| Content |
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.
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
GENERAL SPECIFICATIONS
- Nominal Diameter:460 / 18mm/inch
- Rated Impedance:8Ω
- Program Power:1400W AES
- Power handling capacity:700W AES
- Sensitivity:5dB
- Frequency Range:38Hz ÷ 1000 Hz
- Effective Piston Diameter:380 / 15mm/inch
- Max Excursion Before Damage (peak to peak):40 / 1.6mm/inch
- Minimum Impedance:3Ω
- Voice Coil Diameter:100 / 4mm/inch
- Voice Coil Material:Copper
- Voice Coil Winding Depth:5 / 0.7mm/inch
- Number of layers:2
- Kind of layer:inside / outside
- Top Plate Thickness:10 / 0.4mm/inch
- Cone Material:No pressed pulp
- Cone Design:Curved
- Surround Material:Polycotton
- Surround Design:M - roll
THIELE/SMALL PARAMETERS
- Resonance frequency:39Hz
- DC resistance:9Ω
- Mechanical factor:3
- Electrical factor:30
- Total factor:29
- BL Factor:5T · m
- Effective Moving Mass:148g
- Equivalent Cas air load:206liters
- Effettive piston area:113m²
- linear excursion (mathematical):6.8mm
- Voice - coil inductance @ 1kHz:7mH
- Half-space efficiency:93%
MOUNTING INFORMATION
- Overall Diameter:470 / 18.5mm/inch
- Bolt Circle Diameter:438 / 17.2mm/inch
- Bolt Hole Diameter:8 / 0.3mm/inch
- Front Mount Baffle Cut-out:416 / 16.4mm/inch
- Rear Mount Baffle Cut-out:416 / 16.4mm/inch
- Depth:209 / 8.3mm/inch
- Volume occupied by the driver:5 / 0.23liters/ft³
- Net Weight:1 / 29.1kg/lbs
|
Nominal Specifications
Nominal Diameter 18“, 460 mm
Overall Diameter 18.11“, 460 mm
Bolt Circle Diameter 17.32“, 440 mm
Baffle Cutout Diameter 16.61“, 422 mm
Depth 7.95“, 202 mm
Flange and Gasket Thickness 0.55“, 13.9 mm
Electrical Specifications
Minimum Impedance 6.6 Ohm
Nominal Impedance 8 Ohm
Nominal Power Handling*** 1,000 W
Maximum Power Handling**** 2,000 W
Sensitivity (1W/1m) 99 dB
Frequency Range 35 - 1600 Hz
Voice Coil Diameter 4“, 100 mm
Winding Material Copper
Former Material Glass Fiber
Winding Depth 0.9“, 23 mm
Magnetic Gap Depth 0.47“, 12 mm
Flux Density 1.3 T
THIELE & SMALL Parameters
Resonant Frequency (fs) 35 Hz
DC Resistance (Re) 5.4 Ohm
BL Product (BL) 27.2 N/A
Diaphragm Mass inc. Airload (Mms) 182 grams
Mechanical Compliance of Suspension (Cms) 0.11 mm/N
Rms 4.1 Kg/s
Electromagnetic Q (Qes) 0.29
Mechanical Q (Qms) 9.74
Total Q (Qts) 0.28
Compliance Equivalent Volume (Vas) 7.74 ft³, 219.2 dm³
Surface Area of Cone (Sd) 180.7“², 1,166 cm²
Maximum Linear Excursion (Xmax)* 9.5 mm
Xdamage** 17.5 mm
Coil Inductance (Le) 1.7 mH
Diaphragm mass (Mmd) 159.5 g
Eta Zero 3.1 %
Notes
*Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
**Maximum excursion before permanent damage
***2 Hours Test According to AES 2-1984 Rev. 2003
****Maximum power is defined as 3dB greater than nominal power
| 18PZB100
- 1400 W continuous program power capacity
- 100 mm (4 in) copper voice coil
- 40 - 2000 Hz response
- 97 dB sensitivity
- Double silicone spider with optimized compliance
- Specifications
- Nominal diameter460 mm (18.0 in)
- Nominal impedance8 Ω
- Minimum impedance6.5 Ω
- Nominal power handling *700 W
- Continuous power handling *1400 W
- Sensitivity (1W/1m) *97.0 dB
- Frequency range40 - 2000 Hz
- Voice coil diameter100 mm (4.0 in)
- Winding materialCopper
- Former materialGlass Fibre
- Winding depth21 mm (0.83 in)
- Magnetic gap depth8 mm (0.31 in)
- Flux density1.15 T
- Design
- Surround shapeDouble Roll
- Cone shapeExponential
- Magnet materialFerrite
- SpiderDouble Silicone
- Pole designStraight Pole
- Woofer cone treatmentTWP Waterproof Both Sides
- Recommended enclosure160.0 dm3 (5.65 ft3)
- Recommended tuning39 Hz
- Parameters *
- Fs30 Hz
- Re5.3 Ω
- Qes0.25
- Qms8.8
- Qts0.24
- Vas297.0 dm3 (10.5 ft3)
- Sd1134.0 cm2 (175.8 in2)
- η₀3.1 %
- Xmax8.0 mm
- Xvar8.0 mm
- Mms170 g
- Bl26.0 Txm
- Le2.1 mH
- EBP120 Hz
- Mounting And Shipping Info
- Overall diameter480 mm (18.0 in)
- Bolt circle diameter440 mm (17.3 in)
- Baffle cutout diameter422.0 mm (16.6 in)
- Depth202 mm (7.95 in)
- Flange and gasket thickness16 mm (0.62 in)
- Air volume occupied by driver9.5 dm3 (0.33 ft3)
- Net weight12.1 kg (26.6 lb)
- Shipping units1
- Shipping weight14.0 kg (30.8 lb)
- Shipping box520x520x240 mm (20.5x20.5x9.4 in)
| OMEGA PRO-18A Professional Series
Recommended for professional audio as a woofer in vented enclosures. Also ideal for horn loading and scoops.
