The AT line from GR Guitar is the world's lightest guitar speaker line and the first made of carbon fiber. Designed to work best with all modeling systems and digital systems, these speakers offer lightness, power, design, and a frequency response capable of best reproducing the sounds of your instrument. We have chosen the best components to offer the best sound solutions, all in an incredibly lightweight product. A 1 x 12 Custom Dual Cone Jensen/Sica woofer and 300 Watts make this speaker the perfect compromise between lightness, size, power, and superior quality.