4400 Вт 21 дюймов сабвуферный динамик 6 по индивидуальному заказу звуковая катушка наушников аудио

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Характеристики


 


4400Watt  21inch subwoofer speaker  6inch voice coil  audio speaker  subwoofer


Product Description


 


  


 


 --Professional audio woofers, drivers and custom designs.


 


Model: 21NDS151U1


pro speaker driver 21 inch LF Neodymium


 


Feature:


4 ohm 151mm/6 inch copper Voice coil High Tempreture resistance


97 dB SPL ,2200Watts RMS, 4000W peak


N42SH grade Neodymium magnet grade- More effeciency


 


 






































































































































































































GENERAL SPECIFICATIONS
Nominal diametermm (in.)548(21)
Nominal impedanceΩ4
Minimum impedanceΩ4.5
Program power (1)W4400
AES Power rating(2)W2200
Sensitivity (3)dB97
Frequency rangeHz29 ~ 1000
Voice coil diametermm (in.)151(6)
Chassis materialAluminiump
MagnetmaterialNeodymium
Magnet dimensions (ODxIDxh)mm145 x 60 x 10
Coil material SV
Former material Glass Fiber
Xmax(4)mm15.8
Xmech(5)mm26.5
Gap heightmm17
Voice coil Wingding heightmm40
    
SMALL SIGNAL PARAMETERS
DC resistanceReOhm3.6
Resonance frequencyFsHz29
Moving massMmsg407
ComplianceCmsmm/N0.07
Force factorBLN/A32
Mechanical Q-factorQms 5.8
Electrical Q-factorQes 0.35
TotalQ-factorQts0.33
Equivalent air volumeVasI371
Voice coil InductanceLemH3.20
Diaphragm areaSdcm²1750
Reference efficiencyEta 0%2.9
    
SHIPPING INFORMATION
Net weightKg22.1
Multipack size (1) (W x D x H)mm570 x 570 x 307
Multipack weightKg24.6

 


 


 21NDS151U1.jpg


 


21NDS151U1-.jpg


 


21007   21NDS151U1.jpg


 


 


21NDS151U1.jpg


 


 


factory and exhibition


 


Certificate


 


Payment terms

 1. By T/T or Western Union 
 2. T/T 30% deposit, T/T balance before delivery


 


Packaging & Shipping


1. Packaging:  Export Carton box


 


2.  Shipping method:


     Sample order by express


     Produciton order by sea


 highl ist


 


 


Our Services


  




1.Great CUSTOMER SERVICE and COMMUNICATIONS


 


2.Fair price & durable quality we provide


 


3.More than 15 years' R&D team experience




 


Company Information


  


We are professional loudspeaker manufacturer in Guangzhou, China formed in 2009.

Hiwell Audio was established to design and manufacturer loudspeaker products include pa loudspeaker( woofer, tweeter, coaxial speaker),hi-fi speaker,KTV speaker and car speaker.

Hiwell Audio fucus on high quality and reliabiity.

 


 hiwell company


FAQ


  Q: How to order?



A:


Please send us your purchase order by mail or fax with below information:


1) Product information:Quantitiy,Model number,Specification.


2) Delivery time required.
3) Shipping information:Company name,Address,Phone number,Destination:seaport/airport.
4) Forwarder's contact details if you have.




 


Q: What is the whole process for doing business with us ?


A:

 


1) Details of the products are needed for quotation.
2)we provide Proforma Invoice to arrange payment for sample order


3) For bulk production, we will arrange production at once after we get 30% deposit.
4) We will send photos of all goods,packing,details,and B/L copy for client when goods finished.We will 
arrange shipment and provide original B/L after balance.



 


 


 


 



Our Services


  


1.Great CUSTOMER SERVICE and COMMUNICATIONS


2.Fair price & durable quality we provide


3.OEM service with 15 years'  experience R&D team



Company Information


We are professional loudspeaker manufacturer in Guangzhou, China formed in 2009.

Hiwell Audio was established to design and manufacturer loudspeaker products include pa loudspeaker( woofer, tweeter, coaxial speaker),hi-fi speaker,KTV speaker and car speaker.

Hiwell Audio fucus on high quality and reliabiity.



FAQ


  


Q: How to order?



A:


Please send us your purchase order by mail or fax with below information:


1) Product information:Quantitiy,Model number,Specification.


2) Delivery time required.
3) Shipping information:Company name,Address,Phone number,Destination:seaport/airport.
4) Forwarder's contact details if you have.




 


 

 

 

Q: What is the whole process for doing business with us ?


A:

 


1) Details of the products are needed for quotation.
2)we provide Proforma Invoice to arrange payment for sample order


3) For bulk production, we will arrange production at once after we get 30% deposit.
4) We will send photos of all goods,packing,details,and B/L copy for client when goods finished.We will 
arrange shipment and provide original B/L after balance.




 


 


 


 


 


 


 


 


 


 


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