Subwoofer Integration with SB Series Soundbars

When adding a powered subwoofer to your SB series soundbar, proper frequency coordination ensures optimal performance and seamless audio integration.


Compatibility Note: The SB380 and early versions of the SB400, SB500, and SB700 do not include a subwoofer output.


Recommended Settings:

  • Subwoofer crossover frequency: 85-95 Hz (good starting point - adjust to your liking)
  • ZVOX soundbar setting: PS-31 (80 Hz high-pass filter)


Benefits of PS-31 Setting: Setting your ZVOX soundbar to PS-31 provides two key advantages:

  1. Clean frequency transition - The 80 Hz cutoff creates a smooth handoff between your soundbar and subwoofer.
  2. Improved amplifier efficiency - By filtering out low frequencies, more power is available for the left, right, and center channels, enhancing dialogue clarity and overall performance.


To activate PS-31:

  1. Turn the speaker on.
  2. Press and hold both the Power button and Volume Up button on the right side of the speaker simultaneously.
  3. Hold for 5 seconds until "PS-#" begins flashing on the display.
  4. Immediately release both buttons and press the Volume Up button on the speaker, not the remote repeatedly until "PS-31" appears on the display, then wait for the display to stop flashing.



This configuration optimizes your system for the best possible audio experience when using an external subwoofer.




Still Need Help?

Please contact us at info@zvoxaudio.com or submit a new support ticket.