HMX SU vs. Bsun Tomcat

Overview

When choosing a mechanical keyboard switch, the HMX SU and Bsun Tomcat are two noteworthy linear options that cater to different preferences and typing experiences. The HMX SU stands out with its full PA12 housing and T5 stem, offering a subtly deep sound profile that appeals to users who appreciate a more pronounced auditory feedback while typing, which can enhance the overall experience without being overly intrusive. On the other hand, the Bsun Tomcat is celebrated for its Ly stems, which deliver an exceptionally smooth typing experience characterized by a resonant sound profile, making it a favorite among those who prioritize fluidity and effortless key presses. Both switches provide distinct advantages: the HMX SU for its unique sound and depth, and the Bsun Tomcat for its silky smoothness. However, let's dive in a bit deeper beyond generalities so you can best decide on the optimal switch for your needs.

By the numbers

HMX SU Linear

Bsun Tomcat Linear

$3.50

$3.29 per 10

$2.99 per 10

Learn moreLearn more

Housing materials

The HMX SU and the Bsun Tomcat utilize different materials for their top housings, with the HMX SU featuring a nylon top housing and the Bsun Tomcat utilizing a polycarbonate top housing. This distinction in materials significantly affects the acoustic properties of each switch. Nylon, being a softer plastic, provides a deeper and fuller sound profile, effectively damping sound vibrations and creating a more muted auditory experience. Conversely, polycarbonate, known for its rigidity, contributes to a sharper and crisper sound. Its stiffer nature enhances clarity and resonance, which can be particularly appealing for users who prioritize an articulate typing experience. The choice of housing material fundamentally influences how users perceive each switch in terms of auditory feedback during operation.

In contrast, both the HMX SU and the Bsun Tomcat share a commonality in their bottom housings, as both switches utilize nylon material. This alignment results in similar tactile characteristics and sound profiles for the switches in the bottom-out phase. The nylon bottom housing provides that signature deep and full sound, further enhancing the overall typing experience. This consistent use of nylon in the bottom housing ensures that, regardless of the differences in their top housings, users will encounter a similar sound and feel when actuating keys. Therefore, the bottom housing's contribution is pivotal to the overall experience, preserving the deeper sound qualities associated with nylon.

When considering the combined effects of both top and bottom housings, it becomes evident that while the HMX SU and the Bsun Tomcat differ in the materials used for their top housings, the nylon bottom housing creates a shared foundation that influences overall performance. The distinct characteristics of the top housings play crucial roles in the sound produced during key release; however, the shared nylon bottom housing maintains a depth in sound that underpins both switches. Thus, even with contrasting top material attributes, the end-user experience can retain similarities in the deeper sound profile thanks to the consistent use of nylon in the bottom housing, highlighting an interesting interplay between the unique properties of each material.

Weight

When comparing the HMX SU linear switch and the Bsun Tomcat linear switch, both switches have the same actuation force of 45 grams, meaning they will provide a similar typing experience in terms of keystroke activation. However, the bottom out force differs between the two; the SU has a bottom out force of 50 grams, while the Tomcat has a slightly heavier bottom out force of 54 grams. This indicates that while both switches require the same amount of force to register a keypress, the Tomcat will feel a bit more substantial when fully pressed down, which may cater to users who prefer a stronger tactile feedback during typing. Overall, the SU is considered lighter when evaluating the bottom out force, making it a potentially better choice for those seeking longer typing sessions without fatigue, whereas the Tomcat might appeal to users desiring a firmer feel during bottoming out.

Travel distance

The HMX SU linear switch and the Bsun Tomcat linear switch both have a travel distance of 3.6 mm, making them identical in this aspect. This means that users will experience the same keypress depth and feedback when engaging with either switch, resulting in similar tactile and auditory responses. Since both switches travel the same length, typists and gamers alike can expect consistent performance regardless of which switch they choose. Thus, users seeking a uniform keypress experience will find both switches equally suitable.

Price comparison

Typing experience

In terms of sound, the HMX SU linear switch is characterized by a subtle yet relatively deep sound profile, which contributes to a more muted auditory experience that is pleasant and unobtrusive during typing. On the other hand, the Bsun Tomcat linear switch produces a resonant sound profile, hinting at a higher pitch and a potentially more lively auditory feedback. It is essential to note that the sound of each switch can vary based on the keyboard build, including factors like the board material and the type of keycaps used, so personal experiences may differ.

When it comes to feel, the HMX SU linear switch is designed with a T5 stem that promotes a smooth keypress but also features a bit more resistance that can provide a tactile experience without the click of tactile or clicky switches. In contrast, the Bsun Tomcat linear switch utilizes Ly stems known for delivering a super smooth typing experience, minimizing any friction and resulting in an effortlessly gliding keypress. This contrast in feel appeals to different typing preferences—those who appreciate a bit of resistance might lean towards the SU, while those who prioritize smoothness might prefer the Tomcat.

Overall, both the HMX SU and the Bsun Tomcat linear switches offer unique sound and tactile qualities that cater to different user preferences. While the SU leans towards a deeper, subtler sound and provides a slightly more resistant feel, the Tomcat offers a brighter resonant sound combined with an exceptionally smooth keypress. Depending on your typing style and acoustical preference, both switches can deliver satisfying experiences, though they will provide differing feels and sounds that can enhance your overall mechanical keyboard journey.

Conclusion

To conclude, when choosing between the HMX SU linear switch and the Bsun Tomcat linear switch, your specific preferences and typing style will guide your decision. If you prefer a lighter actuation at 50 grams and enjoy a softer, deeper sound profile, the HMX SU is the ideal choice for you. Its full PA12 housing contributes to a unique acoustic experience that some users find satisfying, especially in quieter environments or for tasks that require focus and concentration. On the other hand, if you’re looking for a switch that offers a slightly more tactile feel with a medium-light force of 54 grams, as well as a super smooth typing experience, the Bsun Tomcat might be more aligned with your needs. Its Ly stems provide an exceptionally fluid keystroke motion, complemented by a resonant sound profile that can add an engaging auditory element to your typing. Ultimately, your choice between these two switches will hinge on whether you prioritize a lighter actuation and deeper sound or a smoother feel with a touch more resistance.

Mentioned in this article

HMX SU Linear

$3.50

$3.29 per 10

Learn more

Bsun Tomcat Linear

$2.99 per 10

Learn more