Thock vs Clack: Mechanical Keyboard Sound Explained

When you get into mechanical keyboards, you quickly come across words such as thock, clack, poppy, creamy and marbly.

Of all these terms, thock and clack are probably used most often.

But what exactly is the difference between a thocky and a clacky keyboard?

Thock usually refers to a deeper, lower and fuller sound, while clack generally describes a brighter, sharper and higher-pitched sound.

However, the final sound is never determined by one component alone. Switches, keycaps, plate, case, mounting style, foam, stabilizers, desk mat and even your typing style all have an influence.

Quick explanation

Thock = deep, low and full. Clack = bright, high and direct. Neither is technically better. They are different sound signatures created by the complete keyboard build.

1. What does thock mean?

Thock is an informal term for a keyboard sound often described as:

• deep;
• low-pitched;
• full;
• rounded;
• heavy;
• less sharp.

The word essentially tries to imitate the sound itself: “thock”.

2. What does clack mean?

Clack usually describes a sound that is:

• brighter;
• higher-pitched;
• sharper;
• more direct;
• crisper.

Here too, the word somewhat imitates the actual sound: “clack”.

3. Are thock and clack official technical terms?

No.

They are community terms.

There is no official specification where a manufacturer can measure that a switch is, for example, “72% thocky”.

They are used to describe a general sound character.

4. Is thock vs clack objective?

Only partly.

Pitch and frequency can technically be measured, but words such as thocky and clacky remain subjective.

What one person experiences as thock may be called creamy, marbly or simply deep by someone else.

5. What is the biggest difference?

Characteristic	Thock	Clack
Pitch	Lower	Higher
Character	Deep / full	Bright / sharp
Impact	Rounded / heavy	Direct / hard
Resonance	Often warmer	Often brighter
Preference	Subjective	Subjective

6. Does thock or clack mainly come from the switch?

No.

The switch is important, but it is only one part of the sound.

The same switch can sound completely different in two keyboards.

This is because the rest of the build also affects vibration and resonance.

7. Which components determine keyboard sound?

The main factors include:

• switch;
• keycaps;
• plate;
• PCB;
• case;
• mounting style;
• foam;
• stabilizers;
• desk mat;
• surface;
• typing style.

8. How does a switch make the sound deeper or brighter?

Switch sound is influenced by:

• upper housing;
• bottom housing;
• stem;
• stem pole;
• spring;
• lubrication;
• internal tolerances.

These parts determine how the impact and resonance of bottom-out and top-out sound.

9. What is bottom-out?

Bottom-out is the moment when you fully press the switch and the moving parts reach their lower stop.

This is often one of the most important sounds of a keyboard.

A deep bottom-out can contribute to thock, while a hard and sharp bottom-out is more often perceived as clacky.

10. What is top-out?

Top-out is the sound when the stem returns upward after release and reaches the upper stop.

A switch can, for example, have a deep bottom-out but a fairly bright top-out.

That is why a switch does not have one single pitch.

11. Can a switch be thocky and clacky at the same time?

Yes.

A switch can, for example:

• have a deep bottom-out;
• have a bright top-out;
• produce a poppy spacebar;
• resonate differently across rows.

That is why the boundaries between sound categories are not always clear.

12. What influence does housing material have?

Housing material can have an influence, but material alone does not fully predict the sound.

Common materials include:

• nylon;
• polycarbonate;
• POM;
• proprietary blends.

The thickness, shape and internal geometry of the housing are also important.

13. Is nylon always thocky?

No.

Nylon is often associated with a softer and deeper sound.

But a nylon switch can still sound bright if the rest of the design causes it.

14. Is polycarbonate always clacky?

No.

Polycarbonate is often associated with a brighter sound, but this is not a fixed rule either.

Stem design, housing shape and keyboard construction can strongly change the result.

15. What influence does the stem have?

The stem affects how and where the switch reaches bottom-out and top-out.

Important factors are:

• stem material;
• stem length;
• pole length;
• contact surface;
• tolerances.

16. Are long-pole switches more clacky?

They can often sound more direct or poppy.

In many designs, a long-pole stem contacts the bottom housing earlier and harder.

This can create a clear impact that is perceived as clacky.

But long-pole does not automatically mean clack.

17. Can long-pole switches also sound thocky?

Yes.

The housing, pole construction, keycaps and keyboard case can still give the impact a deeper sound.

A long-pole switch can therefore sound clacky, poppy, marbly or deep.

18. Does spring weight matter?

Yes, but usually indirectly.

