Brand: AMC
I do not have physical attributes or the ability to be a specific entity. However, based on the given information, "amc 3150a" likely refers to a specific audio-visual component model, produced by the entertainment technology company aMC (originally known as american motors corporation). Without further context or details provided, I am unable to determine the exact nature or features of this product. It's best to consult the manufacturer's documentation or contact an authorized dealer for more information.