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Bass / Subwoofer Test

20–250Hz bass test. Web Audio API.

🔊 Bass / Subwoofer Test

Test low-frequency response. Isolate each bass frequency to find rattles, check subwoofer crossover, or dial in your EQ.

Keyboard: 1-0 = freqs, Space = sweep, Esc = stop

🛒 Test complete? Check these recommendations

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As an Amazon Associate we earn from qualifying purchases. Prices as displayed on Amazon.

💡 Frequently Asked Questions

What is a bass / subwoofer test?▼
This tool plays isolated low frequencies (20–250Hz) to test your subwoofer and bass response. It helps you check if your subwoofer is working correctly and if bass frequencies are balanced.
What frequency should a subwoofer play?▼
A typical subwoofer handles 20–200Hz. The crossover point with main speakers is usually 80–120Hz. If you hear distortion or rattling at specific frequencies, check your subwoofer placement and settings.
Why is my subwoofer rattling during the test?▼
Rattling can be caused by: loose objects near the sub, port chuffing at high volumes, damaged cone surround, or room resonance. Try repositioning the sub or lowering the volume.