HMX Sonja vs HMX Snow Crash – Rail Bottom-Out Linears: Textured “Scratch” vs Clean & Deep
HMX Sonja and HMX Snow Crash are two popular modern linear switches that both focus on tight tolerances and a “premium” feel. On paper they look similar (PA66 housing, POM stem, 22mm long spring), but in practice they aim for different experiences: Sonja is intentionally more textured/scratchy due to the top housing, while Snow Crash is known for a clean, stable rail bottom-out feel with a calmer bottom-out character.
1. Construction & Materials
- HMX Sonja – Rail bottom-out linear with an intentionally textured top housing that adds a recognizable “scratch” sensation. Typically factory-lubed, which can vary by batch/vendor.
- HMX Snow Crash – Rail bottom-out linear with a traditional PA66 housing and POM stem. Often described as “clean” and controlled, with low wobble and consistent keyfeel.
2. Technical Specifications
HMX Sonja
- Type: Linear (rail bottom-out)
- Actuation: ~45g (may vary by batch)
- Bottom-out: ~52g (may vary by batch)
- Pre-travel: ~2.0 mm
- Total travel: ~3.9 mm
- Materials: PA66 top & bottom, POM stem
- Spring: ~22mm long (often listed as KOS-style)
- Character: intentionally textured/scratchy top-housing feel
HMX Snow Crash
- Type: Linear (rail bottom-out)
- Actuation: ~50g (often listed ±2g)
- Bottom-out: ~58g (often listed ±2g)
- Pre-travel: ~2.0 mm
- Total travel: ~4.0 mm
- Materials: PA66 top & bottom, POM stem
- Spring: ~22mm long (often listed as KOS-style)
- Character: clean travel, stable feel, calmer bottom-out
3. Performance & Feel
HMX Sonja – Textured linear with personality
Sonja stands out for its intentional texture. That “scratch” is less about bad molding and more about a deliberate design choice that gives the switch extra character. If you enjoy a linear that doesn’t feel “sterile smooth,” Sonja can be surprisingly satisfying, especially for longer typing sessions.
HMX Snow Crash – Clean, stable, and calmer bottom-out
Snow Crash is the “clean” option: slightly heavier, full travel, and often described as more controlled at bottom-out. It tends to feel tight and stable with low wobble, making it a strong pick if you want a consistent, controlled linear.
4. What does the community say?
About Sonja
“The textured top is a feature: it adds feel without feeling cheap.”
“Not the smoothest linear, but one of the most interesting.”
About Snow Crash
“Very clean and tight, with a calmer bottom-out than expected.”
“Low wobble and consistent. Great daily-driver linear.”
5. Pros & Cons
HMX Sonja
Pros:
- Unique textured feel: adds character to a linear switch
- Lighter weight: comfortable for long sessions
- Modern tolerances with a rail bottom-out concept
Cons:
- Not for everyone: “ultra-smooth” fans may find it too textured
- Specs/feel can vary a bit by batch and listing
HMX Snow Crash
Pros:
- Clean, controlled linear with rail bottom-out
- Full travel and slightly heavier: stable, grounded feel
- Often praised for tight tolerances and low wobble
Cons:
- Heavier than Sonja: less “light and airy”
- If you want maximum clack, it may feel a bit too calm
6. Comparison Table
| Switch | Weight | Travel | Sound | Feel | Ideal for |
|---|---|---|---|---|---|
| HMX Sonja | ~45g / ~52g | ~3.9mm | Neutral to controlled (board-dependent) | Textured/scratchy “by design,” light and lively | Typists who want character in a linear |
| HMX Snow Crash | ~50g / ~58g | ~4.0mm | Calmer bottom-out, clean profile | Tight, stable, clean travel | Daily-driver linear: consistent and controlled |
7. Which one should you choose?
- Choose HMX Sonja if you want a light linear with extra “feel” and you’re curious about the intentionally textured sensation.
- Choose HMX Snow Crash if you want a clean, stable linear with full travel and a calmer, controlled bottom-out.
Conclusion
HMX Sonja and HMX Snow Crash are both modern rail bottom-out linears, but with different goals. Sonja leans into personality (textured feel), while Snow Crash focuses on clean control (stable, calmer bottom-out). If you want something that feels distinct from the average ultra-smooth linear, go Sonja. If you want a tight, consistent workhorse with slightly more weight and full travel, Snow Crash is the safer pick.

