Aurora Sound is a handmade amplifier builder's workshop located in Yokohama, a city of sea and ports. An audiophile with a deep love for music who plays guitar as a hobby, he developed and released his products while creating the audio equipment he truly wanted. His meticulous, faithful to the basics, yet bold design approach involves carefully handcrafting each internal structure, conducting physical and electrical measurements, and ultimately assembling the product based on judgment by ear. His approach to building audio equipment like a craftsman who makes musical instruments is based on his philosophy that amplifiers should be works of art, not just manufactured products.