SB1250
12″SUBWOOFER
- 4+4Ω nominal impedance
- 3.6+3.6Ω minimum impedance
- 2*1200W RMS capacity
- 2*600W AES capacity
- 85 dB sensitivity
- 28-800 Hz response
- 50.5mm(2in) inside-outside voice coil
SB1250 Unleash deep potential and reimagine the low–frequency experience.Flexible configuration, abundant power, and stable performance in high-intensity output. Accurately restore deep and powerful low-frequency details, shocking and layered. Efficient heat dissipation and high temperature resistance ensure long-term high-load operation. Built for immersive soundstage.
- GENERAL SPECIFICATIONS
- THIELE-SMALL PARAMETERS
- EXTRA INFO
| Nominal Diameter | 18/460 in/mm |
| MAX Power | 8000 Watts |
| RMS Power | 4000 Watts |
| Impedance | 2+2 Ohm |
| Resonance Frequency | 27 Hz |
| Frequency Response | 27-500 Hz |
| Sensitivity(1W/1m) | 89 dB |
| Voice Coil Diameter | 4”/100mm |
| Voice Coil Material | GSV |
| Magnet | 265 Oz |
| FS | 27 Hz |
| RE | 2+2 ohm |
| Qms | 7.2 |
| Qes | 0.95 |
| Qts | 0.84 |
| BL | 20 T/m |
| MMS | 1136 grams |
| Xmax | 29 mm |
| Sd | 116 cm² |
| Efficiency | 0.11% |
| Le(1k Hz) | 32 mH |
| Overall Diameter | 18/470 in/mm |
| Bolt Circle Diameter | 17.5/448 in/mm |
| Baffle cutout Diameter | 16.7/428 in/mm |
| Depth | 10.2/261 in/mm |
| Net Weight | 29.6 kgs |
| Shipping Weight | 30.9 kgs |
| Shipping Box | 50X50X29cm |
Highlights
- 5.5’’Inside/Out aluminum voice coil wound on fiberglass former for hi-temp performance, 8 ohms
- 3,000 watts max power continuous program power rating makes high acoustical output
- Smooth lines, minimalist design.
- 96 dB sensitivity, which makes it capable of generating a lot of output!
- Excellent low-frequency ability, high fidelity response
MR Audio-Your Reliable 18″ Subwoofer Manufacturer in China
This product has been always on the shipping list for our customers in the Caribbean countries and has been repurchased.
At the beginning, we just learned from our old friend Abdullah that although the previously exported speakers met their needs, but because of the different ways of use, no matter what speakers are used, their service life in the local area is far less than in other countries. It turns out that they have a car speaker competition agreement, that is, everyone gathers on the open flat ground, turns on the car speaker to the maximum, and the powerful sound waves will continue to impact the eardrums. Although this is not a traditional program, it is also a customary way to relax. After all, a speaker is an electrical appliance. No matter how good the quality is, it must be adjusted to local conditions. The high temperature and humidity environment and high-intensity work require us to make some changes.
Therefore, the engineer held another small meeting to summarize the current problems and areas that need to be improved:
- Strengthen heat dissipation performance
- Add waterproof function
- Increase power as much as possible
We make the thickness of the magnet has increased by 10mm, in order to have a larger heat dissipation area, and in this way, the power has also been greatly improved. At the same time, the pole core sticks the heat sink and brushes the heat dissipation glue, two-pronged. We also applied the waterproof center heat-dissipating glue on the diaphragm to improve the waterproof performance.
It is worth mentioning that this product once won the first place in a speaker competition in Panama, not only because of its high power and stable output. More because it can still maintain its original performance in the hot and humid tropical rainforest summer.
This is inseparable from the dedication of every factory worker, who insists on strict quality inspection and updating of each product. Including our heat-dissipating glue, it needs to be hand-painted by old workers with more than ten years of experience, and no sloppy details can be cast in order to cast a perfect product.