A heavier spring can push the stem back upward harder and change top-out.

Your typing style may also change when using lighter or heavier switches.

However, switch weight does not automatically determine whether something sounds thocky or clacky.

19. Does lubrication matter?

Yes.

Properly applied lube can:

• reduce scratch;
• reduce spring noise;
• soften contact sounds;
• make the sound cleaner.

This can make a sharp switch sound slightly warmer or fuller.

20. Can too much lube create thock?

No.

Too much lube can instead make a switch sound and feel:

• mushy;
• slow;
• too muted;
• inconsistent.

More damping is not automatically the same as more thock.

21. What influence do keycaps have?

A lot.

Keycaps act as small resonant chambers above each switch.

Important factors are:

• material;
• thickness;
• profile;
• height;
• internal space.

22. Does PBT sound more thocky than ABS?

PBT is often associated with a fuller or slightly deeper sound.

ABS is regularly described as brighter.

But thickness and profile can be just as important or even more important than material.

23. Do thick keycaps create more thock?

They can make the sound fuller and less sharp.

But this also depends on:

• material;
• profile;
• switch;
• keyboard construction.

24. Does keycap profile matter?

Yes.

Cherry, OEM, SA, MT3, XDA and other profiles have different shapes and internal volumes.

A tall SA keycap can, for example, resonate completely differently from a low Cherry-profile keycap.

25. What influence does the plate have?

The plate largely determines how vibrations from the switches spread through the keyboard.

Common materials include:

• steel;
• brass;
• aluminum;
• FR4;
• polycarbonate;
• POM.

26. Are metal plates more clacky?

Stiffer metal plates are often associated with a brighter and more direct sound.

But a metal plate does not automatically make a keyboard clacky.

Case, foam and mounting style can strongly change the sound.

27. Are softer plates more thocky?

More flexible materials such as polycarbonate or POM can sometimes create a softer or warmer character.

But again, the complete build is more important than one material.

28. What influence does the case have?

The case is a large resonant chamber around the PCB and plate.

Important characteristics include:

• material;
• internal space;
• wall thickness;
• weight;
• shape;
• acoustic cavities.

29. Does aluminum automatically sound clacky?

No.

An aluminum case can sound bright and direct, but a heavy aluminum case with foam can sound very muted or deep instead.

Construction matters more than simply the word aluminum.

30. What does foam do?

Foam absorbs some vibration and resonance.

It can:

• reduce hollow sound;
• soften high frequencies;
• reduce case resonance;
• make the sound cleaner.

31. Does a lot of foam automatically make a keyboard thocky?

No.

Too much foam can also make a keyboard sound flat or dead.

A deep sound does not come simply from adding as much damping as possible.

32. Can less foam create more clack?

Yes.

With less damping, more natural plate and case resonance remains audible.

This can give a build more brightness and character.

But without enough control, it can also become hollow or metallic.

33. Does mounting style matter?

Yes.

Mounting styles such as:

• tray mount;
• top mount;
• gasket mount;
• burger mount;
• o-ring mount

transfer vibrations differently.

This changes both feel and sound.

34. Is gasket mount automatically thocky?

No.

Gasket mount can provide a softer typing feel, but that does not automatically mean a deeper sound.

A gasket keyboard can just as easily be built to sound bright and clacky.

35. Does a desk mat matter?

Yes.

A soft desk mat absorbs vibrations between the keyboard and desk.

This can make a hard, bright build sound slightly softer or less resonant.

36. Does a keyboard sound clackier on a hard desk?

Often yes.

A hard surface can reflect vibrations more strongly.

The same build can therefore sound louder, brighter or sharper than it does on a thick desk mat.

37. Does typing style affect thock vs clack?

Very much.

Heavy bottom-out typing creates more impact than very light typing.

The same switch can therefore sound different for two people.

38. Are linear switches better for thock or clack?

Both.

Linear switches have no tactile bump or click mechanism, making bottom-out and top-out clearly audible.

Depending on design and build, linears can sound either very thocky or very clacky.

39. Are tactile switches more thocky?

Not automatically.

Tactile switches add a tactile bump and leaf interaction.

They can sound deep, bright, poppy or somewhere in between.

40. Where do clicky switches fit?

Clicky switches have an additional mechanism that intentionally produces sound.

This often makes the click more dominant than the normal thock or clack character of bottom-out.

41. What is poppy?

Poppy is usually used for a short, clear and energetic impact.

As a description, it often sits somewhere between clacky and marbly.

Many long-pole switches are described as poppy.

