2403-260-00091 Datasheet, PDF (11/20 Pages) Knowles Electronics – SPEAKER-1115-3.5-SC-COBRA

2403 260 00091
3.2. Electro-Acoustic Parameters
Loudspeaker mounted in adapter acc. to 3.6 in setup acc. to 3.5.
1. Rated impedance
Z:
6Ω
2. Voice coil DC resistance
R:
5,4Ω±10%
3. Resonance frequency (measured @1ccm, 700mW)
f₀:
850Hz±7,5%
3.1 Typical resonance frequency (measured @open back, 0,5V) f₀:
500Hz
4. Maximum usable excursion
xmax p-p:
0.74mm p-p
5. Measured characteristic sensitivity
(measured at 1W in 1cm, calculated to 1m
average from 2kHz to 6kHz, thermal compression included)
74±2dB
5.1. Measured characteristic sensitivity (at 1V in 10cm)
average from 2kHz to 6kHz
87,2±2dB
6. THD
according chapter 3.1.
7. Rub & buzz
no audible R&B at max sine power
All acoustic measurements at 23±2°C
3.3. Power Handling
Speaker mounted in 1ccm test device (open front)
1. Max sine power
f≥1kHz
1000mW
f<1kHz
700mW
(at 1ccm if no extra damping is provided)
2. Max short term power
(70°, 1sec. ON / 60sec. OFF)
(pink noise, 2^nd order high pass filtered, -3dB at 1.2kHz, crest factor 2)
1200mW (RMS)
3. Max continuous power
(70°, 500h)
1000mW (RMS)
(white noise, 2^nd order high pass filtered, -3dB at 100Hz, 2^nd order low pass filtered, -3dB at 8kHz, crest factor 2)
Release – Revision: C
Page 11 of 20
©2011 Knowles Electronics