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| Hi-Fi: | Not Hi-Fi |
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L12/44370 4Ohms Coaxial Professional Low Frequency Transducer
Product main features:
1.700W continuous program power handling
2.110dB sensitivity 1w/1m
3.800Hz-18k Hz frequency response range
4.44.4mm high temperature copper voice coil with Kapton former
5.The horn is connected to a HF driver with 1.6" exit throat
6.Hipower Audio is a professinal speaker factory with experience in the speaker field for 12 years. We make our own tranducers ,HF drivers and empty cabinets.
Speaker's Details:
| General Specifications | ||
| Nominal Diameter | 300/12 | mm/inch |
| Rated Impedance | 4 | ohm |
| Nominal Power handling | 400 | Watts |
| Program Power | 800 | Watts |
| Sensitivity(lw/lm) | 100 | dB |
| Frequency Range | 57-3500 | Hz |
| Minimum Impedance(Zmin) | 4.36 | ohm |
| Voice Coil Diameter | 75.5/3 | mm/inch |
| Voice Coil Material | Copper | |
| Voice Coil Winding Depth | 16 | mm |
| Number of layers | 2(inside/outside) | |
| Magnet gap depth | 12 | mm |
| Former material | Kapton | |
| Surround Shape | M-roll | |
| Basket | Cast Aluminum | |
| Flux Density | 1.2 | T |
| Magnet Material/Mass | Neodymium | |
| Thiele-Small parameters | |||
| Resonance frequency | Fs | 57 | Hz |
| DC resistance | Re | 3.6 | ohm |
| Mechanical factor | Qms | 5.24 | |
| Electrical factor | Qes | 0.26 | |
| Total factor | Qts | 0.24 | |
| Mechanical compliance | Cms | 0.17 | mm/N |
| Mechanical resistance of suspension losses |
Rms | 3.12 | mech-ohm |
| Effective Moving Mass | Mms | 45.6 | gr |
| Half-space efficiency | Eff | 4.78 | % |
| BL Factor | BL | 15.07 | T.m |
| Equivalent Cas air load | Vas | 70 | liters |
| Effective piston area | Sd | 0.0543 | m2 |
| Max.linear excursion | Xmax | 5 | mm |
| Voice-coil inductance | LelK | 0.66 | mH |
| Mounting Information | ||
| Overall Diameter | 315.5 | mm |
| Bolt Circle Diameter | 299 | mm |
| Bolt Hole Diameter | 7*8 | mm |
| Baffle Cutout Diameter | 283 | mm |
| Overall Depth | 156 | mm |
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