ENGINEERING LABORATORY SPECIFICATION

ITEM NO

FTY

DATE

2009-6-12

NO

Item

Specifications

Conditions

1

Part No

FTY45--0204

2

Type

LOUD

3

Dimension

ф45MM    17MM

4

Voice Coil Imp

4 ± 15%Ohm

AT   1000 Hz 6.3V

5

Input Power

Normal Input 10W

Maximum Inpu 12W

6

Resonance F0

530 ± 30% Hz

Input 1V without A baffle

7

Output SPL

99 ± 3 dB

At2W ON AXISCALIBRATION ROM 0.05M MEASVRMENT  CRY6125Y LABORATORY FREE FIELD AT 1000 Hz

8

Response

SPL-10dB                                       FO～20 K Hz MAX

9

Polarity

When a positive D.C.current is applied to the voice coil terminal marked to the diaphragm shall move for ward

10

Operation Test

Must be normal at program Source

6.3V

11

Buzz Rattle Etc

Must be normal at Sine Wave

6.3V

12

Load Test

After test meet item　　　　　　   White noise

10W     48 Hours

13

Distortion

7%  MAX

AT  1000 Hz 10W

14

Total Weight

15

Heat TemperatureTest

After 55 ± 3  48Hour

16

Low TemperatureTest

After -25±3  48Hour

17

Humidity Test

After 40±3  90～95%R.H.  48Hour