HMX SU vs. Bsun Tomcat (Heavy)

Overview

When it comes to mechanical keyboard switches, the HMX SU and the Bsun Tomcat (Heavy) stand out as two prominent linear options, each offering unique attributes tailored to different user preferences. The HMX SU is renowned for its full PA12 housing and T5 stem, delivering a subtle yet relatively deep sound profile that appeals to those seeking a quieter typing experience while maintaining a satisfying feel. On the other hand, the Bsun Tomcat (Heavy) features Ly stems that emphasize a super smooth typing experience complemented by a resonant sound profile, making it ideal for users who enjoy auditory feedback with each keystroke. While both switches excel in providing a seamless typing experience characterized by linear actuation, the choice between them ultimately hinges on whether you prioritize a deeper sound with the HMX SU or the smoothness and resonance of the Bsun Tomcat (Heavy). However, let's dive in a bit deeper beyond generalities so you can best decide on the switch that suits your needs.

By the numbers

HMX SU Linear

Bsun Tomcat (Heavy) Linear

$3.50

$3.29 per 10

$2.99 per 10

Learn moreLearn more

Housing materials

When analyzing the housing materials of the HMX SU and the Bsun Tomcat (Heavy) switches, a distinct contrast is evident in the composition of the top housings. The HMX SU utilizes nylon for its top housing, a material known for its softness, which contributes to a deeper and fuller sound profile during use. This choice allows the switch to absorb sound effectively, resulting in a muted and rounded auditory experience. In contrast, the Bsun Tomcat (Heavy) employs a polycarbonate top housing, which is a harder and more rigid plastic. This choice results in a sound profile that is sharper, higher-pitched, and crisper, as it allows sound waves to resonate more freely. Thus, while both switches can provide a functional experience, the auditory qualities differ significantly due to their respective top housing materials.

Moving to the bottom housings, both the HMX SU and the Bsun Tomcat (Heavy) feature nylon, which presents a consistency in their design. The nylon bottom housing is responsible for a deeper and fuller sound profile, mirroring the effects seen in the top housing of the HMX SU. The use of nylon here allows for a cohesive sound experience where the keypress's bottoming out remains soft and rounded. While the Tomcat (Heavy)’s top housing creates a different auditory landscape, the nylon in the bottom housing ensures that users still experience a similar sound characteristic when the keys are fully pressed. Therefore, despite the top housings being fundamentally different in their acoustic properties, both switches maintain similar bottom sound effects due to the commonality of nylon in their bottom constructions.

Ultimately, the combination of varied materials in the HMX SU and Bsun Tomcat (Heavy) switches results in distinct audio and tactile dynamics. While the nylon bottom housing in both models serves to deliver a deeper sound profile, the use of polycarbonate in the Tomcat's top housing fosters a sharper sound experience that enhances the overall auditory spectrum. This deliberate design choice means that users can experience a blend of both softer and crisper sound profiles depending on the key's action phase—pressing down versus releasing. In this way, both switches offer a unique auditory journey influenced by their material compositions, revealing the intricate relationship between housing materials and the keypress experience.

Weight

When comparing the HMX SU linear switch and the Bsun Tomcat (Heavy) linear switch, notable differences arise in both actuation and bottom out forces. The HMX SU features a relatively light actuation force of 45 grams and a bottom out force of 50 grams, making it an excellent choice for those who prefer easier keystrokes, ideal for extended typing sessions or gaming marathons where comfort is key. In contrast, the Bsun Tomcat (Heavy) has a heavier actuation force of 55 grams and a bottom out force of 64 grams, catering to users who favor a more substantial push feel. This difference in actuation forces suggests that the Tomcat switch will provide a firmer response, which can be appealing for users seeking a more tactile typing experience. Ultimately, if you prefer lighter switches, the HMX SU is the better option, while those who enjoy a heavier actuation should opt for the Bsun Tomcat (Heavy).

Travel distance

Both the HMX SU linear switch and the Bsun Tomcat (Heavy) linear switch have the same travel distance of 3.6 mm. This means that users can expect a similar tactile experience when pressing down on keys equipped with either switch, as the distance they travel from the top to the bottom is identical. As a result, users should achieve comparable performance and feel, regardless of which switch they choose to use.

Price comparison

Typing experience

In terms of sound, the HMX SU linear switch is known for its subtle yet relatively deep sound profile, which can create an understated acoustic environment that some users find appealing. This quality can contribute to a more professional and muted typing experience. On the other hand, the Bsun Tomcat (Heavy) linear switch features a resonant sound profile, suggesting that it may have a more pronounced acoustic presence when typing. While both switches have their unique audio characteristics, the overall sound experience will also depend on the keyboard used and the type of keycaps applied, which can further accentuate or diminish these sound profiles.

As for feel, the HMX SU switch utilizes a T5 stem, which is designed to deliver a smooth typing experience, making it accessible for both typing and gaming. Users who prefer a refined linear feel may appreciate this switch for its consistency and reliability. Conversely, the Bsun Tomcat (Heavy) switch incorporates Ly stems that provide an exceptionally smooth typing sensation as well, emphasizing a seamless keystroke with minimal resistance. Both switches are geared toward a luxurious typing experience, making them suitable for users who value smoothness in their keystrokes.

In conclusion, both the HMX SU and Bsun Tomcat (Heavy) linear switches offer unique sound and feel qualities that cater to different preferences. While the SU emphasizes a subtle sound with a smooth feel, the Tomcat (Heavy) showcases a more resonant sound paired with an exceptionally silky typing experience. Ultimately, whether one prefers the understated nature of the SU or the stimulating acoustic presence of the Tomcat (Heavy), both options promise to deliver satisfying results for keyboard enthusiasts.

Conclusion

To wrap up, your choice between the HMX SU linear switch and the Bsun Tomcat (Heavy) linear switch ultimately depends on your typing preferences and the experience you seek. If you prefer a lighter touch and a more subdued sound profile, the HMX SU with its 50g bottom-out force would be an excellent option. Its PA12 housing and T5 stem contribute to a deeper, yet gentle auditory experience, which is perfect for those who favor a quieter working environment or are just starting their mechanical keyboard journey. On the other hand, if you enjoy a more tactile experience and appreciate a slight resistance during keystrokes, the Bsun Tomcat (Heavy) would serve you well with its 64g bottom-out force. This switch’s Ly stems offer superior smoothness, and the resonant sound profile adds character to each keystroke, making it an enticing choice for enthusiasts who enjoy a more pronounced audio feedback while typing. Ultimately, consider what aspects are most important to you—lightness and subtlety with the SU or robust feedback and smoothness with the Tomcat (Heavy)—to find your perfect match.

Mentioned in this article

HMX SU Linear

$3.50

$3.29 per 10

Learn more

Bsun Tomcat (Heavy) Linear

$2.99 per 10

Learn more