Controlled starting point
The initial +6 dB shelf and −6 dB preamp emphasize bass without beginning above the original peak ceiling.
Bass booster online
with controlled headroom
Start with a +6 dB low shelf centered at 320 Hz and a −6 dB preamp, then compare, adjust, and export in the browser.
+6 dB starting boost−6 dB preampA/B comparison
You can also drag and drop an audio file anywhere on this page.•Input compatibility depends on the browser decoder: MP3 and WAV; other formats depend on your browser
A bass-focused workflow, not another generic equalizer page
The starting curve raises frequencies below the 320 Hz shelf relative to mids and highs. A matching −6 dB preamp creates headroom before the boost. You can still adjust the three fixed bands and listen with the tone filters bypassed.
Shared DSP
The tool reuses the same tested three-band filters for preview and export.
Visible curve
The calculated response graph shows how the current bass, mid, and treble values shape the signal.
Clipping, headroom, and audible limits
- The clipping indicator is conservative; overlapping frequencies and source phase can change the real result.
- Extra bass cannot recreate low frequencies that are absent from the recording.
- Small speakers may not reproduce the boosted range and can distort at high playback volume.
- This is a fixed three-band EQ, not a parametric equalizer, compressor, or limiter.
Where a bass-focused curve can help
- Give thin music a warmer low-frequency balance.
- Compare a bass-forward version with the original before export.
- Reduce mids or treble after the starting preset when the low end needs more relative emphasis.
Bass processing stays in the browser
The selected audio is decoded, previewed, and rendered in browser memory. It is not uploaded to the application server for the bass effect. Site resources and consented analytics may still make network requests.