The TranZformer LLX is apis exclusive EQ and Boost (preamp) circuits in compact effector size. The EQ is tuned to match the base. Sized to fit in pedal boards and designed to work with standard 9V (~18V) power supplies. This product is a long-awaited musical instrument product with a 2510 opp amplifier installed on the large console and API sound weaving from API output custom trans. Works with both guitar/bass, giving you great "api sound". Api2510 Opamp • api original output transformer • 3-band EQ with ±15dB gain • Opamp overdrive circuit • 40dB gain • -20 dB output pad • Buffered bypass