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Description
5.25″speaker
size
134 mm
no.
item
specification
test condition
1.
Voice coil impedance
7.2+10%
at (20℃) 350hz 1v
2.
Voice coil size material
25.5 mm
material:asv
3.
Cone edge
paper cone rubber edge
4.
Operation
must be normal
at 83 hz rated power
5.
Sweep test
must be normal
at rated freq .range 10vrms sine wave
6.
Resonant freq (fo)
55hz + 20%hz
without baffle
7.
Output s.p.l.
84+3db
mean value
at 1w 1m measurement
8.
Freq response
55 hz~ 9khz
84 -10db max (1m 1w)
9.
Rated power input
25 watts
at 14 vrms12hrs pink noise
10.
Max power input
50 watts at 20 vrms, pink noise
(on 1min off 2min 10 cycle)
11.
Load test
after test meet item 4 & 5
pink noise 25w in 12 hours
12.
Heat test
after test meet item 4 & 5
60℃+2℃ 20-25% rh. 8 hours
13.
Humidity test
after test meet item 4 & 5
40℃+2℃ 90-95% rh. 8 hours
14.
Cold test
after test meet item 4 & 5
-20℃+2℃ rh. 8 hours