A buffer amplifier that converts a high impedance signal into a low impedance signal. By switching between the guitar mode and the bass mode, you can play heavy and squishy on the guitar, and even the low B of the 5-string bass on the bass. In order to aim for a natural, powerful and cohesive sound, Nichicon\'s highest-ranked KZ for electrolytic capacitors, Shin Nihon Radio\'s MUSES8920D for operational amplifiers, and Arcotronics\' KEMET R82 for film capacitors are ideal for internal parts. Carefully selected. With a compact housing of 39 mm in width x 93 mm in depth x 33 mm in height (including protrusions with jacks), it can be installed in a narrow space inside the board. There are three color variations: Blue, Greeeen, and Red.