeter (SP1353)
Crossover: SP2175
System: SP3166 (magnetically shielded)
Drive units: 2 x B160 bass unit (SP1311), B160 midrange unit (SP1314), NT25 tweeter (SP1353)