TA-890H Architect's and Engineer's Specifications
The loudspeaker system shall be of the
tri-amped, three way active type, consisting of two 10" low-mid
frequency drivers loaded with TurboMid devices, one 10"
high-mid driver on an HMF Polyhorn, and two HF drivers on an HF
Polyhorn. 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 95Hz
- 20kHz. Nominal impedance shall be: LMF: 8 ohms, HMF: 16 ohms, HF:
12 ohms. Power handling shall be LMF: 500 watts r.m.s., 1000 watts
program; HMF: 200 watts r.m.s., 400 watts program; HF: 100 watts
r.m.s., 200 watts program. Sensitivity, measured with 1 watt input at
1 metre distance on axis, mean averaged over stated bandwidth, shall
be LMF: 107dB, HMF: 114dB, HF: 114dB. Maximum SPL (peak), measured
with music program input at stated amplifier power shall be 146dB.
Dimensions: 795mmH x 477mmW x 574D (31.3" x 18.8" x 22.6"). Weight:
76 kg (167 lbs). The loudspeaker system shall be the Turbosound
TA-890H. No other loudspeaker system shall be acceptable unless
submitted data from an independent test laboratory verify that the
above combined performance/size specifications are equalled or
exceeded.