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Eighteen Sound 12MB1000 12" High Output Midrange Speaker - Single - 18 Sound
Features:
Overview
The 12MB1000 is a very high performance 12" midbass driver. It offers high power handling capability with exceptional sensitivity over the midbass frequency range. It can be used with either direct radiating or horn loaded applications, as well as part of a 2 or 3-way system. It is ideally used in stage monitor, auditorium, touring and outdoor systems. The smooth curvilinear paper cone has a special high strength wood pulp composition designed to achieve the best possible linearity within the middle frequency range and to control bell-mode resonances around the cone.
The cone is carried by a double half-roll suspension, which is more resistant to aging and fatigue than traditional materials, and provides the correct dampening and excursion control. The state-of-the-art voice coil employs our Interleaved Sandwich Voice coil (ISV) technology, in which a high strength fiberglas former carries windings on both the outer and inner surfaces. By mean of a balanced coil with uniform distribution of mass and motive energy, this technology assures an extremely linear motor assembly. The voice coil cooling has been achieved by incorporating airways between the chassis back plate and the top plate of the magnet which allow heated air from the voice coil and gap to be channeled away and dissipated by the chassis basket.
This technology is the result of a meticulous design exercise using a sophisticated in-house 3D CAD facility. The magnetic structure has also been optimized using our in-house FEA CAD resource to maximize flux density in the voice coil gap. Eighteen Sound R&D has developed a special cone treatment specifically dedicated to improve the dampening properties of the moving assembly, thus considerably improving the transient response control. This treatment also gives water repellent properties to the cone, enabling the 12MB1000 to be used in humid environments without damage.
General Specifications
| Nominal Diameter | 12 in |
| Rated Impedance | 8 Ohm |
| AES Power | 600 W |
| Program Power | 800 W |
| Peak Power | 1600 W |
| Sensitivity | 102 dB 80 - 3500 Hz |
| Power Compression at -10dB | 0.5 dB |
| Power Compression at -3dB | 1.5 dB |
| Power Compression at Full Power | 2.1 dB |
| Max Recomm. Frequency | 2500 Hz |
| Recomm. Enclosure Volume | 0.28 - 2.12 cuft |
| Minimum Impedance | 7.2 Ohm at 25°C |
| Max Peak To Peak Excursion | 0.79 in |
| Voice Coil Diameter | 4 in |
| Voice Coil winding material | copper |
| Suspension | M-roll, Polycotton |
| Cone | Curvilinear, Treated paper |
Thiele Small Parameters
| Fs | 54 Hz |
| Re | 5.8 Ohm |
| Sd | 82.31 sq.in. |
| Qms | 6 |
| Qes | 0.2 |
| Qts | 0.18 |
| Vas | 2,12 cuft |
| Mms | 0.12 lb |
| BL | 23.5 |
| Tm Linear Mathematical X |
±0,10 in |
| Le | (1kHz)1,46 mH |
| Ref. Efficiency 1W at 1m (half space) | 99 dB |
Mounting information
| Overall diameter | 12,4 in |
| N. of mounting holes and bolt | 8 |
| Mounting holes diameter | 0.28 in |
| Bolt circle diameter | 11.65 - 11.8 in |
| Front mount baffle cutout ø | 11.1 in |
| Rear mount baffle cutout ø | 11.1 in |
| Total depth | 4,66 in |
| Flange and gasket thickness | 0.65 in |
| Net weight | 21.19 lb |
| Shipping weight | 22.74 lb |
| Packaging Dimensions | 13.07 x 13.07 x 7.24 in |
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Additional charges may apply when shipping to AK, HI and Puerto Rico. Most orders ship within 1-3 business days.
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Not satisfied with your purchase? Return within 30 days for a full refund. We pay the shipping back!
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