GT Audio offers a very high level of performance with a relentless eye to offering the best possible value for money. The GT90/x5ABD is a super exciting, whole system amplifier that combines a traditional Class AB 4 Channel board to drive full range with a Class D mono section to drive your subwoofer. It is a fantastic solution to keeping an upgraded system simple and light on extra wiring. Notably, the subwoofer section is happy to play into a 1 Ohm load, where it offers almost 1000w of power! A full crossover section for both sides of the amplifier is on board, allowing a range of useful configurations.