TRF SW1220M D1

RMS Power: 2000wrms MAX Watt: 4000wmax Cone: Paper, many layers Dust cap : Plastic Surround material: Foam BIG Voice coil bobbin: Aluminum Voice coil dimension: 3.0inch Voice coil layer: 8 layers Nominal impedance: D1 Voice coil wire: Copper Spider dimension : 3''ID / 10''OD Spider material: NOMEX Spider layers: 2pcs x 2layers Basket: TRF Die cast Aluminium Basket color: Red Sensitivity: 94dB Frequency range: 29-100Hz Fs: 29.5Hz Mechanical Q factor (Qms): 3.64 Electrical Q factor (Qes): 0.52 Total Q factor: (Qts): 0.45 Xmax: 28mm Force factor: 18.7N/A Magnet Weight: -300Oz Basket: Die cast Alumium Magnet: Ferrite ''high performance magnet'' Magnet dimension: Φ200*25 mm 3PCS 1=Outer Dimension: 320mm 2=Mounting Depth: 230mm 3=Magnet Dimension: 200mm 4=Mounting Hole Dimension: 284mm Total weight: 22kg