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Guangzhou Hiwell Audio Equipment Factory
--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 diameter | mm (in.) | 548(21) | |
Nominal impedance | Ω | 4 | |
Minimum impedance | Ω | 4.5 | |
Program power (1) | W | 4400 | |
AES Power rating(2) | W | 2200 | |
Sensitivity (3) | dB | 97 | |
Frequency range | Hz | 29 ~ 1000 | |
Voice coil diameter | mm (in.) | 151(6) | |
Chassis material | Aluminium | p | |
Magnet | material | Neodymium | |
Magnet dimensions (ODxIDxh) | mm | 145 x 60 x 10 | |
Coil material | SV | ||
Former material | Glass Fiber | ||
Xmax(4) | mm | 15.8 | |
Xmech(5) | mm | 26.5 | |
Gap height | mm | 17 | |
Voice coil Wingding height | mm | 40 | |
SMALL SIGNAL PARAMETERS | |||
DC resistance | Re | Ohm | 3.6 |
Resonance frequency | Fs | Hz | 29 |
Moving mass | Mms | g | 407 |
Compliance | Cms | mm/N | 0.07 |
Force factor | BL | N/A | 32 |
Mechanical Q-factor | Qms | 5.8 | |
Electrical Q-factor | Qes | 0.35 | |
Total | Q-factor | Qts | 0.33 |
Equivalent air volume | Vas | I | 371 |
Voice coil Inductance | Le | mH | 3.20 |
Diaphragm area | Sd | cm² | 1750 |
Reference efficiency | Eta 0 | % | 2.9 |
SHIPPING INFORMATION | |||
Net weight | Kg | 22.1 | |
Multipack size (1) (W x D x H) | mm | 570 x 570 x 307 | |
Multipack weight | Kg | 24.6 |
1.Great CUSTOMER SERVICE and COMMUNICATIONS
2.Fair price & durable quality we provide
3.OEM service with 15 years' experience R&D team
Q: How to order?
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.
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.