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PRECISION TRANSDUCERS

L18S801

WOOFER

4-inch, fiberglass inside/outside copper voice coil
1400W continuous program power handling
99.5 dB Sensitivity
38 Hz – 1 kHz Frequency range

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Features

4-inch, fiberglass inside/outside copper voice coil
1400W continuous program power handling
99.5 dB Sensitivity
38 Hz – 1 kHz Frequency range
Dual spider design with silicon based dampening control
M-roll surround and exponential cone geometry

The L18S801 is the RCF classical high efficiency 18" woofer. A perfect blend of voice coil length, moving mass weight and suspensions control makes this transducer the preferred solution for many speakers and rental companies. Voice coil construction, suspension and cone materials are upgrade in order to withstand up to 700 watt RMS power.

ARCHIVED

Part number:

11100047
L18S801
8ohm

Specifications

General specifications

Nominal Diameter

18 inch / 457 mm

Rated Impedance

8 ohm

Program Power (watt)

1400 W

Power handling capacity

700 W

Sensitivity

99.5 dB

Frequency range

38 - 1000 Hz

Effective piston diameter

380 mm / 14.96 inch

Max. Excursion Before Damage

40 mm / 1.57 inch

Minimum Impedance (ohm)

6.3 ohm

Voice Coil Diameter

4.0 inch / 102 mm

Voice Coil Winding Material

Copper

Voice Coil Length

19 mm / 0.75 inch

Number of layers

Kind of layers

inside/outside

Top Plate Thickness

10 mm / 0.39 inch

Cone Design

Curved

Surround Material

Polycotton

Surround Design

M-roll

Magnets

Ceramic

Dual-force air ventilation

Yes

Spider

Thiele - small parameters

Resonance frequency (Fs)

39 Hz

DC resistance (Re) (ohm)

4.90 ohm

Mechanical factor

8.30 Qms

Electrical factor

0.30 Qes

Total factor

0.29 Qts

Bl factor (Bl) (T x m)

24.50 T x m

Effective moving mass (Mms)

148.0 g

Equivalent Cas air loaded (Vas)

206.0 liters

Effective piston area (Sd)

0.110 m2

Max. linear excursion (Xmax)

7 mm

Voice coil inductance @ 1kHz (Le1k)

1.70 mH

Half-space efficency (Eff)

3.93%

Mounting information

Overall diameter

460 mm / 18.11 inches

Bolt circle diameter

438 mm / 17.24 inch

Bolt hole diameter

8 mm / 0.31 inch

Front mount baffle cut-out

416 mm / 16.38 inch

Rear mount baffle cut-out

418 mm / 16.46 inch

Volume occupied by the driver

6.5 liters / 0.26 ft3

Standard compliance

Safety agency

CE compliant

Size / Weight

Height

202 mm / 7.95 inches

Diameter

460 mm / 18.11 inches

Weight

12 kg / 26.46 lbs

Shipping information

Package Height

240 mm / 9.45 inches

Package Width

510 mm / 20.08 inches

Package Depth

480 mm / 18.9 inches

Package Weight

14 kg / 30.86 lbs

Downloads

SPECIFICATIONS

SPECSHEET - ENG

PDF

396 KB

19-08-2024

ACOUSTIC MEASUREMENTS

PDF

59 KB

11-07-2024

DRAWINGS

LINE ART 2D

PDF

362 KB

21-03-2018

Icone allineate