When you listen to music with your eyes closed in the living room, does it sound like you're hearing great music in a concert hall? This high-end power amplifier was developed under the concept of delivering "True Sound" to listeners. With new-generation Si transistors used in every stage, the B-1a features superior characteristics close to what is obtained from triodes. The heat sink and chimney, marked with the circuit symbol for an Si transistor, is placed at the center for effective cooling performance. The heavy-duty power supply combining a large power transformer with choke coil, the minimum-distance circuit layout fabricated using heavy-gauge single-crystal silver wire manufactured to the most demanding standards, and other factors make the B-1a a product incorporating unique creativity.