Yamaha 70 is a high-performance stereo power amplifier that delivers superior sound quality and versatility for audio enthusiasts. With its Hyperbolic Conversion Amplification Circuit, it eliminates drawbacks of previous Class A operation amplifiers, providing consistent performance over its entire power range. The Advanced Power Supply Circuitry ensures stable voltage, improving power supply to the amplifier. It supports up to three pairs of speakers, allowing for flexible speaker setups.