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R4-20-Y80-QP8, 4" Ferriet Low Frequency Transducer, 20mm voice coil

 0.79 inch inside/outside copper voice coil
 40 Watt continuous program power handling
 94 dB sensitivity
 146Hz-16KHz frequency range
 BL of 3.914 Txm to provide a faster and accurate low frequency

Quantity:
  • R4-20-Y80-QP8
  • BOWAY
  • 85182900


PRECISION TRANSDUCERS

R4-20-Y80-QP8

WOOFER



FEATURES

n  0.79 inch inside/outside copper voice coil

n  40 Watt continuous program power handling

n  94 dB sensitivity

n  146Hz-16KHz frequency range

n  BL of 3.914 Txm to provide a faster and accurate low frequency






SPECIFICATIONS (General specifications)


NOMINAL DIAMETER:  4 inch / 100 mm                             RATED IMPEDANCE: 8 ohm

AES POWER HANDLING: 20W                                         MAX. POWER HANDLING: 40 W

SENSITIVITY: 94.0 dB                                                             FREQUENCY RANGE 146 Hz-16KHz

MINIMIM IMPEDANCE:  6.5 ohm                                             VOICE COIL DIAMETER: 0.79 inch / 20 mm 

VC WINDING MATERIAL: Copper                                          MAGNETS: Ferrite

OVERALL DIAMETER: 128 mm / 5.04 inches                          BOLT CIRCLE DIAMETER: 116 mm / 4.57 inch

 BAFFLE CUT-OUT DIAMETER: 102 mm / 4.02 inch





Thiele - small parameters


RESONANCE FREQUENCY (FS): 146 Hz                 DC RESISTANCE (RE): 5.2 ohm

MECHANICAL FACTOR: 5.708 Qms                          ELECTRICAL FACTOR (QES): 1.017  Qes

TOTAL FACTOR: 0.863 Qts                                        BL FACTOR (BL): 3.914 T x m 

EFFECTIVE MOVING MASS (MMS): 2.5 g          EQUIVALENT CAS AIR LOADED (VAS): 1.888 liters 

EFFETTIVE PISTON AREA (SD): 0.054 m2             VOICE COIL INDUCTANCE @ 1KHZ (LE1K): 0.459 MH


 




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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

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