1.1

USE TYPE

50 x 22mm

1.2

RATING POWER

2.5W.Max.3WMAX.3W

Maximum Power:1EC-30268-5Filter 60s On/120s Off10 Cycles(ROOm TEMP)

1.3

VOICE COIL IMPEDANCE

8Ω±15%  at 1000Hz  1.0 V

1.4

RESONANCE FREQUENCY

230Hz±20%  at 1.0 V

1.5

SOUND PRESSURE

98±3dB  12.5CM /1W  at 600,800,1000,1200 Hz in average

1.6

RESPONSE RANGE

20 –20K Hz deviation 10 dB Max.

1.7

DISTORTION

7% max  at 1K Hz 1W

1.8

MAX INPUT POWER

3W must be normal at a white noise for one min

1.9

VOICE COIL

Φ13.28

1.10

MAGNET SIZE

Size  Φ12.5*2.0

1.11

BUZZ RATTLE

Must be normal at sine wave4.47V

1.12

LOAD TEST

White noise2.5W24 Hours

1.13

HEAT TEST

55℃±2℃ 20-25% H.M. 24 Hours

1.14

HUMIDITY  TEST

40℃±2℃ 90-95% H.M. 24 Hours

1.15

COLD TEST

-20℃  2 Hours

1.16

POLARITY

When a positive D.C current is applied to the voice coil terminal marked(_＋).the diaphragm shall move forward