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Waterproof Raw Audio Speakers 20W 4ohm 120mm Round Shape Big Full Range Woofer

Basic Information
Place of Origin: China
Brand Name: Yuesonic
Certification: CE ,RoHS,REACH
Model Number: YD120-9
Minimum Order Quantity: 2000pcs
Price: Basicly USD 1.5~3
Packaging Details: Neutral packaging/ Customise
Delivery Time: 2~4weeks
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 30000pcs per month
Detail Information
Material: Metal SPL: 88±3dB
Color: Black Plug: Customize
Function: Music Certification: CE
Waterproof: Front Side Waterproof
High Light:

raw subwoofer

,

car woofer speaker


Product Description

CE 20W 4ohm 120mm round shape big size full range woofer waterproof car speaker music player

1. Specifications

Sound pressure 88±3(A)AT 1m/1w
VOICE COLL IMP
RESONANT FREQ 110±20% HZ
Temperature -25°C ~ 55°C
RATED POWER 20W
MAX POWER 40W
Weight 560g

 

2. Description

 

 

NO.

 

ITEM

 

SPECIFICATION

 

TESTING CONDITION

1

 

NOMINAL SIZE

φ120MM  
2

 

VOICE COLL IMP

4Ohm ±15%  
3

 

RESONANT FREQ

fo 110±20% HZ  
4

 

OUTPUT S.P.L

88±3dB AT 1m/1w MEASUREMENT
5

 

FREQ RESPONSE

fo~ 4K Hz   -10dB -10dB
6

 

RATED POWER

20W  
7

 

MAX POWER

40W  
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 15W 100 HOURS
14

 

MAGNET

Ф70XФ32X10

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

560g  

 

Waterproof Raw Audio Speakers 20W 4ohm 120mm Round Shape Big  Full Range Woofer 0

 

Waterproof Raw Audio Speakers 20W 4ohm 120mm Round Shape Big  Full Range Woofer 1

 

3. Applications

   To adequately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level or maximum accuracy. Individual drivers are used to reproduce different frequency ranges. The drivers are named subwoofers (for very low frequencies); woofers (low frequencies); mid-range speakers (middle frequencies); tweeters (high frequencies); and sometimes supertweeters, optimized for the highest audible frequencies. The terms for different speaker drivers differ, depending on the application. In two-way systems there is no mid-range driver, so the task of reproducing the mid-range sounds is divided between the woofer and tweeter. Home stereos use the designation "tweeter" for the high frequency driver, while professional concert systems may designate them as "HF" or "highs". When multiple drivers are used in a system, a "filter network", called a crossover, separates the incoming signal into different frequency ranges and routes them to the appropriate driver. A loudspeaker system with n separate frequency bands is described as "n-way speakers": a two-way system will have a woofer and a tweeter; a three-way system employs a woofer, a mid-range, and a tweeter. Loudspeaker drivers of the type pictured are termed "dynamic" (short for electrodynamic) to distinguish them from earlier drivers (i.e., moving iron speaker), or speakers using piezoelectric or electrostatic systems, or any of several other sorts.

 

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