The Yamaha M-4 is a power amplifier that was produced in the late 1970s and early 1980s, characterized by its robust construction and fidelity. It employs a high-speed, high-damping factor design, which provides excellent transient response and low distortion. The M-4 is capable of delivering 100 watts per channel into 8 ohms, with a peak power output of up to 200 watts into 4 ohms. It features a fully complementary push-pull transistor output stage, ensuring consistent performance and efficiency. Additionally, the amplifier is equipped with multiple inputs and outputs, including balanced XLR and unbalanced RCA connections, making it versatile for various audio setups. The M-4 also includes protection circuitry to safeguard against overloads, ensuring longevity in use. Its aesthetic design is typical of Yamaha equipment from that era, featuring a brushed aluminum front panel and distinctive meters for output level monitoring. The unit's weight and build quality signify a solid construction, further enhancing its reputation among audio enthusiasts.
