L21/8638-New product ! 21 Inch PA Speaker 2500W RMS Neodymium Subwoofer
Product Main Fetures:
- 21" professional Subwoofer
- 5000W continuous program power handling
- 98dB sensitivity 1W/1M
- 38Hz-500Hz frequency response range
- 151mm(6")Heat -Resistant voice coil
- 35.15T/m BL,neodymium magnet
- Air cooling system
- Double spider and waterproof Cone
Introduction:
We are a PA speaker factory of more than 15 years in Foshan,Guangdong,China,occupying 2000 square meters with 3 production lines.We make Pro audio speakers from small sizes upto 24 inch.
R&D capability:
In the R&D, Hipower's experienced engineers and technicians carry out researches on new materials.state-of-art components and advacned product designs with the help of an anechoic chamber,test instruments and simulation sofwares.
Markets:
Ever since 2003, we have been exporting to many countries, including southeast Asia, Europe, North Ameria and South America.
Details:
| General Specifications |
| Nominal Diameter |
533/21 |
mm/inch |
| Rated Impedance |
8 |
ohm |
| Nominal Power handling |
2500 |
Watts |
| Program Power |
5000 |
Watts |
| Sensitivity(lw/lm) |
98 |
dB |
| Frequency Range |
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 |
| Cone Shape |
Curved |
|
| Surround Shape |
triple-roll |
|
| Basket |
Cast Aluminum |
|
| Flux Density |
1.1 |
T |
| Magnet Material |
Neodymium |
|
| 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 |
27.5 |
kg |
| Shipping weight |
29.5 |
kg |
| Shipping Box |
605*605*295 |
mm |
| 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 |
Vas |
205.6 |
liters |
| Effective piston area |
Sd |
0.178 |
m2 |
| Max.linear excursion |
Xmax |
11.5 |
mm |
| Voice-coil inductance |
LelK |
2.36 |
mH |
Factory pictures
Audited Supplier 
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