Technical Specification
| WiiM Amp | WiiM Amp Pro | |
|---|---|---|
| Audio Amplification | TI TPA3255 | TI TPA3255 |
| Power Output | 60 Watts/channel at 8 ohms 120 Watts/channel at 4 ohms | 60 Watts/channel at 8 ohms 120 Watts/channel at 4 ohms |
| Main Purpose | Connected to passive speaker for streaming | Connected to passive speaker for streaming |
| Pair with a Sub | Y | Y |
| USB Port (Storage/Audio Out) | Y | Y |
| Wireless Connectivity | Wi-Fi 5, BT 5.0 | Wi-Fi 6E, BT 5.3 |
| Ethernet | Y | Y |
| DAC IC | ESS 9018 K2M | ESS ES9038 Q2M |
| Analog Out SNR | 98 dB | 120 dB |
| THD+N (Analog Out) | -92dB (0.0025%) at 5W | -105 dB (0.0005%) at 5W |
| Analog Input (ADC) | Up to 192k, 24 bit | Up to 192k, 24 bit |
| Google Cast Audio | Y | Y |
| Group with Nest speakers and Display | Y | Y |
| Group with Echo speakers and Display | Y | Y |
| Alexa Multiroom with UHD | Y | Y |
| Group with HomePods | Y | - |
| Works with Alexa | Y | Y |
| Works with Google | Y | Y |
| Works with Siri | Y | - |
| Group with WiiM devices | Y | Y |
| AirPlay 2 | Y | - |
| 2-Way Bluetooth | Y | Y |
| Roon Ready | Y | Y |
| DLNA | Y | Y |
| Spotify Connect & TIDAL Connect | Y | Y |
| Gapless Playback | Y | Y |
| EQ | 10-band Graphic EQ, 10-band Parametric EQ, 26 Preset EQ | 10-band Graphic EQ, 10-band Parametric EQ, 26 Preset EQ |
| Room Correction | Y | Y |
| WiiM Music Streaming Platform | Y | Y |
| CPU | Quad Core A53 | Quad Core A53 |
| DRAM | 512 MB | 512 MB |
| Flash | 512 MB | 512 MB |
| Audio Input Port | HDMI ARC, Line, Optical, USB Disk | HDMI ARC, Line, Optical, USB Disk |
| Audio Output Port | Speaker Out, Subwoofer, USB Audio Out | Speaker Out, Subwoofer, USB Audio Out |