This tutorial will guide you through tuning the subwoofer settings on your WiiM device to enhance your listening experience.


A well-tuned subwoofer blends naturally with your main speakers, creating bass that feels like an extension of the overall sound rather than a separate element. Proper tuning allows the bass to match the acoustics of your room and your listening preferences.


Remember to tune subwoofer settings while listening to a piece of music or content you're familiar with, as this will help you discern the changes in sound quality more effectively.


Steps to Tune Subwoofer Settings on WiiM Devices

 

Follow these steps to tune your subwoofer settings and ensure optimal sound quality:


Step 1: Start with Default Subwoofer Settings


Begin by using the default settings, as they are generally optimized for most setups. For example, a crossover frequency set at 80 Hz is a commonly used and works well with most speaker systems.


Step 2: Use the LFE Input


Follow these steps:

  1. Connect your subwoofer to the LFE (Low-Frequency Effects) input.

    The crossover knob on the subwoofer (like the Gravis I) will not affect the LFE input, so you don't need to adjust it.

  2. Set the LFE level to around 50% for a balanced output.


Step 3: Adjust Subwoofer Level in the WiiM Home App


If the subwoofer sounds too loud, adjust the subwoofer level within the WiiM Home App. This is more convenient than adjusting the subwoofer directly.


Step 4: Test the Phase Switch


Follow these steps:

  1. Try the phase switch at both 0° and 180°.

  2. Keep the setting that produces louder bass.

  3. After setting the phase, re-adjust the subwoofer level if needed.


Step 5: Sync Subwoofer and Speakers


When your WiiM device connects to both a speaker and subwoofer, it assumes equal delay in both audio paths. However, if the speaker or subwoofer applies additional audio processing, this can introduce a slight delay. This timing mismatch may cause high and low frequencies to sound out of sync, impacting overall audio quality.


To ensure a seamless, balanced sound experience, use the Subwoofer & Speakers Sync feature to detect and adjust these timing differences:

  1. Open the Subwoofer & Speakers Sync setting in the WiiM Home App.

  2. Choose Start Automatic Sync or Manual Delay Adjustment to fine-tune the latency.


Normally increase the Main Speaker Output Latency setting by adding roughly 1 ms for every 34 cm (approximately 12 inches) of distance difference between the subwoofer and the speakers.

Louder bass usually indicates better sync. Fine-tune the latency until the bass sounds optimal.


Step 6: Perform WiiM Room Correction


Go back to the Device Settings in the WiiM Home App, and then select Room Correction to smooth out any remaining frequency response issues. This step helps optimize the overall sound quality.


If you later decide to lower the crossover frequency, disable Room Correction first, and re-run Room Correction after adjusting the subwoofer settings to ensure your system is optimized for the new configuration.