HMX FJ400 vs. HMX Sillyworks Hyacinth V2U
An in-depth look at the HMX FJ400 and the HMX Sillyworks Hyacinth V2U switches—which one is the best fit for you?
Overview
When it comes to choosing the right mechanical keyboard switch, the HMX FJ400 and the HMX Sillyworks Hyacinth V2U present distinct options for enthusiasts looking for linear switches. The FJ400 strikes a balance within the HMX Film switch lineup, offering a well-rounded sound profile that suits both casual typing and gaming. Its design emphasizes a linear feel that many users find appealing for fast-paced activities. On the other hand, the Sillyworks Hyacinth V2U caters to those who appreciate a more traditional typing experience, featuring a fuller travel distance of 3.9mm. This switch diverges from the trend toward shorter key travels and incorporates a bouncier feel thanks to its robust 22mm spring, all while producing a softer, bassier sound profile due to its nylon construction. While the FJ400 offers a middle ground with its balanced characteristics, the V2U merges nostalgic typing sensations with contemporary features. However, let’s dive in a bit deeper beyond generalities so you can best decide on the ideal switch for your typing preferences.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
45g
Bottom-out force
58g
Bottom-out force
52g
Pre-travel
2.00 mm
Pre-travel
1.90 mm
Total travel
3.80 mm
Total travel
3.90 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
T2
Stem material
POM
Top housing material
POM
Top housing material
Polycarbonate
Bottom housing material
Nylon
Bottom housing material
Nylon
Mount type
PCB (5-pin)
Mount type
PCB (5-pin)
Spring
22mm single-stage spring
Spring
22mm single-stage spring
Housing materials
The HMX FJ400 and the HMX Sillyworks Hyacinth V2U feature notably distinct materials for their top housings, which greatly influences their respective sound profiles. The FJ400 utilizes a high-quality POM (polyoxymethylene) for its top housing, which contributes to a sound that is deeper and more muted compared to the sharper sound produced by the Hyacinth V2U's polycarbonate top housing. The stiffer nature of polycarbonate enhances the clarity and resonance of sound, resulting in a more vibrant auditory experience. While both materials have their unique characteristics, the FJ400's POM housing offers a softer, more rounded timbre, contrasting sharply with the high-pitched and crisp output of the Sillyworks model.
Both switches, however, share the same bottom housing material: nylon. This classic material contributes to a deeper and fuller sound profile, thanks to its softer, sound-absorbing properties. As a result, both the HMX FJ400 and the HMX Sillyworks Hyacinth V2U will deliver richer, more rounded sound experiences when bottoming out, regardless of the differences in their top housings. This shared nylon bottom housing means that when typing on either switch, the characteristics of the nylon will be prominent, providing a consistent sound that appeals to those who appreciate a deeper auditory feedback when typing.
In considerations of overall performance and sound output, it's clear that the top and bottom housings in these switches serve complementary roles. The softer POM material of the FJ400 and the sharper polycarbonate of the Hyacinth V2U both leverage nylon's deeper sound, creating a balance between muted and bright tones depending on the key press. Hence, while the top housing in each switch might yield different results in terms of sound signature, the nylon bottom housing ensures a consistent depth and fullness in sound that ties their characteristics together. Ultimately, enthusiasts can find favorable outcomes in using either switch, as both exploit nylon's acoustic qualities while offering distinct experiences in the high-frequency sound realm.
Weight
The HMX FJ400 and the HMX Sillyworks Hyacinth V2U linear switches exhibit notable differences in both actuation and bottom out forces, influencing the typing experience they offer. The FJ400 requires an actuation force of 50 grams and a bottom out force of 58 grams, while the Hyacinth V2U has a lighter actuation force of 45 grams and a bottom out force of 52 grams. This means that the FJ400 is the heavier option, providing a more substantial feel for typists who prefer a stronger push sensation, making it ideal for those who enjoy a firmer typing experience. In contrast, the lighter Hyacinth V2U may appeal to users looking for a more effortless key press, which can be beneficial during extended typing sessions or gaming marathons. Overall, while both switches fall within the medium to medium-light category, the FJ400’s heavier forces may lead to a more physically engaging experience compared to the smoother, lighter actuation of the Hyacinth V2U.
