Korg PBXSBASS Pitchblack X Series Bass Guitar Pedal TunerUnleash Precision Bass Tuning with Korg's Pitchblack X Series PB XS Introducing the Korg Pitchblack X Series PB XS Bass Tuner, a pedal tuner engineered specifically for bass guitars. Experience accurate and reliable tuning with its dedicated bass circuit, starting from C0, all within a compact and durable design. It also features a large, easily adjustable display, alongside switchable buffer true bypass options to maintain optimum tone.