BAJAAO India presents the Tech 21 Power Engine 60, an open-backed 1x12, 60W powered extension cabinet designed to be used with any guitar or bass preamplifier/direct box/combo amplifier. It is not a standalone piece; however, it can be combined with any discrete preamplifier. You don't have to tweak your usual settings or presets. Just plug into the Power Engine and go. It has a level control, 3-band active tone control, 1/4" input, and balanced XLR input and output. You can daisy-chain any number of Power Engine 60s together for the really big gigs. This ampliified cabinet is perfect if you already use a processor that does amp modeling for you and you don't want your amplfier to colour your tone further.
Tech 21 Power Engine 60 Specifications: