TFM-450
Architects' and Engineers' Specifications
The loudspeaker shall be of the bi-amped, two-way type consisting of
one 381mm (15") low-frequency loudspeaker and one 50mm (2") high
frequency compression unit. 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 90Hz to 16kHz. Dispersion at -6dB points shall average
40 degrees horizontal x 60 degrees vertical. Nominal impedance shall
be LF: 8 ohms, HF: 8 ohms. Power handling shall be LF: 400 watts rms,
800 watts program, 1000 watts peak; HF: 100 watts r.m.s., 200 watts
program, 250 watts peak. Sensitivity measured with 1 watt input at 1
metre distance on-axis, mean averaged over stated bandwidth, shall be
LF: 99dB; HF: 103dB. Maximum SPL (peak), measured with music program
at stated amplifier power, shall be 136dB. Dimensions: 401mmH x
711mmW x 475mmD (15.8"H x 28"W x 18.7"D) Weight: 32 kg (70.4lbs) The
loudspeaker shall be the Turbosound TFM-450. 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.
