The LN19S400 is a 19-inch extended low-frequency transducer designed with high excursion piston capabilities, perfect for vented enclosures where power and low-frequency extension are priorities. One of the key highlights of the transducer is its ultralight CCAW (copper-clad aluminum wire) voice coil, which is configured in a 4.0-inch, 4-layer inside-outside voice coil with fiberglass former material. The ultra-long excursion moving mass (65mm/2.5" safe peak-to-peak) with high power and fast acceleration capabilities. Employing a cone assembly loaded with fibers and featuring a generous triple-roll surround, the LN19S400 is engineered to decrease flux modulations and enhance transient response. The Hyper-Vented dual-forced air system enhances voice coil ventilation, effectively minimizing power compression.
FeaturesRCF LN19S400
RCF LN19S400
Overview4.0-inch Inside/Outside CCAW (copper-clad aluminum wire) voice coil 3000 Watt continuous program power handling 98.5 dB Sensitivity 25 Hz - 1 kHz Frequency range Hypervented magnetic structure for minimum power compression Triple roll surround and exponential cone geometry Single aluminum demodulation ring Specifications
General specifications
Nominal Diameter : 19 inch / 483 mm
Rated Impedance : 8 ohm
Program Power (watt) : 3000 W
Power handling capacity : 1500 W
Sensitivity : 98.5 dB
Frequency range : 25 - 1000 Hz
Effective piston diameter : 410 mm / 16.14 inch
Max. Excursion Before Damage : 59 mm / 2.32 inch
Minimum Impedance (ohm) : 6.2 ohm
Voice Coil Diameter : 4.0 inch / 102 mm
Voice Coil Winding Material : Aluminum
Voice Coil Length : 42 mm / 1.65 inch
Number of layers : 4
Kind of layers : inside/outside
Top Plate Thickness : 16 mm / 0.63 inch
Cone Design : Curved
Surround Material : Polycotton
Surround Design : Triple roll
Magnets : Neodymium
Hypervented magnetic structure : Yes
Dual-force air ventilation : Yes
Demodulation Rings material : Aluminum
Number of Demodulation Rings : 1
Spider : Triple layer sandwich spider
Demodulation Ring : Yes
Thiele - small parameters
Resonance frequency (Fs) : 32 Hz
DC resistance (Re) (ohm) : 4.70 ohm
Mechanical factor : 4.00 Qms
Electrical factor : 0.27 Qes
Total factor : 0.26 Qts
Bl factor (Bl) (T x m) : 32.00 T x m
Effective moving mass (Mms) : 296.0 g
Equivalent Cas air loaded (Vas) : 204.0 liters
Effective piston area (Sd) : 0.132 m2
Max. linear excursion (Xmax) : 17 mm
Voice coil inductance @ 1kHz (Le1k) : 3.40 mH
Half-space efficency (Eff) : 2.37%
Mounting information
Overall diameter : 480 mm / 18.9 inches
Bolt circle diameter : 460-462 mm / 18.11-18.19 inch
Bolt hole diameter : 7 mm / 0.28 inch
Front mount baffle cut-out : 446 mm / 17.56 inch
Rear mount baffle cut-out : 446 mm / 17.56 inch
Volume occupied by the driver : 10 liters / 0.39 ft3
Standard compliance
Safety agency : CE compliant
Size / Weight
Height : 232 mm / 9.13 inches
Diameter : 480 mm / 18.9 inches
Cut out diameter : 446 mm / 17.56 inches
Weight : 10.2 kg / 22.49 lbs
Shipping information
Package Height : 290 mm / 11.42 inches
Package Width : 505 mm / 19.88 inches
Package Depth : 515 mm / 20.28 inches
Package Weight : 10.9 kg / 24.03 lbs
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