250 W RMS, an 8" woofer and RoomFit for serious bass control
WiiM Sub Pro is an active network subwoofer with room calibration and DSP controls for both WiiM systems and equipment using an RCA sub output.
The single WiiM Sub Pro is designed to do more than add level at the bottom end: it combines a 250 W RMS Class-D amplifier, a custom 8" driver and app-based adjustment through WiiM Home. Rated response is 35-200 Hz within ±3 dB, with extension to 25 Hz at -10 dB, so deep bass can be managed alongside level, phase and crossover.
Key features
- 250 W RMS continuous Class-D amplification
- Custom 8" woofer with a quoted maximum of 104 dB SPL
- 35-200 Hz ±3 dB response with 25 Hz extension at -10 dB
- AI RoomFit for automatic in-room bass calibration
- Dedicated 10-band parametric equaliser for low frequencies
- App control of crossover, phase, level and latency
- Wi-Fi 6, Ethernet and Bluetooth 5.3 LE connectivity
- Mono RCA input for integration with third-party electronics
How it differs from a conventional active subwoofer
Sub Pro puts network control inside the sub itself. When paired wirelessly with compatible WiiM products it can be associated and adjusted from the app without depending on the amplifier menu for every parameter; in a non-WiiM system, the RCA input keeps it usable as a conventional powered subwoofer.
RoomFit and PEQ solve different problems
RoomFit uses the microphone in a mobile device, or a compatible external microphone, to measure the room and build an automatic correction. The 10-band PEQ is for targeted manual changes afterwards, allowing individual bass regions to be refined rather than relying on one overall volume control.
Crossover, phase and latency remain adjustable
Crossover frequency determines how much low-frequency work stays with the main speakers, while phase helps align the subwoofer around that transition. Latency adjustment matters in wireless and multi-room systems, where successful integration depends on bass arriving at the correct time as well as at the desired level.
Wireless with WiiM, universal through RCA
Wi-Fi 6 provides network integration with supported WiiM streamers, amplifiers and speakers, while Ethernet offers a wired alternative. If an amplifier or source has a standard subwoofer output, the mono RCA socket lets Sub Pro operate in a traditional signal path while RoomFit and equalisation remain available for tuning.
