as-418 is quad 18" isobaric subwoofer features Multi-ply, cross-grain laminated birch construction with perforated steel grills with powdercoat finish.
Quad 18" LF drivers with 4" (100 mm) voice coils
Dual isobaric configuration for high output and
compact footprint
Very low second order harmonic distortion inherent in
push/pull design
2400 W/4800 W, long term/program power handling
Usable response down to 30 Hz
Max long term output 128 dB SPL
Multi-ply, cross-grain laminated birch construction