扬声器规格书(SPEAKER SPECIFICATIONS)

扬声器规格书(SPEAKER SPECIFICATIONS) PRODUCT NO. TSB28E-8A(LEAD FREE)

（产品型号）

TEST IN HIGH TEMP

耐温试验

After having been in a test chamber for 3 days at the

condiTIon of +70℃, and then left 2hours in a room.

SensiTIvity Change within 3dB relaTIve to initial value,

Fo/Impedance change within 10% relative to initial value.

TEST IN LOW TEMP

耐寒试验

After having been in a test chamber for 3 days at the

condition of -40℃±3℃and then left 2hours in a room.

Sensitivity Change within 3dB relative to initial value,

Fo/Impedance change within 10% relative to initial value.

STATIC TEST

耐湿试验

After having been in a test chamber for 60hours at the

condition of +60℃ 90%~95%R.H.and then left 4hours in a

room. Sensitivity Change within 3dB relative to initial

value, Fo/Impedance change within 10% relative to initial

value.

LOAD TEST

连续实验

At 0.3W white noise is applied for 96hours and then should

satisfy the test described under item 01and 07.

DROP TEST

落下试验

Dropping to concrete floor from 1.60 m height, in the state

of packing，Directions: 1corner, 3 edges, 6 planes.Total

10 times ，Sensitivity Change within 3dB relative to

initial value, Fo/Impedance change within 10% relative

to initial val

OPERATING

TEMPERATURE

动作温度

-25℃ ～+65℃

STORAGE TEMPERATURE

保存温度 -40℃～+70℃

Temperature Cycle

Test

（温度循环试验）

-40℃ for 0.5h then change to 60℃ for 0.5h

within 5 minutes, then -40℃, total 85cycles.

Sensitivity Change within 3dB relative to initial

value, Fo/Impedance change within 10% relative

to initial value