This is a 450 watt (400 RMS speaker) bass cabinet with a 15" Eminence speaker and a tweeter. The top can easily be snapped off and reclamped on for attaching and carrying an Ampeg Portaflex. or similar small sized bass amp, or just used as is with no difficulty. It has a beautiful tone. I am clearing out excess gear and only selling to make space. This has been gigged several times but is durable and has been well cared for. Not looking for trades.