Amp Pro
amplifier
$399
Used market: $285*
Specifications
3 of 6 values have a recorded sourceExpert Audio Engineering Commentary
Headroom Notes
Everything that changed between the Amp and the Amp Pro is in front of the power stage: ES9038Q2M instead of ES9018K2M, Wi-Fi 6E instead of Wi-Fi 5, 120 dB SNR instead of 98. The amplifier rows are word-for-word identical, including the minimum impedance. If you are choosing between the two for loudness into a hard speaker, the manufacturer's own sheet says there is nothing to choose.
What the datasheet actually says
Quoted verbatim from the manufacturer’s own page, with the date we checked it. We state what is printed, not what anyone intended by it.
«Power Output — WiiM Amp: 60 Watts/channel at 8 ohms, 120 Watts/channel at 4 ohms. WiiM Amp Pro: 60 Watts/channel at 8 ohms, 120 Watts/channel at 4 ohms»
WiiM's comparison sheet puts the two models side by side and prints the same two power figures in both columns; the product pages then print the same minimum impedance of 2.67 ohms for both. The Pro differs in DAC, radio and measured analogue-output SNR, not in anything the power section publishes.
checked 8/5/2026* Estimated with the depreciation fallback (~71% retained value). · checked on 8/5/2026