S2S Key Features Include: 15-inch THX Certified Subwoofer 15\\\\\\\" Poron-fiber-cone, Cast-frame Woofer Black Ash Semi Gloss Finish Front Ported Enclosure for Easy Installation as Freestanding or Built-in Vertical or Horizontal Orientation

S1S-EX Key Features Include: 18-inch THX Ultra2 Certified Subwoofer THX Certified 18\\\\\\\\\\\\\\\" Poron-fiber-cone, Cast-frame Woofer Vertical or Horizontal Orientation Industrial Cabinetry Front Ported Enclosure for Easy Installation as Built-in

The TheJBL PS1400 Subwoofer could very well be the key you were looking for to unleash the full potential of your hi-tech sound system at home; no matter whether we\\\\\\\\\\\\\\\'re talking stereo or 7.1-channel applications, the JBL PS1400 will add the true definition to your sound, enriching the whole acoustic experience and at the same time adding lifelikeness to the media you\\\\\\\\\\\\\\\'re playing.