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8W Black TV Waterproof Micro Precision Speakers 40mm Round shape Hot Sale Good Sound Full Range Driver

Basic Information
Place of Origin: China
Brand Name: Yuesonic
Certification: CE ,RoHS,REACH
Model Number: YDP4090-2
Minimum Order Quantity: 5000pcs
Price: Basicly USD 0.1~1.5
Packaging Details: Neutral packaging/ Customise
Delivery Time: 2~4weeks
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 30000 pcs per month
Detail Information
Material: Metal SPL: 80±3dB
Color: Black Plug: Customize
Function: Music Certification: CE RoHS
Waterproof: Front Side Waterproof
High Light:

precision acoustics subwoofer

,

precision acoustics tower speakers


Product Description

8W Black TV Waterproof Micro Precision Speakers 40mm Round shape Hot Sale Good Sound Full Range Driver

1. Specifications

Sound pressure 80±3(A)AT 1m/1w
VOICE COLL IMP
RESONANT FREQ 160±20% HZ
Temperature -25°C ~ 55°C
RATED POWER 8W
MAX POWER 15W
Weight 225g

 

2. Description

 

 

NO.

 

ITEM

 

SPECIFICATION

 

TESTING CONDITION

1

 

NOMINAL SIZE

φ40X90MM  
2

 

VOICE COLL IMP

8 Ohm ±15%  
3

 

RESONANT FREQ

fo 160 ±20% HZ  
4

 

OUTPUT S.P.L

80±2dB AT 1m/1w MEASUREMENT
5

 

FREQ RESPONSE

fo~ 4K Hz   -10dB 10dB
6

 

RATED POWER

8W  
7

 

MAX POWER

15W  
8

 

DISTORTION

7 %Max  
9

 

OPEARTION

 

MUST BE NORMAL

PROGRAM SOURCE 0.1 W
10

 

NOISE

 

MUST BE NORMAL

SIN WAVE 3.1 V
11

 

HEAT TEST

AFTER TEST MEET ITEM 8,9 55± 2℃ 16 HOURS
12

 

HUMIDITY TEST

AFTER TEST MEET ITEM 8,9

40±2℃

90~95%RH 48 HOURS

13

 

LOAD TEST

AFTER TEST MEET ITEM 8,9 0.1W 100 HOURS
14

 

MAGNET

φ12.5*1.5

MATERIAL SIZE

 
15

 

TOTAL FLUX

MAX WELL  
16

 

FLUX DENSITY

GAUSS  
17

 

POLARIZATION

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

 
18

 

NET WEIGHT

8.5g  

 

8W Black TV Waterproof Micro Precision Speakers 40mm Round shape Hot Sale Good Sound Full Range Driver 0

 

8W Black TV Waterproof Micro Precision Speakers 40mm Round shape Hot Sale Good Sound Full Range Driver 1

 

3. Applications

   Johann Philipp Reis installed an electric loudspeaker in his telephone in 1861; it was capable of reproducing clear tones, but also could reproduce muffled speech after a few revisions.[3] Alexander Graham Bell patented his first electric loudspeaker (capable of reproducing intelligible speech) as part of his telephone in 1876, which was followed in 1877 by an improved version from Ernst Siemens. During this time, Thomas Edison was issued a British patent for a system using compressed air as an amplifying mechanism for his early cylinder phonographs, but he ultimately settled for the familiar metal horn driven by a membrane attached to the stylus. In 1898, Horace Short patented a design for a loudspeaker driven by compressed air; he then sold the rights to Charles Parsons, who was issued several additional British patents before 1910. A few companies, including the Victor Talking Machine Company and Pathé, produced record players using compressed-air loudspeakers. However, these designs were significantly limited by their poor sound quality and their inability to reproduce sound at low volume. Variants of the system were used for public address applications, and more recently, other variations have been used to test space-equipment resistance to the very loud sound and vibration levels that the launching of rockets produces.

 

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: Speaker Application: Outdoor
Weight: 257g Sound: HIFI
Material: Metal Power: 15W
Standard: CE/ROHS/SGS Type: 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

 

 

Contact Details
Carol Tan

Phone Number : +8613584585528

WhatsApp : +8615295188159