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APPLICATION:

• Ideal for high output, high power subwoofers, with band pass or port loaded enclosure designs.

18NPW

SPECS PDF

DRAWING PDF

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FERRITE WOOFER

Ordering code: 18NPW-017

CONT. POWER

SENS.

Fs

Freq. Range

VC Dia.

 IN-OUT WOUND

VC Wire

Cone /

Surround

Magnet

Type

2,400 WATTS

98 dB

36 Hz

25-

1,500 Hz

4"

IN-OUT

COPPER

PAPER w. CF

FABRIC

NEO

      The 18NPW is a high efficiency, (98 dB 1watt / 1 meter) 18-inch woofer with incredibly linear frequency response characteristics, extreme high power handling capability while generating low harmonic distortion artifacts. The 18NPW uses a lightweight, but strong, carbon fiber loaded cone assembly along with a high excursion triple roll constant geometry surround. This combination provides remarkable strength, high efficiency and a peak to peak maximum excursion of 50mm (2in).

 

Power Handling

At the core of the 18NPW is it’s voice coil technology featuring a composite Polyimide former material capable of withstanding peak temperatures in excess of 350°C, well beyond the thermal requirements of modern professional audio systems. The 18NPW delivers incredible performance.

 

REDCATT has implemented a double layer/silicone spider design to ensure long term Fs memory, consistency and diminish anomalies associated with spider deterioration. The sealed spider works as a air pump and pushes the air trough out motor to increase heat transfer and cooling of the parts.

 

GENERAL SPECIFICATIONS:

Nominal Diameter

460 mm (18 in.)

Rated Impedance

8 ohm

Power Handling

 

AES Power

1,200 watts

PROGRAM Power

2,400 watts

PEAK Power

7,000 watts

Power Compression

 

@ -10dB

0.7 dB

@ 0dB

1.5 dB

@ Max. Power

2.2  dB

Max. Recommended X-OVER Freq.

1,000 Hz

Recommended Enclosure Volume

150 - 350 Liters

Cone Design / Cone Material

Strght. Gmtry, REDCATT Pulp

Voice Coil Diameter / Winding

4"

Voice coil Winding Height

23.7 mm

Front Plate Thickness

14 mm

T/S Parameters:

 

Fs

36 Hz

Re

5.35 Ohm

Sd

1256 cm2 (194 in.2)

Qms

9.5

Qes

0.34

Qts

0.33

Vas

212 Liters

Mms

199 g

Bl product (Force Factor)

27.7 Tm

Peak To Peak Displacement

24 mm

Le (mH @ 1kHz)

1.6

Mechanical Parameters:

 

Overall Diameter

467.9 mm (18.42 in.)

No. Of Mounting Holes

8

Bolt Circle Diameter

442 mm (17.4 in.)

Front Mount Baffle cutout

428 mm (16.85 in.) Nominal

Rear Mount Baffle cutout

430 mm (16.92 in.) Nominal

Total Depth

214 mm (8.42 in.)

Flange and gasket thickness

22 mm (0.86 in.)

Packaging info:

 

Net Weight

9.1 kg (20.1 lbs.)

Shipping Weight

10.2 kg (22.5 lbs.)

Packaging Dimensions

485x485x260cm

 

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