42. What is marbly?

Marbly usually describes a smooth, rounded and distinct impact sound reminiscent of marbles tapping together.

It can be relatively deep, but does not have to be as low-pitched as traditional thock.

43. What does creamy mean?

Creamy is often used for a smooth, soft and fairly uniform sound.

It does not only describe pitch, but also how consistent and smooth the keyboard sounds.

44. Are these sound terms universal?

No.

There is no official boundary between:

• thocky;
• clacky;
• poppy;
• marbly;
• creamy.

They often overlap.

45. What does a typical thocky build sound like?

A typical thocky build is often described as:

• low-pitched;
• full;
• little metallic resonance;
• rounded bottom-out;
• relatively soft top-out.

46. What does a typical clacky build sound like?

A typical clacky build is often described as:

• higher-pitched;
• bright;
• direct;
• pronounced bottom-out;
• crisp top-out.

47. What specifically makes a switch thocky?

A combination of switch materials, stem design, bottom-out, top-out, spring and lubrication can contribute to a deeper sound.

For the full explanation: What Makes a Keyboard Switch Sound Thocky?

48. What specifically makes a switch clacky?

A pronounced impact, bright top-out, long-pole design and certain housing constructions can contribute to clack.

For the full explanation: What Makes a Keyboard Switch Sound Clacky?

49. Can you make a thocky keyboard clackier?

Yes.

You can experiment with:

• brighter-sounding switches;
• long-pole switches;
• thinner or brighter-sounding keycaps;
• a stiffer plate;
• less foam;
• a harder surface.

50. Can you make a clacky keyboard thockier?

Yes.

You can, for example, experiment with:

• deeper-sounding switches;
• thicker keycaps;
• more controlled damping;
• a softer plate;
• a desk mat;
• properly applied switch lube.

51. Should you change one component at a time?

Yes.

If you replace the switches, keycaps, foam and plate all at once, you will not know which component caused the difference.

Changing one variable at a time helps you understand much better how each modification affects the sound.

52. Are stabilizers important?

Yes.

Poor stabilizers can:

• rattle;
• tick;
• sound metallic;
• make large keys sound inconsistent.

This can make both a thocky and a clacky build sound less clean.

53. Why does the spacebar always sound different?

The spacebar is much larger than normal keycaps and contains more air volume.

It therefore amplifies certain frequencies much more strongly.

A spacebar can sound extremely thocky, clacky, hollow or poppy while the rest of the keyboard sounds different.

54. Are sound tests reliable?

They are useful as a reference, but not as an exact prediction.

A recording is affected by:

• microphone;
• microphone position;
• room acoustics;
• audio processing;
• desk;
• desk mat;
• typing force.

55. Why does the same keyboard sound different on YouTube?

Because a microphone and audio processing can capture the frequency spectrum differently from your ears.

Volume normalization, compression and EQ can also change the impression of thock or clack.

56. Can thock and clack be measured?

You can measure frequencies, volume and resonance.

But the labels thocky and clacky remain subjective interpretations of that sound.

There is therefore no official frequency at which a keyboard suddenly changes from clacky to thocky.

57. Is thock better for gaming?

No.

Sound signature itself does not have a meaningful influence on gaming performance.

For gaming, characteristics such as:

• actuation point;
• switch weight;
• reset;
• latency;
• comfort

are much more relevant.

58. Is clack better for typing?

No.

A bright or deep sound says nothing about how comfortably or accurately you can type.

Sound is mainly a preference.

59. Which should you choose?

That depends entirely on the sound you personally enjoy.

If you like...	Look toward...
Deep and full	Thock
Bright and direct	Clack
Short energetic impact	Poppy
Rounded and marble-like	Marbly
Smooth and soft	Creamy

60. Common mistakes

• Thinking thock is automatically better.
• Thinking clack means a keyboard sounds cheap.
• Blaming one material for the complete sound.
• Thinking nylon is always thocky.
• Thinking polycarbonate is always clacky.
• Automatically equating long-pole with clack.
• Expecting a sound test to sound exactly the same in your own setup.
• Underestimating the influence of keycaps, plate and case.

Conclusion

Thock and clack describe two different directions within mechanical keyboard sound.

Thock is generally deeper, lower and fuller, while clack usually sounds brighter, higher and more direct.

But no single switch, housing material or keyboard component determines this completely on its own.

The final sound is created by the combination of switches, keycaps, plate, case, mounting style, foam, stabilizers, surface and typing style.

That is why there is no objectively best sound.

What matters most is which sound you personally enjoy and how all the parts of your keyboard work together to create it.