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HMX FJ400 vs. TTC Silent Frozen (V2)

An in-depth look at the HMX FJ400 and the TTC Silent Frozen (V2) switches—which one is the best fit for you?

Overview

When it comes to choosing mechanical keyboard switches, the HMX FJ400 and the TTC Silent Frozen (V2) are two popular linear options that cater to different preferences. The FJ400, positioned as the middle ground in the HMX Film switch lineup, features a balanced sound profile that appeals to users seeking a versatile typing experience. Its well-rounded characteristics make it suitable for both gaming and typing, providing a satisfying feedback without being overly loud. In contrast, the TTC Silent Frozen (V2) is specifically designed for those who prioritize a quiet environment and smooth operation. With its muted sound profile and pillowy feel, this switch excels in delivering a serene typing experience, making it ideal for shared spaces or late-night gaming sessions. Each switch has its unique strengths, with the FJ400 focusing on adaptability and the Silent Frozen (V2) emphasizing tranquility. 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

50g

Actuation force

39g

Bottom-out force

58g

Bottom-out force

43g

Pre-travel

2.00 mm

Pre-travel

2.00 mm

Total travel

3.80 mm

Total travel

3.50 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

Polycarbonate

Mount type

PCB (5-pin)

Mount type

Plate (3-pin)

Spring

22mm single-stage spring

Spring

Silver white spring

Housing materials

The HMX FJ400 and the TTC Silent Frozen (V2) illustrate a contrasting approach to housing materials that significantly influences their auditory characteristics. The FJ400 utilizes POM for its top housing, which lends itself to a deeper, more muted sound profile that creates a distinctive auditory experience. Conversely, the Silent Frozen (V2) employs polycarbonate for both its top and bottom housings, generating a sharper, higher-pitched sound that is resonant and crisp. While both materials exhibit unique aural qualities, the FJ400's choice of POM for the top housing suggests a softer sound experience, perfect for those seeking a more subdued keystroke sound.

When examining the bottom housing, the differentiation continues. The FJ400 garners a fuller sound from its nylon material, known for its ability to absorb sound and create a rounder auditory profile. In contrast, the Silent Frozen (V2) maintains the polycarbonate for its bottom housing, which contributes to a consistent clarity and brightness in sound. This choice in material reinforces the overall character of the switch, ensuring that both the top and bottom contribute to a more pronounced, cutting sound signature found in polycarbonate constructions. As such, the bottom-out feel and sound of the FJ400 juxtapose the crispness of the Silent Frozen (V2), with nylon providing a softer return contrasted against the clarity derived from polycarbonate.

In terms of aesthetic appeal and functionality, both switches cater to different user preferences. The translucent polycarbonate used in the Silent Frozen (V2) not only enhances the RGB lighting effects but also plays a significant role in reinforcing the sharper sound profile. While the FJ400’s POM housing lacks the vibrant visual aspect of RGB illumination, its sound profile still delivers a uniquely pleasing typing experience, especially suited for those who value a more muted acoustics. Despite the differing materials, players can achieve an effective performance with either switch; the FJ400 offers a deeper response for those seeking efficiency with softness, while the Silent Frozen (V2) brings a crisper aspect for users who prefer precision. The variances in sound profiles and tactile feedback highlight how material choices shape the overall typing experience, allowing users to select based on their auditory and tactile preferences.

Weight

When comparing the HMX FJ400 linear switch and the TTC Silent Frozen (V2) linear switch, notable differences in actuation and bottom out forces emerge. The FJ400 features a higher actuation force of 50 grams and a bottom out force of 58 grams, placing it in the medium range, providing a heavier tactile experience that some users might appreciate for its substantial feel during typing. In contrast, the Silent Frozen (V2) is significantly lighter, with an actuation force of 39 grams and a bottom out force of 43 grams. This lighter profile makes it an appealing choice for those who prefer longer typing sessions as it may reduce finger fatigue. While the actuation and bottom out forces are distinct between the two switches, with the FJ400 being the heavier option and the Silent Frozen (V2) the lighter one, neither may deliver the same level of tactile feedback desired by users who favor a firmer key response.

Travel distance

When comparing the travel distances of the HMX FJ400 linear switch and the TTC Silent Frozen (V2) linear switch, it is clear that they cater to different user preferences. The FJ400 features a travel distance of 3.8 mm, making it the longer option, while the Silent Frozen (V2) has a shorter travel distance of 3.5 mm. This difference in travel distance can significantly affect the typing experience: the shorter distance of the Silent Frozen (V2) may provide quicker response times, appealing to gamers and those who prefer rapid keystrokes. Conversely, the slightly longer distance of the FJ400 might offer a more satisfying tactile experience for users who enjoy a hearty depth in their switches, potentially feeling less abrupt. Overall, if one prioritizes responsiveness and speed, the Silent Frozen (V2) is the better choice, while those who value a more pronounced key press may prefer the FJ400.

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 Frozen (V2) has an MSRP of $8.61 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Silent Frozen (V2) for $5.33.

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 comparing sound, the HMX FJ400 linear switch is characterized by a balanced sound profile, which strikes a harmonious middle ground among its counterparts in the HMX Film switch lineup. This means that while it is not overly loud, it also does not lean into the extreme quietness of other switches. In contrast, the TTC Silent Frozen (V2) boasts an extremely quiet sound profile, described as thocky, low-pitched, and muted. This combination results in a deep, rich, and satisfying sound without the typical clackiness associated with mechanical keyboards, making it ideal for those in shared spaces or environments where noise reduction is desired. Both switches' sounds can be influenced by external factors, such as the choice of keyboard case and keycaps, but the inherent nature of the TTC Silent Frozen (V2) distinctly favors those seeking minimal sound during their typing experience.

In terms of feel, the FJ400's experience is less defined in the provided information. However, the TTC Silent Frozen (V2) is noted for its extremely smooth, creamy, and buttery sensation during key presses. This switch facilitates an effortless typing experience, characterized by a light actuation force and a polished finish that reduces friction. The subtle resistance it offers makes it versatile for various uses, accommodating long typing sessions with reduced finger fatigue. While the FJ400's tactile experience remains unspecified, it is likely that users can expect a reasonably smooth feel as well, potentially resulting in a comfortable typing experience.

Overall, the HMX FJ400 linear switch offers a balanced sound and likely a decent feel, while the TTC Silent Frozen (V2) excels in its exceptionally quiet operation and smooth, plush typing experience. Those who prioritize low noise levels and a buttery tactile experience will lean toward the Silent Frozen (V2), whereas the FJ400 may appeal to users looking for a more versatile yet balanced alternative. Ultimately, personal preference will play a significant role in choosing between these two switches, as each provides distinctive functionalities that cater to different typing experiences and environments.

Conclusion

To conclude, when choosing between the HMX FJ400 linear switch and the TTC Silent Frozen (V2) linear switch, your specific needs and preferences will guide your decision. If you prefer a medium bottom-out force of 58 grams, which provides a bit more resistance and a balanced sound profile that isn't too overwhelming, the FJ400 is a solid choice. It is ideal for those who want a more traditional switch feel and sound while still enjoying a satisfying typing experience. On the other hand, if you seek a lighter and quieter option, particularly for shared workspaces or gaming where noise levels should be minimized, the TTC Silent Frozen (V2) with its 43 grams bottom-out force is perfect for you. Characterized by its creamy and buttery texture, this switch allows for long typing sessions without fatigue, making it suitable for both extended work and gameplay. In essence, your choice will hinge on whether you prioritize a more tactile experience with a pronounced sound, or a smooth, whisper-quiet experience that allows you to type without drawing attention.

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