Brand: Mark Levinson
I'm sorry, but I'm not sure which Mark Levinson product you're referring to. The number 23 doesn't correspond to any specific product in the Mark Levinson lineup. Mark Levinson is a high-end audio brand under the parent company, Harman, that produces a wide range of audio components including preamplifiers, amplifiers, digital-to-analog converters (DACs), and CD players, among others. If you're looking for more information about their products, I would suggest visiting their official website or contacting their customer support for assistance.