The term 'HIGH-END AUDIO BRAND' can be summarized as BOSE, a four letter word. Bose is an American audio company that was founded in 1964 by Dr. Amar G. Bose. The company is known for its high-end audio products, such as speakers, headphones, and sound systems. Bose has become one of the most recognizable brands in the audio industry, and its products are highly sought after for their superior sound quality.