The SEYMOUR DUNCAN POWERSTAGE 170 COMPACT GTR is a high-quality guitar amplifier designed by renowned brand Seymour Duncan. This compact amplifier features a cabinet type design, perfect for delivering powerful and dynamic sound for guitarists. With its sleek design and reliable performance, this amplifier is ideal for musicians looking for a versatile and reliable amplification solution for their guitar. Steve vai used this item in his home studio. It is also signed by him.