GMK Detonator
Tone
Sweep
Gain Set
Frequency
40
Hz
Sweep Range
5s
Direction
Up ↑
Down ↓
Ping ↕
Gain Setting — Test Tones
Select a reference tone, set your gain to target, play at moderate volume. Increase amp gain until distortion, then back off slightly.
Sub Bass
40 Hz
Subsonic / ported box
Bass
50 Hz
Common sub freq
Mid Bass
63 Hz
Sealed / daily
Crossover
80 Hz
Crossover ref
HF Noise
1000 Hz
Clip detection
Deep Sub
33 Hz
Demo / SPL
± 1 Hz
● SLIDE TO ARM
Hold
Toggle
Timed
Volume
70%
A tone generator tool for the people.
About GMK Detonator
GMK Detonator is a free car audio frequency generator for SPL competitors and daily SPL chasers. Generate clean tones from 1 Hz to 1000 Hz, run frequency sweeps, set amplifier gains with built-in reference tones, and find your peak burp frequency. Includes slide-to-arm safety, hold/toggle/timed playback modes, and ±1 Hz fine tuning. Runs in any browser, no signup.
Other free GMK Audio tools: SlotStudio, Alternator Size Estimator, Wire Gauge Calculator, Subwoofer Sd Calculator.