This model is designed based on the "TWENTY-FOUR" from the Bacchus HANDMADE Series, which was unfortunately discontinued. It's a guitar that showcases a dedication to its body shape and pickguard. With its original body shape and deep cutaway, you can enjoy smooth playing without stress, even on the high frets. This is an active bass with 24 frets, making it recommended for technically-minded bassists. Equipped with humbucker pickups and an active circuit, it allows for a wide range of sound creation. The mini-switch allows you to turn the preamp ON/OFF. 【Functions of Each Part】 Volume: Adjusts the volume. Turning clockwise increases the volume. Balancer: Adjusts the output balance between the front and rear pickups. The center position balances the front and rear, turning clockwise increases the front, and counterclockwise increases the rear. Master Tone: Adjusts the tone. Effective whether the preamp is on or off. Treble: Equalizer. Adjusts the boost value of the treble when the preamp is on. Bass: Equalizer. Adjusts the boost value of the bass when the preamp is on. Preamp ON/OFF Mini-Switch: Switches the preamp ON/OFF.