Purchased around 2009. Used a few times a year for concerts and outdoor stages. This is a set of two. Only one has casters. 2X10 Custom Neodymium 1 tweeter. Power handling-400 Watts / 8Ω Frequency response 40Hz-15KHz Sensitivity 100dB Weight: 18kg - Brand: Bergantino - Model: Bass Cabinet - Number of Speakers: 2 - Terminals: Input, Output - Cabinet Type: Stacked Thank you for viewing. Feel free to ask any questions in the comments.