Accessories: Pots (50kΩ x 3) Trimmer Pot (100kΩ x 1) Battery Snap Output Jack Premium Bass Parts by tetsuya is the ultimate pickup & assembly born to create the perfect tetsuya sound. An active 3-band EQ that covers a wide range of frequencies. The bass is centered around 100Hz with ±15dB, the middle is centered around 450Hz, leaning towards low-mids, with ±9dB, and the treble is centered around 5kHz with ±12dB, each boosted & cut. While utilizing the original tone of the instrument, intuitive sound making is possible without stress, from tight sounds to warm sounds. The use of the trim pot also allows for adjustment of the output gain from 0dB to +9dB, and can be used like a buffer or booster. Compatible with both passive and active pickups. It can be used as a circuit on its own, but by using it with a pickup set, you can get a more perfect sound.