Speaker Driver Specifications; Membrane Area; Efficiency; T/S Parameter Target - Philips NTX800 Service Manual

Reference: WX-B-009-01
Model : NTX800
Electrical frequency response requirement in flat mode
6.4

Speaker Driver Specifications

Supplier Model Number:
No. Item
Size and numbers
of speaker driver

Membrane area

Rated
IMPEDANCE
Long term noise
POWER

EFFICIENCY

T/S parameter
target
FREQUENCY
RESPONSE at 0
degree in baffle
FREQUENCY
RESPONSE at 30
degrees in baffle
FREQUENCY
RESPONSE at 60
degrees in baffle
FREQUENCY
RESPONSE at 0
degree in free air
Confidential
Title: Product Performance Specification
Woofer
8" x 2
Piston area >
8ohms
500W, unfiltered
≥ 89 dB/1W/1m
See driver spec
See driver spec
n/a
n/a
See driver spec
Page 20 of 25
Measurement
Mid-high range conditions:
IEC 60268-5
4" coaxial mid-high
driver x 2
8ohms
RMS, 100 hours
500W, with filter pink noise IEC
filtered.
In IEC baffle in
anechoic chamber,
≥ 89 dB/1W/1m average level on
pink noise in used
frequency range
n/a N/A
On IEC baffle, 1/3
See driver spec octave smoothing, in
anechoic chamber
On IEC baffle, 1/3
n/a octave smoothing, in
anechoic chamber
On IEC baffle, 1/3
n/a octave smoothing, in
anechoic chamber
In free air, 1/3
See driver spec octave smoothing, in
anechoic chamber