PD 1890 Naked speaker

PD 1890 Speaker Specifications:

– Nominal Diameter: 460 mm / 18″
– Voice Coil Diameter: 127 mm / 5.0″
– Nominal Impedance: 8 Ω (Available In 4 Ω/ 8 Ω/ 16 Ω)
– Power Rating: 800 w (A.E.S.)
– Peak Power (6dB Crest Factor): 3200 w (A.E.S.)
– Sensitivity (1w / 1m): 98 dB
– Frequency Range: 35 Hz – 2 kHz
– Recommended Enclosure Volume: 90 – 220 Litres
– Resonance: 33.15 Hz
– Voice Coil Winding Depth: 28 mm / 1.1″
– Magnet Gap Depth: 12 mm / 0.47″
– Flux Density Tesla: 1.18 Tesla
– Magnet Material: Ceramic
– Voice Coil Material: Copper
– Former Material: Glass Fibre
– Dust Dome Material: Paper
– Suspension Material: Fabric
– Cone Surround Material: Paper / Fabric