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L21/8638 Professional Speaker 21 Inch Neodymium Subwoofer 2500W, With 6'' Voice Coil 21Inch PA Speakers

Products > 21inch Speaker > L21/8638 Professional Speaker 21 Inch Neodymium Subwoofer 2500W, With 6'' Voice Coil 21Inch PA Speakers
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L21/8638 Professional Speaker 21 Inch Neodymium Subwoofer 2500W, With 6'' Voice Coil 21Inch PA Speakers

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Key attributes

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Packaging and delivery

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Lead time

Quantity (pieces)1 - 100> 100
Lead time (days)40To be negotiated


Customization options

Customized logo (Min. order: 100 pieces)

Customized packaging (Min. order: 100 pieces)

Graphic customization (Min. order: 100 pieces) 


Product descriptions from the supplier

Products Description

General Specifications

Nominal Diameter
533/21
mm/inch

Rated Impedance
8
ohm

Nominal Power handling1
2500
Watts

Program Power2
5000
Watts

Sensitivity(lw/lm)3
98
dB

Frequency Range4
38-500
Hz

Minimum Impedance(Zmin)
7.31
ohm

Voice Coil Diameter
151/6
mm/inch

Voice Coil Material
Copper
Voice Coil Winding Depth
30
mm

Number of layers
2(inside/outside)


Magnet gap depth
15
mm

Surround Shape
Tripple-roll


Basket
Cast Aluminum


Flux Density
1.1
T

Magnet Material/Mass
Neodymium


Thiele-Small parameters
Resonance frequency
Fs
38.35
Hz
DC resistance
Re
5.2
ohm
Mechanical factor
Qms
22.09

Electrical factor
Qes
0.39

Total factor
Qts
0.38

Mechanical compliance
Cms
0.047
mm/N
Mechanical resistance of suspension losses
Rms
4.04
mech-ohm
Effective Moving Mass
Mms
370.46
gr
Half-space efficiency
Eff
2.88
%
BL Factor
BL
35.15
T.m
Equivalent Cas air load
liters
Effective piston area
Sd
0.178
m2
Max.linear excursion
Xmax
11.5
mm
Voice-coil inductance
LelK
2.36
mH
Mounting Information
Overall Diameter
551
mm

Bolt Circle Diameter
525
mm

Bolt Hole Diameter
10.5*14
mm

Baffle Cutout Diameter
500
mm

Overall Depth
268
mm

Net Weight 

Kg

Gross Weight
29
KG

Carton Box Size
605*605*295
mm



Why Choose Us


Customized Services

Product Classification

Company Profile


Customer Visits & Exhibitions


Q: What’s the MOQ?

A: Different size with different MOQ, you can check with us which model are you interested in？


Q: What’s the best price?

A: We have details price list based on order quantity.


Q: What is your sample terms?

A: Normally, we need to charge of the sample and freight cost.


Q: How long is delivery date?

A: We are manufacture, all order is based on customer order quantity, Usually it will take about 20-35days for production. Q: What is service can we offer? A: We can offer OEM and ODM service.


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