TTC Iron vs. HMX SU

Overview

When it comes to choosing a mechanical keyboard switch, the TTC Iron and the HMX SU both offer unique experiences that cater to different preferences among users. The TTC Iron linear switch stands out with its pronounced clacky sound signature, delivering an engaging auditory feedback with each keystroke. Its lightweight design and buttery smooth travel make it an excellent option for those who enjoy rapid, fatigue-free typing, whether for gaming or everyday tasks. On the other hand, the HMX SU linear switch emphasizes a more subtle, deeper sound profile, thanks to its full PA12 housing paired with a T5 stem. This switch may appeal to users looking for a quieter typing experience without sacrificing responsiveness, making it ideal for environments where noise levels are a concern. While both switches offer a smooth typing experience, the choice between the clack and the quieter sound may ultimately define your ideal selection. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.

By the numbers

TTC Iron Linear

HMX SU Linear

$5.40

$4.30 per 10

$3.50

$3.29 per 10

Learn moreLearn more

Housing materials

The TTC Iron and the HMX SU switches both utilize distinct housing materials that influence their sound profiles and typing experiences, yet they share some similarities that can yield comparable outcomes. The TTC Iron features POM (Polyoxymethylene) for its top and bottom housings, resulting in a unique sound that tends towards the deeper, more muted end of the spectrum. In contrast, the HMX SU utilizes nylon for both its top and bottom housings, a classic material known for crafting a deeper, fuller sound profile. While the specific materials differ, both POM and nylon contribute to a sound that is rounder and less harsh than that produced by harder plastics, suggesting that both switches may deliver a satisfying tactile experience when typing.

Despite the differences in their material compositions, both housings present particular characteristics that shape the acoustic properties of the switches. The POM housings of the TTC Iron not only enhance the sound profile due to their structure but also allow for a more muted bottom-out sound, similar to how the nylon housing in the HMX SU absorbs sound effectively, providing a deeper audio output. Both materials are relatively softer compared to traditional plastic options, which means that they can dampen the sound to some extent, leading to a more subdued auditory experience. This shared trait suggests that while the materials are different, they may lead to similar auditory outcomes due to their inherent properties that promote sound absorption.

Additionally, the way each switch’s design influences user experience warrants consideration. With POM contributing to the muted sound profile of the Iron, and nylon offering a fuller resonance in the SU, the respective housing materials dictate the acoustic signature perceived during both key presses and releases. When you depress the switches, the bottom housing plays a critical role in the sound and feel. Therefore, even with their differing materials, both switches emphasize the importance of how housing material can affect the overall typing feel and sound experience. Consequently, users can expect satisfying results from both switches, characterized by deep, fulfilled sound profiles, albeit through different material pathways.

Weight

When comparing the TTC Iron linear switch and the HMX SU linear switch, both switches provide a light typing experience, although they differ slightly in their actuation forces. The Iron switch has an actuation force of 41 grams, while the SU switch requires a slightly heavier 45 grams to register a keystroke. Both switches have the same bottom-out force of 50 grams, indicating that they both reach the same resistance level when fully pressed down. This similarity in bottom-out force suggests that, despite the difference in actuation forces, users will experience a comparable feel when the switch is fully depressed. For users seeking a keyboard for prolonged typing or gaming sessions, the TTC Iron, with its lighter actuation force, may be more appealing, while those who prefer a sturdier push may gravitate toward the HMX SU due to its marginally heavier actuation force. Overall, the Iron is the lighter option, making it suitable for longer use, whereas the SU offers a slightly more substantial push for those who favor tactile feedback in their typing experience.

Travel distance

The TTC Iron linear switch has a travel distance of 3.8 mm, while the HMX SU linear switch has a slightly shorter travel distance of 3.6 mm. This difference means that pressing down on the Iron will provide a bit more depth and may feel more substantial, catering to those who favor a hearty key press. In contrast, the HMX SU, with its shorter travel distance, allows for quicker actuation, making it potentially more appealing for gamers seeking faster response times. While both switches fall within the range of shorter travel distances that are increasingly popular, the Iron switch is the longer option, and the SU is the shorter one. If a user prefers greater responsiveness, they may gravitate towards the HMX SU, whereas those who appreciate a more pronounced feel might opt for the TTC Iron.

Price comparison

Typing experience

In terms of sound, the TTC Iron linear switch is characterized by its pronounced clacky sound signature, producing a sharp and snappy auditory feedback with each keystroke. This crisp, bright, and percussive quality adds a delightful layer of aural satisfaction to the typing experience. Conversely, while the sound profile of the HMX SU linear switch is less explicitly discussed, it is noted to have a subtle and relatively deep sound. This contrast suggests that, while the Iron engages users with a more lively auditory experience, the SU may cater to those seeking a quieter and more subdued typing environment. However, it's important to recognize that the overall sound produced by either switch can vary depending on additional factors, such as the keyboard's construction and the choice of keycaps.

When considering the feel of the switches, the TTC Iron stands out for its easy-to-press nature, requiring minimal force for actuation. This gentle resistance contributes to a typing experience that is not only effortless but also comfortable, significantly reducing finger fatigue during extended usage. The smooth travel of the Iron enhances this experience, making it appealing for both casual users and seasoned enthusiasts. The mild characteristics of the Iron also ensure that it provides a balanced experience, approachable for most types of users. Conversely, details regarding the feel of the HMX SU linear switch are unspecified, leaving a gap in direct comparison.

In conclusion, the TTC Iron linear switch excels with its engaging clacky sound and effortless feel, making it an attractive option for those who appreciate both a spirited typing experience and minimal finger fatigue. On the other hand, the HMX SU linear switch offers a quiet and subtle sound profile, catering to users who might prioritize a more understated auditory experience. While the sound and feel of the SU are less defined, the choices offered by both switches present users with distinct advantages, catering to varied preferences in the mechanical keyboard realm. Each switch has its own unique appeal, ensuring that regardless of the choice, users can find a satisfying typing experience tailored to their needs.

Conclusion

To conclude, when deciding between the TTC Iron linear switch and the HMX SU linear switch, consider your personal preferences for sound, feel, and intended use. The TTC Iron, with its light actuation and pronounced clacky sound signature, is ideal if you seek an engaging typing experience that combines both auditory feedback and a smooth feel. This makes it particularly suited for enthusiasts who enjoy a lively keypress and want to add a bit of character to their typing sessions. Additionally, its easy-to-press nature makes it a great choice for long hours of use, as it minimizes finger fatigue. On the other hand, if you prefer a more neutral and subtle sound profile, the HMX SU linear switch with its full PA12 housing and T5 stem may be more to your liking. While it also features a light bottom-out force, the sound is understated, making it a fantastic option for environments where discretion is key, such as in an office setting. Ultimately, your choice should reflect how much you value auditory feedback and tactile response in your keyboard experience.

Mentioned in this article

TTC Iron Linear

$5.40

$4.30 per 10

Learn more

HMX SU Linear

$3.50

$3.29 per 10

Learn more