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40mm Powerful Precision Sound Speakers Sound Box HIFI Music Woofer with waterproof CE and RoHS

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40mm Powerful Precision Sound Speakers Sound Box HIFI Music Woofer with waterproof CE and RoHS

Country/Region china
City & Province changzhou jiangsu
Categories Speakers
InquireNow

Product Details

40mm Powerful Precision Sound Speakers Sound Box HIFI Music Woofer with waterproof CE and RoHS

 

1. Specifications

Sound pressure84±2(A)AT 1m/1w
VOICE COLL IMP
RESONANT FREQ400±20% HZ
Temperature-25°C ~ 55°C
RATED POWER4W
MAX POWER6W
Weight48g

 

2. Description

 

 

NO.

 

ITEM

 

SPECIFICATION

 

TESTING CONDITION

1

 

NOMINAL SIZE

40.1X40.1 MM 
2

 

VOICE COLL IMP

8Ω ±15%AT 1.0KHz 1V
3

 

RESONANT FREQ

Fo 400±20% HZAT 1.0V
4

 

OUTPUT S.P.L

MEAN VALUE

AT0.5, 0.6,0.8,1.0 KHz

84±2dB

AT 0.5m /1w

MEASUREMENT

5

 

FREQ RESPONSE

fo ~ 10 K Hz   -10dB

-10dB

6

 

RATED POWER

4.0 W 
7

 

MAX POWER

6.0 W 
8

 

OPEARTION

 

MUST BE NORMAL

PROGRAM SOURCE 4.0 W
9

 

NOISE

 

MUST BE NORMAL

SINE WAVE 5.66 V
10

 

HEAT TEST

AFTER TEST MEET ITEM 8,955± 2℃ 16 HOURS
11

 

HUMIDITY TEST

AFTER TEST MEET ITEM 8,9

40±2℃

90~95%RH 48 HOURS

12

 

LOAD TEST

AFTER TEST MEET ITEM 8,94.0 W 96 HOURS
13

 

MAGNET

Ф24X3.5 (N38SH) NdFeB

MATERIAL SIZE

 
14

 

TOTAL FLUX

MAX WELL 
15

 

POLARIZATION

When a positive DC current is applied to the terminal marked(+),diaphragm shall move forward

 
16

 

NET WEIGHT

48g 

 

3. Applications

   Speakers are typically housed in a speaker enclosure or speaker cabinet which is often a rectangular square box made of several forms of wood, or sometimes plastic. The enclosure's materials and design play an important role in the quality of the sound. The enclosure generally must be as stiff and non-resonant as practically possible. Where high fidelity reproduction of sound is required, multiple loudspeaker transducers are often mounted in the same enclosure, each reproducing a part of the audible frequency range (picture at right). In this case the individual speakers are referred to as "drivers" and the entire unit is called a loudspeaker. Drivers made for reproducing high audio frequencies are called tweeters, those for middle frequencies are called mid-range drivers, and those for low frequencies are called woofers. Extremely low frequencies (16Hz-~100Hz) may be reproduced by detached subwoofers. Smaller loudspeakers are found in devices such as radios, televisions, portable audio players, computers, and electronic musical instruments. Larger loudspeaker systems are used for music, sound reinforcement in theatres and concert halls, and in public address systems.

 

4. Competitive Advantage

1). Reinforced nylong housing eliminates corrosion damage

2). Wire/connector/bolt mounting optional, easy to install

3). Voltage polarity protection

4). RoHS compliant, CE certified, SGS

 

5. Information

Place of Origin:China
Brand Name:Yuesonic
Certification:CE/RoHS/SGS
Model Number:YD78-1N

 

6. Custom properties

Product Name:SpeakerApplication:Outdoor
Weight:257gSound:HIFI
Material:MetalPower:15W
Standard:CE/ROHS/SGSType:Line array

 

7. Product commercial terms

Minimum Order Quantity:2000pcs
Price:negotiation
Packaging Details:T/T or western Union
Delivery Time:3,0000pcs per month
Payment Terms:14~28 working days after received your payment
Supply Ability:Packed in box firstly,and then reinforced with neutral packaging for outer packing

 

 

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