Used Blackstar s1 100 Tube Guitar Amp Head

Looking for pro-level tube tone? This used Blackstar Series One 100 (S1-100) tube amp head delivers massive sound and rock-solid reliability in great condition. Powered by four EL34 tubes and four ECC83 preamp tubes, the S1-100 pumps out 100 watts of pure valve-driven power, perfect for stage or studio. Featuring Blackstar’s signature ISF (Infinite Shape Feature) control, it seamlessly shifts from British crunch to American high-gain tones. The amp includes four footswitchable channels—Clean Warm, Clean Bright, Crunch, and Super Crunch—plus a built-in master volume and presence controls for total tone shaping. With MIDI switching capabilities and a professional-grade effects loop, the S1-100 is ideal for versatile playing styles. Cosmetically and functionally, this unit is in great shape, with only minor signs of use and no issues affecting performance. Don’t miss this chance to own a powerhouse amp head at a fraction of the new price.