High-efficiency passive subwoofer, horn-bandpass configuration, 3400 W AES, 143dB SPL

Features:
Low frequency: 2X18'' woofer/4.5''v.c.
AES/program power: 3400/6800W
Frequency response: 40-250 Hz (±3dB)
High-efficiency subwoofer delivering extended frequency response, combining advantages of horns (efficiency and directivity control) to those of band-pass systems (extension of frequency response to the low spectrum of frequencies)
Sound reinforcement of live events in large indoor/outdoor venues, where definition and high-pressure levels on low frequencies are required
Birch plywood enclosure