ボイスコイルは4.5インチの"SPLIT WINDING COPPER CLAD ALUMINIUM VOICE COIL"。
この"SPLIT WINDING"というのがどんな巻き方なのか不明。
WinISDでみてみるとPD.1850系とは異なる。
ライバルはRCFのLF18N451か？
GENERAL SPECIFICATIONS
Nominal Diameter 18” / 457.2 mm
Voice Coil Diameter 4.5” / 114.3 mm
Available Impedances 4 / 8 / 16 Ohm
Power Rating 1 2 * 1500 W (A.E.S.)
Peak Power (6dB Crest Factor)* 6000 W (A.E.S.)
Sensitivity (1W – 1m)* 98.8 dB
Frequency Range 30 Hz - 1 kHz
Recommended Enclosure Volume 200 Litres
Resonance 34.1 Hz
Voice Coil Winding Depth 16.00 mm / 0.63”
Magnet Gap Depth 15.0 mm / 0.59”
Flux Density 0.92 Tesla
Magnet Material Neodymium
Magnet Weight
Voice Coil Material Copper Clad Aluminium
Former Material Glass Fibre
Dust Dome Material Solid Paper
Suspension Material Poly Cotton
Cone Material Paper
Surround Material M Roll Poly Cotton
THIELE SMALL PARAMETERS
Fs 34.1 Hz
Re 4.70 Ω
Qms 10.961
Qes 0.333
Qts 0.324
Le (@1 kHz) -
Le (@10 kHz) 1.578 mH
Vas 179.04 Litres
Mms 231.489 g
Sd 1158.12 cm2
Cms 0.094 mm/N
BL 26.424 T/m
Xmax 16.00 mm
Vd -
Ref. Efficiency 2.65%
EBP 102.40 Hz
DIMENSIONS & MOUNTING
Overall Diameter 18” / 457.2 mm
Widths Across Flats 459 mm
Flange Height 14.5 mm
Depth (Excl. Flange) TBC
Magnet Diameter TBC
Chassis Shoulder Diameter 415 mm
Outer Bolt Circle x6 M6 on 456 mm PCD
Inner Bolt Circle
SHIPPING INFORMATION
Nett Weight 10.90 kg / 24.03 lb
Shipping Weight TBC
