1.Rubber edge flat and woven honeycomb cone 2.dual 4ohm 3.Max Power: 250W+250W 4.CE & ROHS 5.OEM & ODM car subwoofer , die -cast frame car subwoofer Model No. SW1001Details : Rubber edge flat and woven honeycomb cone , Die-cast frame Nominal Impendance: Dual 4 ΩFo: 28Hz Frequency Response : Fo ~ 2800HzSensitivity : 89dBMagnet : Ndfeb Φ37 x H12mm Voice Coil : Φ38mm TSV 4 LayerMax. Power : 250W + ...