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1.professional loudspeaker
2.loudspeaker suitable for Karaoke woofer application
3. loudspeaker of good price, good quality
4.loudspeakers of other sizes are also available upon requests
5.loudspeaker Details:
| General Specifications | ||
| Nominal Diameter | 250/10 | mm/inch |
| Rated Impedance | 8 | ohm |
| Nominal Power handling1 | 120 | Watts |
| Program Power2 | 240 | Watts |
| Sensitivity(lw/lm)3 | 92 | dB |
| Frequency Range4 | 28.5-2.0k | Hz |
| Minimum Impedance(Zmin) | 6.9 | ohm |
| Voice Coil Diameter | 50/2 | mm/inch |
| Voice Coil Material | Copper | |
| Voice Coil Winding Depth | 13 | mm |
| Number of layers | 6 | |
| Magnetgap depth | 8 | mm |
| Cone Shape | Curved | |
| Surround Shape | Foam | |
| Basket | Pressed Steel | |
| Flux Density | ||
| Magnet Material/Mass | Ceramic/0.83 | kg |
| Thiele-Small parameters | |||
| Resonance frequency | Fs | 28.5 | Hz |
| DC resistance | Re | 5.6 | ohm |
| Mechanical factor | Qms | 4.74 | |
| Electrical factor | Qes | 0.21 | |
| Total factor | Qts | 0.20 | |
| Mechanical compliance | Cms | 0.59 | mm/N |
|
Mechanical resistance of suspension losses |
Rms | 1.98 | mech-ohm |
| Effective Moving Mass | Mms | 52.4 | gr |
| Half-space efficiency | Eff | 1.14 | % |
| BL Factor | BL | 15.8 | T.m |
| Equivalent Cas air load | Vas | 107 | liters |
| Effective piston area | Sd | 0.0360 | m2 |
| Max.linear excursion | Xmax | 5 | mm |
| Voice-coil inductance | LelK | 3.2 | mH |
| Mounting Information | ||
| Overall Diameter | 257 | mm |
| Bolt Circle Diameter | 246.5 | mm |
| Bolt Hole Diameter | 6*7.5 | mm |
| Baffle Cutout Diameter | 228 | mm |
| Overall Depth | 131 | mm |
| Net Weight | 3.3 | kg |
details:Guangzhou Hipower Audio Co., Ltd. is located in GuangZhou, China. As a head manufacturer of high quality PA loudspeakers, our 10000sqm factory is outfitted with 6 customized production lines, allowing us to meet the needs of OEM partners. In the R&D, our experienced engineers and technicians carry out research on new materials, state-of-the-art components and advanced product designs with the help of an anechoic chamber, test instruments and simulation software. Since Hipower was founded, we have established a high standard of quality of PA loudspeakers. Our management, manufacturing and quality standards are guaranteed by the ISO9001:2000 system in 2008.