FBT HORIZON VHA 118SND is a direct radiation ground subwoofer, has 1 x 18" long excursion woofer with 4" coil and 2500W Class D amplification

capable of 143 dB SPL. The bass reflex cabinet offers substantial energy up to 30Hz and is ideal for extending and reinforcing the low frequencies of the

HORIZON VHA system line array in ground-stack configuration. It has presets to create various configurations with cardioid directivity, where some

subwoofers face rearwards from the audience to acoustically cancel the sound pressure behind the cluster. The enclosure, optimized with BEM-type

acoustic simulations to reduce risonance and turbulence of the ducts, is built in 0,70" ( 18mm ) birch plywood with black plyurea finish, has six aluminum

handles, predisposition for 4 wheels, two M20 stand sockets for horizontal or vertical use and 4 support points set up to accomodate accessories in groundstack

configuration in conjunction with VHA 406ND and VHA 112SND models. The front of the speaker is covered with a powder coated perforated steel

grille.