HMX EVA vs. TTC Yunhai

Overview

When it comes to mechanical keyboard switches, the HMX EVA and TTC Yunhai both stand out as appealing linear options, yet they cater to different preferences and typing experiences. The HMX EVA is inspired by the iconic colors of Evangelion Unit-01, offering a resonant sound signature and a silky smooth feel that many gamers and typists appreciate for its satisfying feedback during extended use. In contrast, the TTC Yunhai presents an effortlessly gentle actuation force coupled with a deep, rounded sound profile, making it particularly suitable for users who prioritize comfort and a quieter typing experience. While both switches are classified as linear—meaning they lack tactile bumps and audible clicks—individual preferences in sound and actuation force heavily influence the choice between them. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.

By the numbers

HMX EVA Linear

TTC Yunhai Linear

$3.50

$2.99 per 10

$7.50

$5.99 per 10

Learn moreLearn more

Housing materials

When comparing the housing materials of the HMX EVA and the TTC Yunhai, it becomes evident that both switches utilize nylon for their top and bottom housings. This choice of material is significant as nylon is well-regarded in the keyboard community for its unique sound profile. Both the EVA and the Yunhai elicit a similarly deeper and fuller sound due to the softer nature of nylon, which effectively absorbs sound waves, resulting in a duller and rounder auditory experience. Consequently, users can expect a comparable acoustic performance from both switches, offering a satisfying typing experience where key presses are accompanied by a rich sound that enhances the overall feel of the keyboard.

Despite the shared use of nylon for both the EVA and the Yunhai, subtle differences may arise from the construction or design of the respective switches. For instance, while both switches feature nylon materials, the specific molding techniques or the precision of the fit between top and bottom housings could vary between the two brands. Such variations may lead to differences in the feel during typing or the acoustics when bottoming out. However, since the foundational principle of their material choice remains the same, these differences may not significantly detract from the overall experience, especially for users who prioritize a cohesive sound profile.

When evaluating the impact of the housing materials on typing dynamics, it is important to note that the distinct effects are divided between the top and bottom housings. As both the EVA and Yunhai utilize nylon, any variances in sound or feel will be influenced by the design rather than the material itself. For example, a heavier bottom housing might produce a more pronounced bottom-out sound, while a finely tuned top housing could enhance the acoustic feedback upon release. Ultimately, users can expect a similar sound and feel from both switches, with the nuances in their performances largely defined by the specifics of their construction rather than the inherent qualities of the nylon material itself.

Weight

The HMX EVA linear switch and the TTC Yunhai linear switch exhibit similar actuation forces, both requiring 42 grams to trigger a keystroke. This consistency in actuation force means users can expect a comparable typing experience regarding the initial push required. However, a distinction arises in their bottom out forces; the EVA switch has a bottom out force of 48 grams, while the Yunhai slightly exceeds this with a bottom out force of 50 grams. This indicates that although both switches are considered light, the Yunhai offers a marginally heavier push feel when fully depressed, which some users might appreciate for a more substantial typing experience. Overall, the EVA switch is the lighter option, while the Yunhai is slightly heavier, making your choice dependent on whether you prefer a lighter touch or a stronger bottoming feel.

Travel distance

Both the HMX EVA linear switch and the TTC Yunhai linear switch feature the same travel distance of 3.6 mm, which means that users can expect a similar tactile experience when pressing down on the keys. This equal travel distance ensures a consistent feel and performance across both switches, allowing for seamless typing and gaming experiences without noticeable differences in key press responsiveness. As both switches offer the same travel distance, users will enjoy a comparable level of actuation, making them interchangeable options depending on personal preferences for other switch characteristics.

Price comparison

Typing experience

In terms of sound, the HMX EVA linear switch features a resonant sound signature that provides a distinct auditory experience while typing. This characteristic can give a bit of personality to your setup, making it enjoyable for users who appreciate a more pronounced sound while they type. On the other hand, the TTC Yunhai linear switch offers a deep, rounded sound profile. This deeper tone can create a more soothing and less intrusive audio environment, making the switches suitable for those who prefer quieter typing sessions. Both sound signatures can be influenced by the choice of keyboard and keycaps, which means you’ll likely achieve similar auditory results depending on your overall setup.

When it comes to feel, the HMX EVA is renowned for its silky smooth typing experience. This smoothness can contribute to a comfortable and enjoyable feel beneath your fingers, ideal for extended typing sessions or gaming. In contrast, the TTC Yunhai linear switch is famous for its incredibly light actuation force, making it easier to press down the keys with minimal effort. This can be particularly advantageous for users who prefer a gentle and effortless typing experience, reducing finger fatigue over long stretches of use. While the EVA delivers a premium smoothness, the Yunhai emphasizes a lighter touch, appealing to different preferences among users.

In conclusion, while both the HMX EVA and TTC Yunhai linear switches offer unique qualities, they cater to different user preferences. The EVA features a resonant sound signature and a silky smooth feel, ideal for those who enjoy a lively typing experience. Meanwhile, the Yunhai distinguishes itself with its deep sound profile and incredibly light actuation force, which appeals to typists seeking a gentle and effortless feel. Depending on your setup, you can enjoy varying auditory experiences and tactile sensations that suit your typing style.

Conclusion

To conclude, choosing between the HMX EVA linear switch and the TTC Yunhai linear switch ultimately depends on your personal preferences and the typing experience you're seeking. If you are drawn to the aesthetic and experience inspired by Evangelion, the EVA might be the right choice for you. Its resonant sound signature and silky smooth feel, paired with a slightly lighter bottom out force of 48 grams, can create a vibrant and immersive typing experience, especially appealing if you enjoy a bit of character in your works. On the other hand, if you prefer a gentle, effortless typing experience with a deep, rounded sound profile, the Yunhai is a wonderful option with its 50-gram bottom out force. It’s particularly suited for those who may engage in long typing sessions and appreciate a comfy, almost plush feel. Ultimately, both switches offer light actuation forces, making them suitable for typists looking for ease of use, but the choice should hinge on whether you want the spirited touch of the EVA or the calm softness of the Yunhai.

Mentioned in this article

HMX EVA Linear

$3.50

$2.99 per 10

Learn more

TTC Yunhai Linear

$7.50

$5.99 per 10

Learn more