Beschrijving
Key features
- 96 dB SPL 1W / 1m average sensitivity
- 75 mm (3 in) ISV voice coil
- 500 W AES power handling
- External neodymium magnet assembly
- Double Silicon Spider (DSS) for improved excursion control and linearity
- Single Demodulating Ring (SDR) for lower distortion
- High excursion damped rubber roll surround
- Specific for compact subwoofer usage
Description
The 12NW530 low frequency neodymium transducer has been specifically
developed for high power, low distortion, very compact subwoofer
applications.
The transducer finds its main application on compact vented subwoofers as small as 40 liters.
The
neodymium magnet assembly developed by Eighteen Sound engineers assures
high flux concentration, low power compression and excellent heat
exchange, since the external magnet configuration is considerably more
efficient than traditional under-pole magnet topology. This results in
high levels of force factor and power handling with an optimum power to
weight ratio.
A state-of-the-art Interleaved Sandwich Voice coil
(ISV) copper wire voice coil provides high levels of thermal stability
and durability.
The transducer incorporates Eighteen Sound DSS
technology (Double Silicon Spider), in combination with a single roll
highly damped surround, that has been designed to provide symmetric
large signal behaviour throughout the whole working range, providing
low harmonic distortion at different excitation levels.
The already
low distortion and sound quality are further improved by properly
positioned Single Demodulating Ring (SDR), that flattens impedance and
phase curves helping a constant power transfer from the amplifier.
The
deep profile curvilinear cone, created from a special high strength
wood pulp, has been designed to achieve the best possible linearity.
The humidity repellent cone treatment significantly dampens bell mode
resonances.
A special coating applied to both the top and back
plates makes the 12NW530 far more resistant to the corrosive effects of
salts and oxidization.
| GENERAL SPECIFICATIONS | |
| Nominal Diameter | 300mm (12 in) |
| Rated Impedance | 8 Ohm |
| AES Power | 500W |
| Program Power (1) | 800W |
| Peak Power (2) | 1600W |
| Sensitivity (3) | 96dB |
| Frequency Range (4) | 48 ? 3200 Hz |
| Power Compression @-10dB (5) | 0,9 dB |
| Power Compression @-3dB | 2,0 dB |
| Power Compression @Full Power | 3,1 dB |
| Max Recomm. Frequency | 1300 Hz |
| Recomm. Enclosure Volume | 30 ? 80 lt. (1,06 ? 2,83 cuft) |
| Minimum Impedance | 6,3Ohm @ 25?C |
| Max Peak To Peak Excursion | 30 mm (1,2 in) |
| Voice Coil Diameter | 75 mm (3 in) |
| Voice Coil Winding Material | copper |
| Suspension | Single Roll, Rubber |
| Cone | Curvilinear, Treated paper |
| THIELE SMALL PARAMETERS (6) | |
| Fs | 55 Hz |
| Re | 4,9 Ohm |
| Sd | 0,053 sq.mt. (82,31 sq. in.) |
| Qms | 9,7 |
| Qes | 0,384 |
| Qts | 0,37 |
| Vas | 36 lt. (1,27 cuft) |
| Mms | 93 gr. (0,2 lb) |
| BL | 19,7 Tm |
| Linear Mathematical Xmax (7) | ? 8 mm (? 0,31 in) |
| Le (1kHz) | 0,9 mH |
| Ref. Efficiency 1W@1m (half space) | 93,8 dB |
| MOUNTING INFORMATIONS | |
| Overall diameter | 315 mm (12,4 in) |
| N. of mounting holes | 8 |
| Mounting holes diameter | 7,15 mm (0,28 in) |
| Bolt circle diameter | 296-300 mm (11,65-11,8 in) |
| Front mount baffle cutout ? | 282 mm (11,1 in) |
| Rear mount baffle cutout ? | 282 mm (11,1 in) |
| Total depth | 136 mm (5,35 in) |
| Flange and gasket thickness | 11,5 mm (0,45 in) |
| Net weight | 4,0 kg (8,8 lb) |
| Shipping weight | 4,8 kg (10,6 lb) |
| CardBoard Packaging dimensions | 332 x 332 x 184 mm (13,1 x 13,1 x 7,25 in) |
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