HMX FJ400 vs. TTC Silent Red
An in-depth look at the HMX FJ400 and the TTC Silent Red 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 TTC Silent Red present two intriguing options for enthusiasts seeking a linear feel. The FJ400, positioned as the middle ground in the HMX Film switch lineup, is celebrated for its balanced sound profile, making it a great choice for users who appreciate a blend of tactile feedback and auditory feedback without overwhelming noise. On the other hand, the TTC Silent Red stands out for its focus on a smooth, seamless typing experience, designed specifically for quiet environments. Its muted sound profile makes it ideal for office settings or shared living spaces, while the padded bottom-out feel enhances comfort for extended typing sessions. Both switches offer unique advantages, whether you prioritize a balanced acoustic experience with the FJ400 or the whisper-quiet performance of the Silent Red. However, let's dive in a bit deeper beyond generalities so you can best decide on the switch that suits your preferences.
By the numbers
Technical specifications
Actuation force
50g
Actuation force
45g
Bottom-out force
58g
Bottom-out force
63.5g
Pre-travel
2.00 mm
Pre-travel
1.90 mm
Total travel
3.80 mm
Total travel
3.70 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Partial box
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
Plate (3-pin)
Spring
22mm single-stage spring
Spring
Stainless steel
Housing materials
When comparing the housing materials of the HMX FJ400 and the TTC Silent Red, a distinct contrast emerges in the choice of plastics for the top housing. The FJ400 utilizes a POM (polyoxymethylene) top housing, noted for its ability to produce a unique sound profile that is deeper and more muted. This characteristic can enhance a more subdued typing experience. In contrast, the Silent Red features a polycarbonate top housing, which is recognized for its sharper, higher-pitched sound. Polycarbonate's rigidity contributes to a clear and resonant sound profile, making it excel in scenarios involving RGB lighting due to its translucency. While both materials serve the functional purpose of housing, they forge distinctly different auditory experiences that cater to varied user preferences.
Both switches share a commonality in their bottom housing, which is constructed from nylon. Regardless of the differences in their top housings, the nylon base in both the FJ400 and the Silent Red provides a consistent foundation for sound and feel. Typing on a nylon bottom housing delivers a deeper and fuller sound, as this softer material absorbs sound waves more effectively than harder options. Consequently, users can expect a rounder and more dulcet auditory experience from both switches, irrespective of the differing top housings. This similarity underscores the enduring popularity and reliability of nylon in the crafting of quality switch bases.
The interplay of the top and bottom housing materials is crucial in shaping the overall typing experience, and understanding their distinctive characteristics is key to predicting user satisfaction. For the FJ400, the muted sound profile from the POM top coupled with the fullness from the nylon bottom offers a unique blend that may appeal to those favoring a more understated tactile response. Conversely, the crisper sounds delivered by the Silent Red’s polycarbonate top can excite users looking for a pronounced auditory feedback combined with the warm absorption of the nylon base. Ultimately, although the top materials diverge, the shared nylon bottom ensures that both switches yield rich sound experiences, allowing users to find satisfaction in different aspects of their typing journey.
Weight
When comparing the actuation force and bottom out force of the HMX FJ400 and the TTC Silent Red linear switches, there are notable differences between the two. The FJ400 has an actuation force of 50 grams, while the Silent Red features a slightly lighter actuation force of 45 grams. This means that the Silent Red is generally easier to press down, making it potentially more comfortable for extended typing or gaming sessions, especially for those who prefer a lighter touch. However, the bottom out forces tell a different story; the FJ400 requires 58 grams to bottom out, whereas the Silent Red has a heavier bottom out force of 63.5 grams. Therefore, while the Silent Red is lighter at the actuation stage, it necessitates more force when bottoming out, providing a firmer conclusion to the keystroke. Ultimately, the FJ400 offers a more balanced experience with a medium feel, while the Silent Red caters to users looking for a lighter actuation but a heavier bottoming out sensation.
Travel distance
When comparing the travel distances of the HMX FJ400 and the TTC Silent Red linear switches, there is a slight yet notable difference. The FJ400 has a travel distance of 3.8 mm, while the Silent Red measures 3.7 mm. This makes the Silent Red the shorter option, providing a marginally quicker response time, which can be advantageous for gamers looking for faster actuation. In contrast, the FJ400 offers a deeper travel distance, which may better suit users who prefer a more tactile and substantial keypress experience. For those who enjoy the traditional feel of a deeper switch, the FJ400 would be the preferable choice, whereas users seeking rapid actuation might lean towards the Silent Red due to its shorter travel. Overall, while both switches provide a nearly similar experience, the distinction in travel distance could cater to varying preferences in typing feel and responsiveness.
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 TTC Silent Red has an MSRP of $5.28 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Silent Red for $4.38.
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 offers a balanced profile, making it suitable for various environments where noise management might be a concern. While it isn't touted for being particularly loud or quiet, it occupies a middle ground that caters to those looking for a pleasant auditory experience without extreme characteristics. On the other hand, the TTC Silent Red linear switch is explicitly designed for quiet operation. With its muted sound profile, it excels in reducing keyboard noise, making it ideal for office and shared living environments where excessive sound can be disruptive. Thus, while both switches provide a moderate auditory experience, the FJ400 is more versatile, while the Silent Red is specifically tuned for silence.
When it comes to feel, the FJ400 switch maintains a smooth operation, aligning with what many users seek in a linear switch. While specific descriptors for its tactile feedback are not detailed, one can expect it to provide a uniform keystroke without any significant resistance, similar to other linear switches in its category. In contrast, the TTC Silent Red delivers a buttery and polished typing experience characterized by smooth, fluid keystrokes. Its mild nature ensures that the overall typing sensation is gentle and approachable, allowing for extended typing sessions without discomfort. The effective finish of the Silent Red contributes to the seamless feel, making it a popular choice among users looking for comfort in their typing experience.
In summary, both the HMX FJ400 and TTC Silent Red switches offer distinct yet appealing attributes suited for different user preferences. The FJ400 serves well for those who want a balanced sound and feel, while the Silent Red caters specifically to individuals prioritizing a quiet and comfortable typing experience. Depending on your priorities—whether you lean toward versatility or tranquility—you can choose either switch with confidence, as they both hold their own merits in the realm of mechanical keyboard switches.
Conclusion
To sum up, your choice between the HMX FJ400 linear switch and the TTC Silent Red linear switch largely depends on your individual typing preferences and the environment in which you plan to use your mechanical keyboard. If you're seeking a well-rounded switch with a balanced sound profile and a medium bottom-out force of 58 grams, the FJ400 might be your ideal choice. It's great if you enjoy a bit of feedback without the noise, making it suitable for a personal workspace where you may not need to worry about disturbing others. On the other hand, if you prioritize a quieter experience, especially in shared spaces like offices or living rooms, the TTC Silent Red, with its medium-heavy bottom-out force of 63.5 grams, is likely the better option. This switch offers a muted and buttery typing experience, minimizing any disruptive sounds while maintaining a smooth feel throughout your keystrokes. In essence, choose the FJ400 for a balanced and slightly lively typing environment, while opting for the Silent Red when quietude and smoothness are your top priorities.
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