While both models excel in power and quality, the TOPPING PA7 Plus stands out with its higher output capacity, lower distortion, and impressive signal-to-noise ratio (SNR). The TOPPING PA7 Plus can generate an impressive output of up to 300W per channel, ensuring ample power for demanding audio setups. The TOPPING PA7 outputs 210W per channel. The TOPPING PA7 Plus maintains an exceptional SNR performance of up to 127dB, guaranteeing a pristine and immersive audio reproduction, while the TOPPING PA7 maintains an SNR value of 126 dB.