TSB-212 Architects' and Engineers' Specifications
The system shall be of the bandpass type consisting of two 12" (305mm) high excursion low frequency drivers. Performance specifications of a typical production unit shall meet or exceed the following: Frequency response, measured with swept sine wave input, shall be flat within ±4dB from 38Hz to 200Hz. Nominal impedance shall be 4 ohms. Power handling shall be 800 watts r.m.s., 1600 watts program. Sensitivity, measured with 1 watt input at 1 metre distance on axis, mean averaged over stated bandwidth, shall be 100dB. Maximum SPL (peak) measured with music program at stated amplifier input shall be 138dB. Dimensions: 420mmH x 1000mmW x 470mmD (16.5"H x 39.4"W x 18.5"D). The loudspeaker system shall be the Turbosound TSB-212. No other loudspeaker shall be acceptable unless submitted data from an independent test laboratory verify that the above combined performance / size specifications are equalled or exceeded.