Used API TranZformer Bass Effect Pedal - Guitar Center Enhance your tone with this used API TranZformer Bass Effect Pedal in excellent condition Built with signature API 2510 and 2520 op-amps, it delivers studio-quality EQ and compression tailored for bass Features include a 3-band EQ with selectable frequency points, switchable high-pass filter, and transformer output for rich warmth Ideal for live or studio use, this pedal brings unparalleled