Speaker Test Tones

Free online sound test for speakers, headphones, and subwoofers. Check stereo separation, frequency response, and polarity—right in your browser.

Subwoofer testing tools

Safety and Setup

  • Start low — 10–20% volume — before you play anything.
  • Keep high-frequency tests short. Don't blast them for long stretches.
  • For polarity and bass checks, sit centered between the speakers at a consistent distance.
  • Rattling or Buzzing? Turn the volume down and see if you have loose objects around you or unstable speaker placement.

Troubleshooting Quick Checks

  • No Sound at All? Look into browser audio permissions, the output device, and mute switches.
  • Left/right sounds swapped: check your OS audio balance settings and the physical cable wiring.
  • Bass sounds weak in "in phase" mode: your speakers might be wired out of phase, or placed too far apart.
  • Missing high tones: could be speaker limits, EQ settings, or just natural hearing roll-off — happens to everyone eventually.
Full testing checklist →
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Left / Right Stereo Test

Click Left or Right to send a test tone to just that channel. Click again to stop it.

ADVANCED CHALLENGE

High Frequency Limit Test

Most basic speakers top out around 15 kHz. Good gear pushes to 20 kHz. Let's see how far yours — and your ears — actually go.

Custom Frequency & Waveform Generator

Dial up sine waves, bass tones, pink noise, or white noise — handy for speaker burn-in or general testing.

Why Use Speaker Test Tones?

Setting up a home theater, testing studio monitors, or just checking new headphones — clean test tones are the fastest way to actually verify what you're hearing. They let you check frequency response, catch cabinet rattle, and dial in a subwoofer crossover without room reverb muddying the picture.