HMX SU vs. HMX Xinhai
An in-depth look at the HMX SU and the HMX Xinhai switches—which one is the best fit for you?
Overview
When it comes to choosing mechanical keyboard switches, the HMX SU and HMX Xinhai linear switches stand out for their unique characteristics and acoustic profiles. The HMX SU is recognized for its full PA12 housing and a T5 stem, producing a subtle yet deep sound, which can appeal to users looking for a dampened typing experience that mitigates distracting noises. In contrast, the HMX Xinhai switch is crafted with a distinctive PA12 top housing and features a POM stem, delivering a crisp and higher-pitched resonance. This switch is known for its bouncy, clacky, and creamy feel, making it an excellent choice for those who enjoy more feedback in their typing experience. Both switches cater to different preferences; the SU may attract users seeking a more muted, refined sound, while the Xinhai appeals to enthusiasts who prefer a lively and engaging acoustic experience. However, let’s dive in a bit deeper beyond generalities so you can best decide on the best switch for you.
By the numbers
Technical specifications
Actuation force
45g
Actuation force
37g
Bottom-out force
50g
Bottom-out force
45g
Pre-travel
1.80 mm
Pre-travel
2.00 mm
Total travel
3.60 mm
Total travel
3.40 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T5
Stem material
POM
Top housing material
Nylon
Top housing material
Nylon
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
22mm single-stage spring
Housing materials
The HMX SU and HMX Xinhai utilize nylon for both their top and bottom housings, which positions them similarly in terms of acoustic properties and tactile feedback. Nylon is renowned for its ability to produce a deeper and fuller sound profile, attributable to its relatively softer composition. This characteristic is consistent across both models, as the nylon components absorb sound more effectively than harder plastics. Consequently, users of both the SU and Xinhai can expect a muted yet rich auditory experience when typing, with the materials providing a uniform foundation for sound quality that enhances the overall typing experience.
In terms of how the materials influence the typing experience, the top and bottom housings play distinct roles, even when made from the same nylon material. For instance, while both housings in both models contribute to an overarching sound profile, the bottom housing has a more pronounced effect on the bottom-out sound and feel when a key is fully pressed down. Conversely, the top housing significantly influences the sound emitted when a key is released. This means that while the acoustic qualities imparted by nylon are consistent across both models, the experience can vary depending on which part of the switch you are interacting with. The combination of these two housings, while both made of nylon, allows for a nuanced typing experience.
Ultimately, despite the similarities in housing materials between the HMX SU and Xinhai, the interactive behaviors of the two models ensure that users will encounter a comparable yet tailored typing experience. The reliance on nylon ensures that both models provide that signature rich sound profile, yet the differentiation in the application of the top and bottom housing materials contributes to a unique layered sound experience. This setup allows users to appreciate the full depth of acoustic characteristics, even with identical materials, emphasizing how crucial the individual functions of the top and bottom housing are in giving each switch its distinctive feel and sound.
Weight
The HMX SU linear switch and the HMX Xinhai linear switch both feature relatively light actuation and bottom out forces, making them suitable for extended typing sessions or gaming marathons. The SU has an actuation force of 45 grams and a bottom out force of 50 grams, while the Xinhai has an even lighter actuation force of 37 grams and a bottom out force of 45 grams. This means the Xinhai provides an easier push for a keystroke and bottoms out with less resistance compared to the SU. While both switches offer a light touch, those who prefer a more substantial typing experience might lean towards the SU due to its higher actuation and bottom out forces, giving it a slightly heavier feel. In contrast, the Xinhai is the lighter option overall, making it ideal for users seeking a more effortless typing experience. Overall, while both switches deliver a relatively similar typing feel, users should consider their preference for actuation force when choosing between them.
Travel distance
The HMX SU linear switch and the HMX Xinhai linear switch differ in their travel distances, with the SU featuring a travel distance of 3.6 mm and the Xinhai measuring 3.4 mm. This makes the Xinhai the shorter option, providing a quicker response time that may appeal to gamers who prefer rapid key presses. Conversely, the SU with its longer travel distance offers a more substantial feel, which might be favored by those who appreciate a more pronounced actuation. While both switches are relatively close in travel distance, those looking for the most responsive experience would opt for the Xinhai, whereas users who enjoy a deeper key feel may find the SU more to their liking.
Price comparison
Which switch is more bang for your buck?
The HMX SU has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the SU for $3.29.
The HMX Xinhai has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Xinhai for $2.99.
Here at Milktooth, we offer the best prices on switches (on average, 27% lower the competition). In addition, we offer free shipping on orders over $49.00. We also offer free returns and exchanges, so you can shop with guaranteed satisfaction.
That said, while price is an important piece of the puzzle, our opinion is that you should ultimately pick the option that most suits your unique preferences since you’ll be using these switches for years to come. In other words, finding something perfect for you is, in our view, the most important criteria.
Typing experience
When comparing the sound profile of the HMX SU linear switch and the HMX Xinhai linear switch, distinct differences emerge. The SU switch is characterized by a subtle and relatively deep sound, often providing a muted typing experience that some may find appealing for its understated nature. In contrast, the Xinhai switch produces a clacky sound, which is sharp and snappy, delivering a crisp and bright auditory feedback that adds a more engaging element to typing. This difference in sound also highlights how the choice of board and keycaps can further influence the overall acoustic experience.
In terms of feel, the SU switch stands out with its smooth keystrokes, offering a reliable and easy typing experience. Meanwhile, the Xinhai switch elevates this experience by combining bounciness and creaminess, providing a lively and elastic feedback quality. The bouncy feel translates to an enjoyable rebound when typing, while the creamy sensation adds a silky smoothness to each keystroke, making it almost effortless to glide across the keys. Together, these characteristics make the Xinhai switch not just enjoyable to type on but also enhances overall typing efficiency.
In summary, while the HMX SU linear switch offers a softer auditory experience with a smooth feel, the HMX Xinhai linear switch captivates with a clacky sound and a unique blend of bouncy and creamy sensations. If you prefer a quieter and more subdued typing experience, the SU is a great option. However, if you enjoy a more pronounced acoustic feedback along with a lively typing experience, the Xinhai excels in that regard. Ultimately, your choice will depend on your personal preferences for sound and feel, allowing you to curate the perfect keyboard experience that suits your style.
Conclusion
To conclude, when deciding between the HMX SU linear switch and the HMX Xinhai linear switch, it's important to consider your personal preferences and typing style. If you prefer a lighter actuation force with a deep yet subtle sound profile, the SU switch, with its 50-gram bottom-out force and full PA12 housing, may be the ideal choice for you. It is particularly well-suited for those who enjoy a balanced typing experience without too much auditory distraction. On the other hand, if you seek a unique auditory experience paired with a lively and creamy feel, the HMX Xinhai linear switch, featuring a slightly lighter 45-gram bottom-out force and its softer acoustics with a clacky sound, could be your best bet. This switch excels in providing that bouncy feedback, allowing you to enjoy a more playful typing sensation. Ultimately, your choice should reflect the type of tactile feedback and sound profile that enhances your typing enjoyment, so consider trying both in a keyboard before making a decision.
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