| Power |
Diameter |
Impedence |
|
800
watts
|
18" - 45.72 cms
|
8
ohms |
 |
Heavy duty 18" cast aluminium frame with extra wide flange for increased rigidity |
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800WRMS |
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5” copper voice coil assembly |
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170 oz. ceramic magnet |
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Power compression only 1.6dB at rated power *1 |
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Distortion *2 2nd Harmonic <1% |
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3rd Harmonic <1% |
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Advanced magnetic assembly incorporating a composite alloy and steel pole piece giving a uniform and stable magnetic field, improving linear excursion and providing an efficient thermal path to dissipate the heat produced by the voice coil |
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A B/L in excess of 31T/m for fast accurate lows |
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Exemplary electro-acoustic performance and long term reliability in all types of professional applications |
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Double suspension system maintaining a pure piston action for the moving mass even when driven with the most complex programme input signals and provides additional durability against the rigours of life on the road |
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| Description: |
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Designed specifically to provide powerful and accurate bass frequencies with minimal distortion and power compression. The PD.1850 is the superlative choice for top of the range sub bass systems where the ability to take punishment in the most demanding applications is the ultimate selection criterion.
Suitable for sound reinforcement in a variety of enclosure types since it allows enclosure designers considerably more freedom with specialised loading techniques without having to make allowances for physical characteristics or power handling limitations which are typically the result of more traditional designs.
Appropriate for applications as diverse as scoop bins, conventional reflex cabinets and horn loaded systems.
*1 Power compression is the reduction of sensitivity at the specified power. Higher power ratings do not necessarily give a proportionate increase in SPL, therefore the maximum SPL of the PD.1850 may significantly exceed that of other manufacturers with high published power ratings.
*2 Distortion is measured at 10% of the rated power (AES Standard) |
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| PD1850 Technical Information |
 |
| Nominal Diameter |
46cm (18") |
| Power rating |
800 Watts |
| Frequency range |
35 - 2000 Hz |
| Nominal Impedance |
8 Ohms |
| Sensitivity (1 W 1 M) |
98 dB |
| Highest Recommended Crossover |
400 Hz |
| Resonance |
30 Hz |
| Enc. Vol. Recommended |
90 to 220 Litres |
| Effective Piston Diameter |
382 mm (15.05”) |
| Displacement limit |
32 mm (1.26”) |
| Voice coil diameter |
127 mm (5”) |
| Voice coil |
Copper |
| Voice coil winding depth |
28 mm (1.1”) |
| Voice coil wire length |
48.9M (160.5’) |
| Magnet gap depth |
11.5 mm (0.453”) |
| Magnet material/mass |
Ceramic/4.8 Kg (170 oz.) |
| Magnetic assembly total mass |
17.27 Kg (38 Lbs.) |
| Flux Density |
11,800 Gauss |
| BL product |
31.57 Tesla/M |
| Effective Moving Mass |
216.4 grams |
| Connectors |
Spring loaded push button metal bodied |
| Polarity |
Positive Voltage on Red Terminal gives forward cone motion |
|
| Thiele-Small Parameters |
|
| Fs |
30 Hz |
| Xmax |
11.25 mm |
| Revc |
5.4 Ohms |
| Vd |
13 x 10-4 m3 |
| Qts |
0.21 |
| No |
2.88% |
| Qms |
6.04 |
| Pmx |
800 Watts |
| Qes |
0.22 |
| Cms |
133 µM/N |
| Vas |
249 Litres |
| Mms |
216.4 grams |
| Sd |
1150 sq cm |
| BL |
31.57 T/m |
|
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