PRESONUS AIR18S - 18'' Active Sound-Reinforcement Subwoofer HPS waveguide from the S

HPS waveguide from the S Series Makes dispersion more consistent and imaging more stable over a wider area

Adjustable Q on each band

Their swivel mechanism allows you to wear them comfortably

or instrument) and away from unwanted sources

indexable -

PRESONUS AIR18S - 18'' Active Sound-Reinforcement Subwoofer HPS waveguide from the SAIR18s: Powerful, clear, accurate low end. Designed to complement any full range PA loudspeaker and a perfect companion for the PreSonus AIR10, AIR12, and AIR15, the AIR18s subwoofer delivers a powerful, clear, and accurate low end punch. With its 18 inch low frequency transducer, driven by 1,200 watts of Class D power, it provides plenty of detailed bottom endall the way down to 30 Hz. Yet it is portable and well suited for mobile applications, as