HMX Jammy vs. HMX SU
An in-depth look at the HMX Jammy and the HMX SU switches—which one is the best fit for you?
Overview
When exploring the realm of mechanical keyboard switches, the HMX Jammy and the HMX SU stand out as two noteworthy linear options, each offering a distinct typing experience. The Jammy is celebrated for its softer, glittery nylon housing, providing a medium-weight feel that delivers a muted yet utterly satisfying tactile response. Its unique characteristics—described as clacky, bouncy, and polished—make it an ideal choice for those who appreciate a lively typing experience with a bit of personality. In contrast, the HMX SU features a robust full PA12 housing paired with a T5 stem, resulting in a subtle and relatively deep sound profile. While it may not have the same playful flair as the Jammy, the SU is perfect for users seeking a more refined, understated typing sound without sacrificing performance. Both switches possess their own merits, making them appealing for different preferences and environments. However, let's dive in a bit deeper beyond generalities so you can best decide on the best switch for you.
By the numbers
Technical specifications
Actuation force
57g
Actuation force
45g
Bottom-out force
63g
Bottom-out force
50g
Pre-travel
2.00 mm
Pre-travel
1.80 mm
Total travel
3.70 mm
Total travel
3.60 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
POM
Stem material
T5
Top housing material
Nylon
Top housing material
Nylon
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-staged spring
Spring
22mm single-stage spring
Housing materials
Both the HMX Jammy and the HMX SU utilize nylon as their housing material for both the top and bottom components, which sets a consistent baseline for their acoustic properties. Nylon is renowned for producing a deeper and fuller sound profile, partially due to its softer nature compared to harder plastics. This inherent quality means that both switches will share similar auditory experiences when typing, as the nylon effectively absorbs sound waves, leading to a rounder and duller sound that many users find appealing. Therefore, a user of either the Jammy or the SU will likely enjoy a similarly rich typing experience, characterized by an acoustic profile that facilitates quiet and comfortable use.
Delving deeper into the characteristics of the housing materials, both the Jammy and the SU exhibit the same nylon composition in their top and bottom housings. This similarity ensures that the tactile feedback and auditory sensations during typing remain consistent across both models. Since the physical properties of nylon allow for a specific interaction between the key presses and the switch mechanism, users can expect comparable feelings during key activation and bottoming out. This is particularly important for typists who rely on the sound and feedback provided by their keyboard, as both switches will provide the same level of satisfaction for those who appreciate muted yet detailed acoustic output.
In situations where a switch utilizes different housing materials for the top and bottom components, the sound and feedback qualities would be different, splitting the experience between the two. However, given that both the HMX Jammy and the HMX SU share identical nylon housing for both components, users can expect a harmonized performance in terms of sound and feel. The pressing of keys will predominantly reflect the notable qualities of nylon, ensuring that the typing experience remains consistent and fulfilling between the two models. Consequently, no matter which switch a user opts for, the similarities in the housing materials indicate that they can anticipate an analogous typing experience with regards to both sound and tactile feedback.
Weight
When comparing the HMX Jammy linear switch and the HMX SU linear switch, key differences emerge in their actuation and bottom out forces. The Jammy features an actuation force of 57 grams and a bottom out force of 63 grams, making it a medium-weight switch. In contrast, the SU has a lighter actuation force of 45 grams and bottom out force of 50 grams, indicating that it is better suited for extended typing sessions due to reduced finger fatigue. While both switches require a distinct force to trigger a keystroke and bottom out, the SU is preferable for users who value a lighter touch, whereas the Jammy offers a more substantial feel with its heavier force. Consequently, those who enjoy a heavier switch for a firmer typing experience may gravitate towards the Jammy, while those prioritizing comfort over long periods of use may find the SU to be the more suitable option.
Travel distance
When comparing the travel distance of the HMX Jammy linear switch and the HMX SU linear switch, the Jammy measures 3.7 mm, while the SU measures slightly shorter at 3.6 mm. This makes the Jammy the more suitable option for those who appreciate a deeper feel and a more substantial keystroke experience, as it offers more travel distance. On the other hand, the SU, with its shorter travel distance, may appeal to gamers or those seeking quicker response times, providing a snappier feel. If the preference leans toward responsiveness and speed, the SU would be the recommended choice, while individuals who favor a more robust typing experience might opt for the Jammy. Thus, the distinction in travel distance highlights the varying needs of different users, with the Jammy being the longer option and the SU the shorter.
Price comparison
Which switch is more bang for your buck?
The HMX Jammy has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Jammy for $2.99.
The HMX SU has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the SU for $3.29.
Here at Milktooth, we offer the best prices on switches (on average, 27% lower the competition). In addition, we offer free shipping on orders over $49.00. We also offer free returns and exchanges, so you can shop with guaranteed satisfaction.
That said, while price is an important piece of the puzzle, our opinion is that you should ultimately pick the option that most suits your unique preferences since you’ll be using these switches for years to come. In other words, finding something perfect for you is, in our view, the most important criteria.
Typing experience
When it comes to sound, the HMX Jammy linear switch is characterized by its clacky profile, producing a sharp and snappy auditory feedback that is crisp and bright, evoking a percussive quality with each keystroke. This sound can be quite satisfying for those who enjoy a more lively acoustic experience while typing. In contrast, the HMX SU linear switch has a subtle and relatively deep sound profile, but the specifics of its auditory characteristics remain unknown. It's important to note that the overall sound experience can also be influenced by factors such as the choice of keyboard build and keycap materials, meaning both switches may produce varied audio outcomes depending on the context in which they're used.
In terms of feel, the HMX Jammy switch is lauded for its bouncy characteristics, which provide a spring-like feedback sensation upon activation. This lively feeling, combined with the switch's polished finish, results in smooth key travel and a refined typing experience. On the other hand, the feel of the HMX SU switch is not explicitly described, leaving us without a clear comparison point. However, mechanical switches often share certain qualities, allowing users to expect relatively similar typing experiences if they choose different models from the same brand or category.
In conclusion, the HMX Jammy linear switch offers a distinct clacky sound and a dynamic, bouncy feel enhanced by its polished finish, making it a deeply satisfying option for typists who enjoy engaging auditory and tactile feedback. Conversely, while the SU linear switch features a deeper sound profile, the complete sensory experience it offers—particularly in terms of feel—remains unspecified. As a newcomer, you can expect both switches to deliver enjoyable experiences, but the Jammy may appeal more to those who prioritize sound and tactile feedback in their typing. Ultimately, personal preference and specific use cases should guide your choice between these switches.
Conclusion
To conclude, when deciding between the HMX Jammy linear switch and the HMX SU linear switch, consider your typing preferences and the feel you seek in your keyboard. If you enjoy a medium-weight switch with a lively, bouncy feel, along with a clacky sound profile, the Jammy will likely provide a deeply satisfying typing experience thanks to its glittery nylon housing. This switch is ideal for those who appreciate a little feedback and a more active auditory experience, making it particularly well-suited for gaming and fast-paced typing tasks. On the other hand, if you prefer a lighter touch with a smooth and subtle typing experience that prioritizes comfort and refined control, the HMX SU switch, with its 50-gram actuation force and deep sound profile, would be the better choice. It’s perfect for long typing sessions where reduced finger fatigue is essential, without compromising on quality. By reflecting on the characteristics of each switch, you can select the one that aligns more closely with your typing style and preferences, ensuring a keyboard experience that feels just right for you.
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