A guitar speaker cabinet is typically a wooden box that contains one or more guitar speakers. The smallest guitar cabinets are designed for private practice and would typically have an 8" speaker. Some cabinets designed for rehearsals and small- to mid-size venues contain two 10" or 12" speakers. Another popular format is four 10" or four 12" speakers. Some performers use two 4x10" or 4x12" cabinets.
A guitar cab is normally used with a Guitar amp head, like the JOYO bantamp.