Hartke KB12 Kickback 500W 1x12 Bass Combo Amp Dipped Sticks The main difference is that

The main difference is that the Pro-Neo-D01 is passive

Contains everything you need to make using your Yamaha portable keyboard just that much more enjoyable

This unit has an improved faceplate layout and nicer look

Constructed for ideal sound and power

Hartke KB12 Kickback 500W 1x12 Bass Combo Amp Dipped Sticks The main difference is thatHartke has revamped its acclaimed Kickback 12 Bass Combo with a new high powered, lightweight design. Retaining the classic enclosure, the Kickback KB12 now features Hartke's patented Hydride Speaker Technology. With 500 watts of Class D power, the Kickback KB12 is ruggedly portable and delivers serious bass tone that cuts through the mix. Features: Lightweight Class D amplifier that weighs 28lb 500 watts of power 12" Hydride paper aluminum hybrid