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4.perfect professional karaoke speakers for midrange application
5. Hipower Audio is a professinal speaker factory with experience in the speaker field for 8 years. We make our own tranducers ,HF drivers and empty cabinets.4.competitive price, good quality
6. details:
| General Specifications | ||
| Nominal Diameter | 100/4 | mm/inch |
| Rated Impedance | 4 | ohm |
| Nominal Power handling1 | 30 | Watts |
| Program Power2 | 60 | Watts |
| Sensitivity(lw/lm)3 | 86 | dB |
| Frequency Range4 | 103-12k | Hz |
| Minimum Impedance(Zmin) | 3.9 | ohm |
| Voice Coil Diameter | 25/1 | mm/inch |
| Voice Coil Material | Copper | |
| Voice Coil Winding Depth | 6.8 | mm |
| Number of layers | 2 | |
| Magnetgap depth | 4 | mm |
| Cone Shape | Curved | |
| Surround Shape | Foam | |
| Basket | Pressed Steel | |
| Flux Density | ||
| Magnet Material/Mass | Ceramic/0.27 | kg |
| Thiele-Small parameters | |||
| Resonance frequency | Fs | 103 | Hz |
| D Cresistance | Re | 3.6 | ohm |
| Mechanical factor | Qms | 3.31 | |
| Electrical factor | Qes | 0.86 | |
| Total factor | Qts | 0.68 | |
| Mechanical compliance | Cms | 0.45 | mm/N |
| Mechanical resistanceof suspension losses | Rms | 1.03 | mech-ohm |
| Effective Moving Mass | Mms | 5.24 | gr |
| Half-space efficiency | Eff | 0.24 | % |
| BL Factor | BL | 3.78 | T.m |
| Equivalent Cas air load | Vas | 1.95 | liters |
| Effective piston area | Sd | 0.0055 | m2 |
| Max.linear excursion | Xmax | 2.5 | mm |
| Voice-coil inductance | LelK | 0.17 | mH |
| Mounting Information | ||
| Overall Diameter | 113 | mm |
| Bolt Circle Diameter | 104.3 | mm |
| Bolt Hole Diameter | 4.3 | mm |
| Baffle Cutout Diameter | 92.5 | mm |
| Overall Depth | 61.5 | mm |
| Net Weight | 0.68 | kg |
Professional Karaoke Speaker