Characteristics 2.1technical terms, Description, Speaker – BeStar BLS87-2-45H33.4 LF User Manual
Page 2: Speaker mic audio analyser power amplifier, 1w (6 .7 v rm s), Anechoic chamber, 2 test method
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Date:
Page:02 of 07
DRG NO:BS/TES01.1102A
张秀琴
Drawn
Rev.
Date
Note
王 平
2011/09/17
汪凤声
BLS87-2-45H33.4 LF
A
2011/09/17
汪凤声
博 士 達
BLS87-2-45H33.4 LF
2.Characteristics
2.1Technical Terms
No. Item Specifications
1. Size
Ø87x33.4mm
2. Impedance at 1KHz 45
±6
Ω
3. Resonance frequency 400
±40Hz
4. Operating frequency range fo...7K Hz
5. Rated input power 10W
6. Maximum input power 12W
7. Buzz & Rattle(at sine wave6.7V) must be normal
8. SPL(1W/1M/92
± 3dB) (at 0.8
、
1.0
、
1.2
、
1.5KHz average)
9. Polarity Positive voltage to (+),
the diaphragm move forward
10. Magnet material Ferrite
11. Operating temperature - 10...+65
°C
12. Weight 128g
Speaker
Speaker
Mic
Audio
Analyser
Power Amplifier
1m
1
W
(6
.7
V
rm
s)
2.2 Test Method
Anechoic chamber
1.Description
1.1 Acoustic component Performance Specification
1.2 The present document specifies performance requirements
for the acoustic characteristics of speaker