Thocky vs. Clacky: What Actually Makes a Keyboard Sound Deep
“Thock” and “clack” describe the pitch of your keystrokes. Here's what actually controls that sound — and the cheap changes that make a board go deeper.
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Ask ten people what "thock" means and you'll get ten answers, but they're all circling the same idea: thock is a deep, low-pitched keystroke; clack is a higher-pitched, sharper one. Neither is "better" — but most of the hobby chases thock, and the good news is that sound is mostly tunable. Here's what actually controls it.
Pitch is the whole game
When people say a board sounds "thocky," they mean the dominant frequency of each keystroke is low. "Clacky" boards ring higher and sharper. Everything below is a lever that pushes the pitch up or down.
The biggest levers (in rough order of impact)
- Keycap material and thickness. Thick PBT caps generally sound deeper and fuller than thin ABS. Thicker walls = lower pitch. This is often the single most audible change.
- The case and mounting. A gasket-mounted board or one with sound-dampening foam sounds softer and deeper than a rigid tray-mount aluminum case that rings. Plastic cases often sound "thockier" than bare aluminum.
- Foam and mods. Case foam, plate foam, and the PE-foam mod kill hollow, pingy resonance and deepen the sound. (More on mods in our tuning guide.)
- Switches. Linear switches tend to sound smoother and rounder; some "marbly" linear switches are prized for thock. Tactiles and clickies add higher-frequency noise.
- Plate material. Softer plates (POM, FR4) sound deeper than a stiff aluminum plate.
- Typing style. If you bottom out hard, you'll hear more of the case; a lighter touch changes the character entirely.
The cheapest path to a deeper board
You don't need a new keyboard. In rough value order:
- Swap to thick PBT keycaps. Biggest bang for the buck.
- Add foam / do the tape mod (a strip of painter's tape on the underside of the PCB). Nearly free.
- Lube the switches and stabilizers to remove rattle and scratch.
- Only then consider a new switch or a different case.
The honest take
"Thock" is a sound preference, not a spec you can buy off a box. Two boards with the same switches can sound completely different based on case, caps, and foam. Trust your ears, change one variable at a time, and chase the pitch you like — that's the entire hobby in one sentence.