HMX EVA vs. TTC Iron

Overview

When it comes to choosing the perfect mechanical keyboard switch, enthusiasts often find themselves drawn to the unique characteristics and experiences that different options offer. The HMX EVA switch, inspired by the iconic colors of Evangelion Unit-01, is celebrated for its resonant sound signature and silky smooth typing feel, making it an excellent choice for those who appreciate a subtly immersive experience while typing. On the other hand, the TTC Iron switch stands out with its pronounced clacky sound, infusing each keystroke with a delightful auditory feedback that appeals to users who enjoy a more dynamic typing experience. With its remarkably light actuation, the Iron promises fatigue-free typing sessions, appealing to both seasoned enthusiasts and casual users alike. Although both switches are linear and emphasize smooth travel, they cater to distinct preferences in sound and tactile feedback. 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 Iron Linear

$3.50

$2.99 per 10

$5.40

$4.30 per 10

Learn moreLearn more

Housing materials

When comparing the housing materials of the HMX EVA and the TTC Iron switches, it becomes evident that the two differ in their top and bottom housing compositions, which subsequently influences their overall acoustic profiles. The HMX EVA utilizes a nylon top and bottom housing, which is known for its classic sound characteristics. Nylon, being a softer plastic, absorbs sound effectively, resulting in a deeper, rounder sound profile that is both fuller and more muted. This quality makes typing on the EVA a nuanced experience where the absorption properties contribute to a duller auditory response, enhancing the overall typing comfort.

In contrast, the TTC Iron employs POM (Polyoxymethylene) for both its top and bottom housings. POM is recognized for producing a distinct sound that is also on the deeper side but has a unique resonance. While the Iron's sound is described as pleasing and muted, the inherently harder nature of POM compared to nylon creates a different feeling during typing. The attributes imparted by the POM material lend the Iron a more tightly controlled sound, contrasting with the EVA’s absorption characteristics. This tighter feel and sound can lead to a more focused auditory feedback as users press down on the keys.

Despite their differences, both the HMX EVA and TTC Iron achieve commendable sound profiles that cater to enthusiasts' preferences. If one were to consider the overall typing experience, both switches will yield satisfactory results thanks to the quality of their materials—nylon for the EVA which fosters a softer sound, and POM for the Iron that generates a more controlled and unique resonance. Although the manner in which sound is generated when engaging each switch may differ, the impact of their respective housing materials on typing response ensures that users will encounter an enjoyable experience regardless of which switch they select. In essence, both switches offer their distinctive auditory and tactile pleasures, demonstrating that variation in housing material can lead to diverse yet satisfying outcomes.

Weight

The HMX EVA linear switch and the TTC Iron linear switch present comparable characteristics when examining their actuation and bottom out forces. The EVA has an actuation force of 42 grams and a bottom out force of 48 grams, while the Iron features a slightly lower actuation force of 41 grams and a heavier bottom out force of 50 grams. Both switches are classified as light options; however, the EVA is marginally heavier in terms of actuation force and lighter regarding the bottom-out force when compared to the Iron. This means that typists who prefer a lighter touch may find both switches suitable, but those looking for a more substantial keyboard experience might gravitate towards the heftier feel of the Iron's bottom out. Ultimately, both switches are designed for prolonged use, offering a comfortable typing experience for extended periods, making them suitable for both work and gaming environments, although the EVA provides a slight edge in overall actuation comfort.

Travel distance

When comparing the travel distances of the HMX EVA and the TTC Iron linear switches, the EVA features a travel distance of 3.6 mm, while the Iron has a slightly longer travel distance of 3.8 mm. This means that the EVA is the shorter option, making it potentially more suitable for gamers who favor a quicker response time due to the shorter travel. On the other hand, the Iron's travel distance may appeal to those who prefer a more substantial feel when pressing the keys, as it offers a deeper depth compared to the EVA. Ultimately, individuals looking for a more responsive experience might opt for the EVA, whereas those who enjoy a heartier keystroke could choose the Iron for its longer travel distance.

Price comparison

Typing experience

When considering the sound profiles of the HMX EVA and TTC Iron linear switches, the EVA is recognized for its resonant sound signature that invokes a unique auditory experience, while the Iron showcases a more pronounced clacky sound signature. The clacky nature of the Iron produces a crisp and percussive noise that resonates with each press, making typing not just functional but also enjoyable. The EVA's sound, while unspecified, suggests a more subdued aural quality compared to the active and bright sound of the Iron, which caters to those who may prefer a quieter typing environment. It's important to note that sound can also vary significantly depending on the keyboard build and keycap choices, which might lead to similarities between the two if combined correctly.

In terms of tactile feel, the EVA offers a silky smooth typing experience that many users find appealing for long typing sessions. In contrast, the Iron is characterized by its easy-to-press nature, which requires minimal force for activation. This ensures that typing remains fatigue-free, especially during extended use. The Iron's buttery smooth travel works in harmony with its light actuation force, further enhancing comfort. Both switches appear designed to deliver an effortless typing experience, though the Iron leans towards a gentle resistance that still maintains user engagement, while the EVA offers a more luxurious smoothness.

In summary, while the HMX EVA and TTC Iron linear switches both promise an enjoyable typing experience, they cater to slightly different preferences in sound and feel. The EVA's resonant sound and silky smoothness contrast with the Iron’s pronounced clacking and lightweight ease of pressing. For users seeking a more quiet yet smooth experience, the EVA may be preferable, while those who enjoy auditory feedback may gravitate toward the Iron. Ultimately, depending on the desired sound and tactile feedback, both switches can deliver satisfaction, though in different styles, and users can achieve harmonious results with careful keyboard and keycap selections.

Conclusion

To sum up, when choosing between the HMX EVA linear switch and the TTC Iron linear switch, your decision will largely depend on your personal preferences regarding sound and feel during your typing experience. If you're drawn to a visually striking design and desire a smooth typing experience with a resonant sound signature, the HMX EVA is an excellent choice. Its lighter actuation force of 48 grams allows for less finger fatigue, making it ideal for long typing sessions, particularly if you appreciate a unique aesthetic inspired by pop culture. On the other hand, if you prefer a slightly firmer typing experience, the TTC Iron, with its 50 grams of actuation force, offers a satisfying, clacky sound that adds an enjoyable rhythm to your keystrokes. This switch is especially well-suited for those who appreciate a bit of auditory feedback without the risk of overwhelming noise, making it versatile for both work and leisure. Ultimately, your choice should reflect not just the type of work you do or the games you play but also how you want your keyboard to feel and sound under your fingers.

Mentioned in this article

HMX EVA Linear

$3.50

$2.99 per 10

Learn more

TTC Iron Linear

$5.40

$4.30 per 10

Learn more