How to Upgrade Your Keychron Keyboard Sound: Foam Mods, Plate Swaps, and Acoustic Kits
By Keychronus | Published: 2026-06-23
Category: How-to Guides
Learn how to enhance your Keychron keyboard's acoustics with foam mods, plate swaps, and acoustic kits. Discover tips to achieve a deeper, thockier sound.
Your mechanical keyboard isn't just a tool—it's an instrument. The sound it makes with every keystroke can transform your typing experience from mundane to meditative. Whether you're chasing a deep, creamy thock or a crisp, clacky pitch, upgrading your Keychron keyboard's sound is one of the most rewarding modifications you can make. In this guide, we'll walk through three proven methods: foam mods, plate swaps, and acoustic kits. By the end, you'll know exactly how to achieve the perfect acoustic signature for your setup.
Why Keyboard Sound Matters
Keyboard sound directly affects typing satisfaction, especially for long work sessions or competitive gaming. A well-modded board reduces hollow reverberations, minimizes ping, and creates a more premium feel. For Keychron users, the good news is that many models are built with modding in mind—hot-swappable PCBs, removable plates, and accessible interiors make upgrades straightforward. Even if you're a beginner, you can dramatically improve sound without soldering or voiding your warranty.
Method 1: Foam Mods—The Easiest Sound Upgrade
Foam mods involve adding sound-dampening materials inside your keyboard case to absorb unwanted echoes and vibrations. This is the most cost-effective and beginner-friendly upgrade, often costing under $10. Here's what you need to know.
Types of Foam for Keyboard Modding
- Poron foam (polyurethane foam): Soft, compressible, and excellent at absorbing high-pitched pings. It's commonly used in premium keyboards and aftermarket kits. Poron foam thickens the bottom-out feel slightly, making it ideal for a muted, thocky sound.
- Sorbothane: A viscoelastic material that excels at dampening low-frequency vibrations. It's heavier and more effective for reducing case resonance, but can be pricier and harder to cut.
- EVA foam (ethylene-vinyl acetate): An affordable alternative found in craft stores. It works well for reducing hollow sounds but may not be as durable as Poron.
- Neoprene: Water-resistant and slightly stiffer, good for adding weight and dampening without altering feel too much.
How to Apply the Foam Mod
- Disassemble your keyboard: Remove all keycaps, switches, and screws. Gently lift the top case from the bottom case.
- Cut foam to size: Trace the bottom case interior onto your chosen foam and cut with scissors or a craft knife. Leave space for screw holes and USB port cutouts.
- Place the foam: Press the foam sheet into the bottom case. For a case foam mod, place it between the PCB and the bottom case. For a plate foam mod, place it between the plate and the PCB.
- Reassemble: Carefully reattach the plate-PCB assembly, replace switches and keycaps, and test the sound.
Many Keychron users pair foam mods with a plate swap for maximum effect. For example, swapping the stock aluminum plate on a Keychron Q1 HE QMK Wireless Custom Keyboard - Copper Edition to a FR4 or polycarbonate plate can dramatically change the sound profile. The copper edition's brass weight already adds mass, but adding foam inside the case reduces any residual ping.

Method 2: Plate Swaps—Change the Tonal Character
The plate material in your keyboard has a huge impact on sound. It holds the switches in place and transfers vibration to the case. Swapping to a different plate is one of the most effective ways to customize acoustics without replacing switches.
Popular Plate Materials and Their Sound Profiles
| Plate Material | Sound Character | Flexibility | Recommended For |
|---|---|---|---|
| Aluminum | Bright, clacky, moderate resonance | Stiff | Users who prefer a crisp, traditional feel |
| Brass | Deep, thocky, dense sound with low pitch | Very stiff | Thock lovers and those wanting maximum weight |
| FR4 (PCB material) | Warm, slightly muted, balanced | Medium stiffness | Versatile all-rounder, great for foam mods |
| Polycarbonate | Soft, creamy, flexible with a low pitch | Flexible (gasket mount friendly) | Typists who want a bouncy, quiet experience |
| Carbon Fiber | Bright, crisp, with a metallic ring | Stiff but lightweight | Gamers looking for responsive feedback |
How to Swap Your Keychron Plate
Most Keychron Q and V series keyboards feature a modular plate system. Here's a step-by-step:
- Remove keycaps and switches: Use a keycap puller and switch puller to clear the PCB.
