The MA500 amplifier has high power, deep dynamics, wide sound field, rich tone, and rich details. ● class AB design, high output performance. ● 32 carefully selected and paired high-quality transistors. ● Current mirror input provides more stable output throughout the entire dynamic range. ● Customized pure copper wire wound toroidal transformer with independent power supply for left and right channels. ● Large exposed radiator, fast heat dissipation, stable long-term performance. ● Advanced protective circuits effectively protect your audio equipment. ● Integrated power circuit with delay relay to eliminate power on/off impact. ● Metal chassis with good shielding properties.