Yamaha A-S201, two channel, Hi-Fi amplifier up to a total of 2 x 100W at 8Ω and high dynamic power per channel 125W at 8Ω, 150W at 6Ω, 165W at 4Ω and 180W at 2Ω.
The M2si delivers 72 watts per channel into 8 ohms and 137 watts into 4 ohms. This means the M2si will drive a wide range of speakers, even power-hungry models.
One Plus PRO, integrated power amplifier 2 x 85W RMS / 8Ω, 2 x 108W RMS / 4Ω, class D, with a very small size ideal for Hi Fi systems and permanent installations in professional spaces.