Speaker Sweep Test

Sweep smoothly from 100Hz to 8kHz to check the whole range for crackle, distortion or noise.

Frequency sweep test

Sweeps smoothly from 100Hz to 8kHz to check the whole band for distortion or crackle.

Current frequency -

100Hz – 8kHz -

Start frequency sweep

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Frequency sweep in detail

The sweep rises smoothly from 100Hz to 8kHz, covering bass, mid and treble. Listening to the whole run lets you spot crackle, noise or a missing band in your speakers or headphones.

How to test efficiently:

Close your eyes and listen the whole way for stutters, pops or drop-outs.

If some frequency “crackles”, note it — that’s your diagnostic starting point.

Lower the volume first so the treble end isn’t a shock to the ears.

Cross-check against a frequency-response curve to tell real peaks and dips from resonance.

Polarity tip: hollow low-mids after rewiring often mean reversed polarity — A/B the sweep before and after re-crimping.

Frequently asked questions

Why does a certain frequency suddenly buzz or crackle?

Note the frequency — it may be a piece of the desk or case physically resonating, or the driver distorting at that band. Cut it with a system equalizer for an instant improvement.

Sound disappears as the sweep reaches high frequencies?

It could be your hearing rolling off at that band (high-frequency perception falls with age), or the speakers simply can’t extend up there. Cross-check with the frequency response.

Volume swells and dips mid-sweep?

Common from driver-and-cabinet resonance peaks, or compression on that band. Compare against a frequency-response curve to spot real peaks and dips.

Does the sweep need my full attention?

Yes. It’s a single smooth tone from low to high — close your eyes and listen the whole way for stutters, pops or a drop-out that pinpoints a problem band.