- Unscrew the plate: Locate the screws that attach the plate to the PCB (usually on the underside). Remove them carefully.
- Separate the plate from the PCB: Gently lift the plate off. The PCB may have switch pins that need to be cleared—take your time.
- Install the new plate: Align it with the PCB, ensuring all switch holes match. Screw it back in place.
- Reinstall switches and keycaps: Press switches firmly into the new plate and replace keycaps.
For those using a V10 Brass Plate, the swap will instantly add heft and a deeper thock to your typing. Brass is denser than aluminum, so it absorbs more vibration and produces a lower pitch. Pair it with a Poron foam mod for a sound that rivals custom builds costing twice as much.

Method 3: Acoustic Kits—Plug-and-Play Sound Enhancement
If you don't want to cut foam or source individual parts, acoustic kits are the perfect solution. These pre-designed sets include foam layers, gasket strips, and sometimes even plate materials tailored to your specific keyboard model. Keychron offers official kits for many of their boards, and third-party options are widely available.
What's Inside a Typical Acoustic Kit?
- Case foam: Pre-cut Poron or silicone sheets that fit the bottom case.
- Plate foam: A thin layer that sits between the plate and PCB to reduce switch wobble and dampen plate noise.
- Gasket pads: Replacement gasket strips made of softer silicone or Poron to improve gasket mount behavior.
- Switch pads: Small foam or silicone dots that stick to the bottom of each switch to mute bottom-out sound.
Benefits of Using Acoustic Kits
- No cutting required: Everything is pre-cut to exact dimensions, so you can install in minutes.
- Consistent results: Kits are designed by acoustics experts, so you get a predictable sound profile.
- Customizable layers: Many kits let you choose the density and thickness of foam to fine-tune your sound.
For example, if you own a Lemokey X5 QMK Wired Mechanical Keyboard, you can find acoustic kits that include case foam, a plate foam layer, and even a silicone bottom pad. The X5's tray-mount design benefits greatly from foam, as it reduces the hollow echo common in plastic cases. After installation, you'll notice a cleaner, more professional sound that rivals metal-framed keyboards.
Combining Mods for the Ultimate Sound
For the best results, don't stop at one mod. Combine a foam mod with a plate swap and an acoustic kit for a fully customized acoustic experience. Here's a suggested roadmap:
- Start with foam: Add a Poron case foam and plate foam to eliminate hollow resonance.
- Swap the plate: Replace the stock aluminum plate with a brass or FR4 plate to shift tonal balance.
- Add switch pads: Install silicone switch pads to soften each keystroke's bottom-out sound.
- Consider keycaps: Thicker, PBT keycaps like the Cherry Profile Double - Shot PBT Full Set Keycaps - Dolch Blue can further dampen sound and add a satisfying texture. Their double-shot construction ensures legends never fade, and the Cherry profile is a classic choice for deep acoustics.
Always test your keyboard after each modification. Sound is subjective, so trust your ears. A good rule: if you hear metallic ping or hollow echo, add more foam. If the sound is too muffled, try a stiffer plate like brass or aluminum.
Frequently Asked Questions
Will foam mods affect typing feel?
Yes, but usually in a positive way. Thicker foam can make the bottom-out feel slightly softer and more cushioned. Some users find it reduces fatigue during long typing sessions.
Do I need to desolder my switches?
No. All Keychron keyboards featured in this guide use hot-swappable PCBs, so you can remove and reinstall switches without soldering. This makes modding quick and reversible.
Can I use these mods on wireless keyboards?
Absolutely. Just be mindful of the battery compartment—leave space for the battery and avoid covering vents. Foam mods can even help reduce interference from case resonance on wireless models.
Conclusion
Upgrading your Keychron keyboard's sound doesn't require expensive tools or expert skills. With foam mods, plate swaps, and acoustic kits, you can achieve a custom acoustic signature that makes every keystroke a pleasure. Start with a simple foam mod to hear the difference, then experiment with plate materials to find your ideal tonal balance. The journey is half the fun—and the results will transform your daily typing experience.
Ready to take the first step? Explore the V10 Brass Plate to instantly deepen your keyboard's sound. Whether you're a gamer seeking a thocky feedback or a writer craving a quiet, refined tone, these mods will help you unlock your board's full acoustic potential.