Product type
Loudspeaker Chassis
Nominal Diameter
457.2 mm
Overall diameter
457.2 mm
Pitch Circle Diameter
438.2 mm
Cut- out Measurement
420.5 mm
Diameter of fixing holes
7.1 mm
Nominal Impedance
8 Ohm(s)
Nominal Load Capacity
800 W
maximum rated load
1600 W
Sensitivity (1 W / 1 m)
97 dB
Frequency response
40 - 800 Hz
Voice Coil Material
copper
Depth of the magnetic gap
9.53 mm
Thiele & Small Parameter
Fs (Resonance Frequency)
25 Hz
Re (DC resistance)
5.2 Ohm(s)
Qms (mechanical quality)
8.18
Le (inductance of the voice coil)
1.67 mH
Qes (electrical quality)
0.32
Qts (overall quality)
0.31
Vas (equivalent volume)
548.7
BL (power factor)
18.8 T/m
Xmax (maximum displacement)
4.8 mm
Cms (elasticity of the suspension)
0.29 mm/N
Sd (membrane area)
1159 cm²
|
Nominal Specifications
Nominal Diameter 18“, 460 mm
Overall Diameter 18.11“, 460 mm
Bolt Circle Diameter 17.32“, 440 mm
Baffle Cutout Diameter 16.61“, 422 mm
Depth 7.95“, 202 mm
Flange and Gasket Thickness 0.55“, 13.9 mm
Electrical Specifications
Minimum Impedance 6.6 Ohm
Nominal Impedance 8 Ohm
Nominal Power Handling*** 1,000 W
Maximum Power Handling**** 2,000 W
Sensitivity (1W/1m) 99 dB
Frequency Range 38 - 2500 Hz
Voice Coil Diameter 4“, 100 mm
Winding Material Aluminium
Former Material Glass Fiber
Winding Depth 0.9“, 23 mm
Magnetic Gap Depth 0.47“, 12 mm
Flux Density 1.3 T
THIELE & SMALL Parameters
Resonant Frequency (fs) 38 Hz
DC Resistance (Re) 5.5 Ohm
BL Product (BL) 24.5 N/A
Diaphragm Mass inc. Airload (Mms) 163 grams
Mechanical Compliance of Suspension (Cms) 0.11 mm/N
Rms 4.42 Kg/s
Electromagnetic Q (Qes) 0.35
Mechanical Q (Qms) 8.75
Total Q (Qts) 0.34
Compliance Equivalent Volume (Vas) 7.37 ft³, 208.8 dm³
Surface Area of Cone (Sd) 180.7“², 1,166 cm²
Maximum Linear Excursion (Xmax)* 9.5 mm
Xdamage** 17.5 mm
Coil Inductance (Le) 1.36 mH
Diaphragm mass (Mmd) 141 g
Eta Zero 3.14 %
Notes
*Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
**Maximum excursion before permanent damage
***2 Hours Test According to AES 2-1984 Rev. 2003
****Maximum power is defined as 3dB greater than nominal power
|
Shape Cylindrical
Product type Cone driver
Brand Sica
Frequency coverage type Sub, Low
Dimensional category 18 inch
Front chape Cylindrical
External diametre 462 mm
Mounting diametre 415 mm
Magnet type Neodymium
Basket masterial Aluminium
Nominal impedance 8 ohm
Nominal power handling 1200 W
Max power handling 2400 W
Manufacturer sensitivity 97.3 dB
Calculated sensitivity 95 dB
Frequency response 35-700 Hz
Voice coil diameter 4 inch
Winding material Copper
Voice coil former Glass fiber
Winding depth 27 mm
Gap height 12 mm
Flux density 1.21 T
Depth 211 mm
Depth after front 196 mm
Front thickness 15 mm
Diamètre aimant (mm) 135 mm
Weight 7.2 kg
Fs 36.2 Hz
Re 5.2 ohm
Qes 0.42
Qms 6.56
Qts 0.39
Vas 189 L
Sd 1164.2 cm²
Cms 98 µm/N
Efficiency 2.07 %
Calculated efficiency 2.05 %
Xmax 8 mm
Xvar 10.1 mm
Mms 197 gr
BL 23.54 T.m
Le 1.35 mH
EBP 86
Dome material Paper
Cone material Paper
Surround material Cloth
Surround shape Double roll
Shipping weight 9 kg
|
Reviews
There are no reviews yet.