Travel distance
The HMX FJ400 linear switch and the HMX Sillyworks Hyacinth V2U linear switch differ slightly in their travel distances, with the FJ400 measuring 3.8 mm and the Hyacinth V2U at 3.9 mm. This makes the FJ400 the shorter option and the Hyacinth V2U the longer one. Although both switches are close in distance, the extra 0.1 mm in the Hyacinth V2U can provide a slightly different tactile experience. Gamers may prefer the FJ400 for its faster response time, while those who enjoy a more pronounced key press might gravitate towards the Hyacinth V2U for its deeper travel. Ultimately, your choice will depend on your personal preference for responsiveness versus key depth.
Price comparison
Which switch is more bang for your buck?
The HMX FJ400 has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the FJ400 for $3.29.
The HMX Sillyworks Hyacinth V2U has an MSRP of $3.50 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Sillyworks Hyacinth V2U for $2.91.
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
In terms of sound, the HMX FJ400 linear switch is characterized by a balanced sound profile that fits well within the middle ground of the HMX Film switch lineup. This neutrality allows it to be versatile, catering to both casual and more serious typists without being overly intrusive. In contrast, the HMX Sillyworks Hyacinth V2U switch produces a sound that can be described as softer and bassier due to its nylon construction, while also presenting a more subdued sound signature. This switch’s unique characteristics allow it to blend traditional typing experiences with a modern touch, making it suitable for varied environments, whether in the office or at home. Both switches will deliver a pleasant acoustic experience, but the Sillyworks V2U particularly stands out with its bassy undertones.
When it comes to feel, the FJ400 is not explicitly detailed, but one can infer from the characteristics of other HMX Film switches that it likely offers a satisfying and smooth keystroke. Conversely, the HMX Sillyworks Hyacinth V2U is noted for its polished and silky feel, which means it promotes low friction during typing and an overall refined experience. The combination of a fuller travel distance and the added bounciness from its 22mm spring enhances the tactile feedback you receive while typing. Thus, while the exact feel of the FJ400 is not defined in the provided information, the Hyacinth V2U provides an exceptionally smooth and comfortable typing experience, likely appealing to those who enjoy a more traditional typing sensation.
In summary, both switches have distinctive qualities that cater to different preferences. The HMX FJ400 linear switch offers a balanced sound profile, while the HMX Sillyworks Hyacinth V2U provides a softer, bassy response complemented by its polished and silky feel. For anyone looking for a versatile switch, the FJ400 may be ideal, while those who prefer a touch of tradition with a refined modern experience may gravitate towards the Hyacinth V2U. Ultimately, both switches are designed to enhance the typing experience, and depending on your personal preferences for sound and feel, you can find satisfaction in either choice.
Conclusion
Ultimately, when deciding between the HMX FJ400 linear switch and the HMX Sillyworks Hyacinth V2U linear switch, consider your specific typing preferences and requirements. If you prefer a medium bottom-out force that strikes a harmonious balance and a sound profile that is subtle yet refined, the FJ400 might be your best pick. It offers a versatile typing experience suitable for various settings, whether at home or in the office. On the other hand, if you favor a lighter touch with a bottom-out force that makes typing feel effortless, the Sillyworks Hyacinth V2U is for you. With its fuller travel distance and bouncier spring, it provides a nostalgic typing feel reminiscent of traditional keyboards. Additionally, its silky smoothness and bassier sound profile could make it particularly appealing if you seek a quieter yet satisfying typing experience. In conclusion, your choice should depend on whether you value a medium, balanced approach with the FJ400 or a softer, more traditional typing experience with the Hyacinth V2U.
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