Design e tecnologia
21-inch paper cone subwoofer with cloth suspension, circular structure for resonance cancellation, 4 separate reinforced chambers. Dipole loading for exceptional speed of response and damping. Separate active low-pass crossover fully adjustable from 25 Hz to 55 Hz in 5 Hz steps (other cuts available upon request) with defeatable reinforcement, phase inversion 0/180, and volume adjustment with motorized Alps potentiometer. Minimum power 100 Watts, optional final amplifier with 350 Watts RMS at 8 Ohms.