ONE LINE 201, 3-way Car specific 3-way System forBMW 1, 3 and 5 series Semi-active System Increased power: 4x 150/100 W New woofer basket Slimmer woofer, also P&P for F 10/11.. Grill to protect the woofer 25 mm silk dome tweeter 4” shallow midrange 8” shallow woofer 3 ohm impedance 4 channel amplifier required     ONE 201 BMW   2x 150/100 Watt (medio)2x 225/150 Watt (woofer)Impedenza 3  (medio)Impedenza 2  (woofer) E60/61/70/71/82/84/87/88/90/91/92/93/F10/11/12/13/20/21/25/30/31/35