BeStar BLS87-12-45H30 LF - Manual (Page 2)

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Checked by:
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
BLS87-12-45H30 LF
A 2011/09/17 汪凤声
博 士 達
BLS87-12-45H30 LF
2.Characteristics
2.1Technical Terms
No. Item Specifications
1. Size Ø87x33.4mm
2. Impedance at 1KHz 45 ±6 Ω
3. Resonance frequency 450
±90z
4. Operating frequency range fo...1.2KHz
5. Rated input power 12W
6. Maximum input power 24W
7. Buzz & Rattle(at sine wave6.7V) must be normal
8. SPL 86 ± 3dB at 1m/1W/1KHz
9. Polarity Positive voltage to (+),
the diaphragm move forward
10. Magnet material NdFeB
11. Operating temperature -25...+5 5
°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