That deep, satisfying thock thock thock sound is the holy grail of the mechanical keyboard hobby. Whether you're new to custom keyboards or looking to upgrade your existing build, achieving a thocky sound signature doesn't have to cost a fortune. Here are 6 proven steps to transform your keyboard's acoustics — from scratchy and clacky to deep, muted, and incredibly satisfying. 🎶
1. Choose the Right Switches for a Thocky Sound
Your switches are the single biggest factor in your keyboard's sound profile. Not all switches are created equal when it comes to thock. For the deepest, most satisfying sound, look for:
- Linear switches — smooth keystroke with no tactile bump means the sound is cleaner and more focused. Popular thocky linears include Gateron Yellow, Gateron Oil King, Boba U4T (tactile but thocky), and Durock L7.
- Heavier spring weight — heavier springs (62g+) tend to produce a deeper, more authoritative sound on the upstroke.
- Long-pole stems — switches with longer stems bottom out earlier, reducing the hollow echo that creates clacky sounds.
If you're building from scratch, switch selection is where to invest first. The right switch makes every other step easier.
2. Lube Your Switches (This Makes a Huge Difference)
Lubing switches is one of the highest-impact modifications you can make to a mechanical keyboard. Unlubed switches sound scratchy and thin. Properly lubed switches sound smooth, deep, and thocky.
What to use:
- Krytox 205g0 — the gold standard for linear switches. Thick, long-lasting, and produces a buttery smooth sound.
- Krytox 105 oil — for switch springs to eliminate spring ping (that metallic ringing sound).
- Tribosys 3203 — a lighter option suitable for tactile switches where you don't want to kill the bump.
How to lube: Open each switch, apply a thin layer of lube to the rails, stem legs, and bottom of the stem. Avoid lubing the tactile legs on tactile switches. Bag lube springs with a small amount of 105 oil for efficiency.
Yes, it's time-consuming. Yes, it's worth every minute.
3. Film Your Switches to Reduce Housing Wobble
Switch films are thin layers of material (usually PE film or PORON) placed between the top and bottom housing of a switch. They reduce wobble in the housing, which tightens the sound and makes it more consistent — a key component of that satisfying thock.
Films are inexpensive (a pack covers 70+ switches) and make a noticeable difference, especially on switches with looser tolerances. Simply open the switch, place the film on the bottom housing, and reassemble.
4. Choose a Gasket-Mount or Foam-Dampened Keyboard
The keyboard case and mounting style have a massive impact on sound. For thock, you want a case that absorbs sound rather than amplifying it:
- Gasket mount — the PCB and plate float on silicone gaskets, creating a bouncy, muted, deeply thocky typing feel. This is the preferred mount style for sound-focused builds.
- Top mount with foam — adding case foam (between the PCB and case bottom) and PE foam (between the PCB and switch pins) can dramatically dampen hollow resonance in budget boards.
- Avoid hollow aluminum cases without dampening — they amplify clack rather than producing thock.
5. Add Foam and Dampening Layers
Even if you can't change your keyboard's mount style, foam modifications can significantly improve your sound signature:
- Case foam — cut to fit inside the bottom of your case. Fills the empty air cavity that causes hollow, echo-y sounds.
- PE foam mod — a single layer of PE (polyethylene) foam placed between the PCB and switches. This is one of the most popular budget mods for achieving thock, often described as making keyboards sound "poppy" and deep.
- Tempest mod (tape mod) — apply masking tape to the back of the PCB. Free, reversible, and surprisingly effective at deepening keyboard sound.
6. Choose the Right Keycaps for Thock
Yes, keycaps affect sound too — significantly. The material, thickness, and profile all influence how a keyboard sounds:
- Thick PBT keycaps — denser and heavier than ABS, PBT keycaps produce a deeper, more muted sound. Thin ABS keycaps tend to sound higher-pitched and clacky.
- Cherry or MT3 profile — taller profiles with more material produce a fuller sound compared to flat profiles like XDA or DSA.
- Avoid thin doubleshot ABS if thock is your goal — the hollow top produces a sharp, high-pitched clack that works against you.
At Urelab, all our keycap sets are crafted from premium thick PBT material, making them an ideal choice for thock-focused builds. Our Cherry profile keycap sets in particular pair beautifully with linear switches and gasket-mount keyboards for a deep, satisfying sound signature. Not sure which keycap set to pick? Check out our guide on 5 Best Keycap Sets for Mechanical Keyboards for inspiration.
Quick Thock Checklist
- ✅ Linear switches with long-pole stems (e.g., Gateron Oil King, Durock L7)
- ✅ Lubed with Krytox 205g0 + spring lubed with 105 oil
- ✅ Switch films installed
- ✅ Gasket-mount case or foam-dampened top-mount
- ✅ PE foam mod or tape mod applied
- ✅ Thick PBT keycaps in Cherry or tall profile
The Bottom Line
Achieving a thocky mechanical keyboard sound is a combination of the right switches, proper lubing technique, smart dampening, and quality keycaps. You don't need to spend a fortune — many of these modifications cost just a few dollars and dramatically transform how your keyboard sounds and feels.
Before you start modding, it's also worth making sure your keycaps are compatible with your keyboard layout. Our Keyboard Layout & Keycap Compatibility Guide covers everything you need to know.
Start with the modifications that fit your budget, and build from there. Your ears (and everyone around you) will notice the difference. 🎵
Shop thick PBT keycap sets at Urelab → | Browse Cherry profile sets →
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