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21-125-N120-A8, 21" Neodymium Low Frequency Transducer, 125mm voice coil

 4.92 inch inside/outside copper voice coil
 2000 Watt continuous program power handling
 99 dB sensitivity
 29.7Hz-1.8KHz frequency range
 BL of 31.6 Txm to provide a faster and accurate low frequency

Quantity:
  • 21-125-N120-A8
  • BOWAY
  • 85182900


PRECISION TRANSDUCERS

21-125-N120-A8

WOOFER21N-1

FEATURES

n  4.92 inch inside/outside copper voice coil

n  2000 Watt continuous program power handling

n  99 dB sensitivity

n  29.7Hz-1.8KHz frequency range

n  BL of 31.6 Txm to provide a faster and accurate low frequency



SPECIFICATIONS (General specifications)


NOMINAL DIAMETER: 21 inch / 530 mm                             RATED IMPEDANCE: 8 ohm

AES POWER HANDLING: 1000 W                                         MAX. POWER HANDLING: 2000 W

SENSITIVITY: 99.0 dB                                                             FREQUENCY RANGE29.7 Hz-1.8KHz

MINIMIM IMPEDANCE: 7 ohm                                             VOICE COIL DIAMETER: 4.92 inch / 125 mm 

VC WINDING MATERIAL: Copper                                         MAGNETS: Neodymium

OVERALL DIAMETER: 542 mm / 21.34 inches                       BOLT CIRCLE DIAMETER: 517 mm / 20.35 inch

 BAFFLE CUT-OUT DIAMETER: 492 mm / 19.37 inch





Thiele - small parameters


RESONANCE FREQUENCY (FS): 29.7 Hz                 DC RESISTANCE (RE): 5.20 ohm

MECHANICAL FACTOR: 14.7 Qms                          ELECTRICAL FACTOR (QES): 0.38 Qes

TOTAL FACTOR: 0.37 Qts                                        BL FACTOR (BL): 31.60 T x m 

EFFECTIVE MOVING MASS (MMS): 379.5 g          EQUIVALENT CAS AIR LOADED (VAS): 291.7 liters 

EFFETTIVE PISTON AREA (SD): 0.1662 m2             VOICE COIL INDUCTANCE @ 1KHZ (LE1K): 1.98MH


 




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Q: How Maker hart quote?
A: We will provide FOB price and all based on minimum order quantity (MOQ).


Q: How can I get your quotation?
A: Please provide us information as below:
1. Item Number.
2. Quantity.
3. Company Profile (Name, Tel, Fax, Address, and Webpage)
4. Any Other Relevant Details.


Q: How long is the lead time after placing the order?
A: Lead time depends on a number of factors, such as the stock and production status. Usually the sample orders take about AROUND 1 WEEK, and the mass orders take AROUND THREE WEEKS after the order is placed.


Q: How long does the delivery time take?
A: We send our goods from JIANGMEN, Guangdong, and the delivery time depends on the location of your delivery address, and the shipping way will be Express Service, Sea Shipping, Air Shipping for you reference.


Q: What's your standard package?
A:Carton packaging outside, and also can be with flight case if you need.


Q: Could you do OEM/ODM for customers?
A: Yes, from the product design to packaging, our engineers can design exactly as your requirements. Any kind of logo printing or design is available if your order quantity is good .



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  +86-13827098338

  +86-0750-7079808/7079818

  sales@bowaypro.com                 

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