TA-500H Architect's and Engineer's Specifications
The loudspeaker system shall be of the switchable bi-amped/tri-amped
type, consisting of one high frequency driver on a patented Polyhorn,
one 10" (254mm) mid frequency driver loaded with a patented Polyhorn™, and one
15" (381mm) low frequency driver loaded with a TurboBass device in a horizontal
format enclosure. 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 60Hz - 20kHz (with DSP). Nominal dispersion,
at -6dB points, shall average 50° horizontal x 25° vertical. Nominal
impedance shall be: LF: 8 ohms, MF: 16 ohms, HF: 16 ohms. Power handling shall
be LF: 400 watts r.m.s., 800 watts program; MF: 200 watts r.m.s., 400 watts
program; HF: 50 watts r.m.s., 100 watts program. Sensitivity, measured with
1 watt input at 1 metre distance on axis, mean averaged over stated bandwidth,
shall be LF: 106dB, MF: 105dB, HF: 112dB. Maximum SPL (peak), measured with
music program input at stated amplifier power shall be 141dB. Dimensions: 551mmH
x 983mmW x 498mmD (21.7" x 38.7" x 19.6"). Weight: 52kg (114.4lbs). The
loudspeaker system shall be the Turbosound TA-500H. 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.