The LLX blends the renowned EQ circuit from API into a compact and multifunctional bass guitar pedal. It provides +/- 15dB of gain across three specific bass frequencies: 100Hz, 400Hz, and 2kHz. Users can toggle the gain stage between a clean boost and overdrive, enhancing the input OpAmp for richer tone. Additionally, the LLX is equipped with a buffered bypass, a -20dB output pad, a selectable peak/shelf option for higher frequencies, a transformer output, and, naturally, the iconic API sound.