F18+ Professional single 18 inch subwoofer speaker

S 18+ is a low frequency sound subwoofer system provides very large power.
one 18-inch long low frequency units are installed in the acoustic body, which can be long and continuous.
With the full frequency speaker, ultra low frequency effect is more obvious.
The body uses a special acoustic design, the use of 18 mm high quality plate production, internal made to strengthen the support, so that the body to work in a very small vibration.
Sound strong, full.
S 18+ in the body with a number of human body to learn to draw, to facilitate the use of transport.