Wiim introduces the Sub Pro, marking its first wireless subwoofer.

      Wiim is experiencing a surge in activity at the moment. In addition to unveiling its inaugural wireless speaker, the Wiim Sound, and the new Amp Ultra, the wireless audio brand has also introduced its first wireless subwoofer, the Wiim Sub Pro. This device can connect either wirelessly or via a wired connection to Wiim's network music streamers and amplifiers, and the company claims its 250-watt class D amplifier will accurately reproduce frequencies down to 25Hz without distortion.

      Similar to its previous announcements, Wiim has yet to disclose pricing or specific release dates for the Sub Pro, only mentioning that it will be available starting in Q3 2025 on Amazon and at select retailers.

      Inside the polished, piano black casing, there is a down-firing 8-inch driver that expels air through a large horizontal slot that spans the cabinet. The subwoofer measures 15.7 x 11.8 x 12.7 inches and weighs 35.2 pounds, which is nearly identical to the weight of the first and second-generation Sonos Sub (36.3 pounds).

      When utilized wirelessly with other Wiim devices, the Sub Pro receives audio via Wi-Fi 6E or Bluetooth 5.3. Alternatively, it can be connected with a more stable network through the 10/100 Ethernet port. An RCA analog input allows the Sub Pro to be linked directly to any soundbar or component that features a dedicated sub output, while still enabling sub settings to be managed through the Wiim Home app.

      Regarding the Wiim Home app, it offers precise EQ adjustments, crossover tuning, phase control, latency customization, and subwoofer level settings. Additionally, you can utilize Wiim’s “RoomFit” AI-driven room calibration feature, which uses your smartphone to take acoustic measurements and then adjusts the bass to accommodate room size, speaker arrangement, and listening position.

      I had the opportunity to hear the Sub Pro during a brief demo in Markham, Ontario. It was wirelessly connected to a Wiim Amp Pro, which powered a set of impressive Klipsch floorstanding Reference speakers. While the Klipsch speakers already demonstrated strong low-end performance, it may not have been the perfect setting to highlight the Sub Pro’s bass capabilities, but it still contributed substantial extra bass.

      The demo encountered a few connectivity issues, and I’m uncertain if the room correction feature functioned as intended, so I will reserve judgment until I can test it in my own home with smaller speakers—potentially the Wiim Sound.

      One thing is certain: With the Sound, Sub Pro, and Amp Ultra, Wiim is progressively moving towards offering a comprehensive range of Sonos alternatives in its wireless audio collection. It wouldn’t be surprising to see Wiim utilize the Sub Pro as it explores further into home theater options.

      For those interested in detailed specifications, here is the official list:

      - 250-watt class-D digital amplifier

      - Driver size: 8 inches

      - Sensitivity: 104 dB SPL, 1W@1m

      - Frequency Range: 25-200 Hz, +/-3 dB for 30-200 Hz

      - Max Power: 250 watts, THD @1%

      - Analog RCA mono input

      - 10-band parametric EQ

      - Automatic room correction

      - Adjustable crossover frequency, level, phase, and latency

      - Wi-Fi 6E, 250b/g/n/ac/ax 2.4 GHz, 5 GHz, and 6 GHz triple bands

      - Bluetooth 5.3 with BT LE audio

      - Ethernet, 10M/100 Mbps