HMX Blue Topaz vs. KTT Grapefruit
An in-depth look at the HMX Blue Topaz and the KTT Grapefruit switches—which one is the best fit for you?
Overview
When it comes to choosing between mechanical keyboard switches, the HMX Blue Topaz and the KTT Grapefruit are two popular options to consider. The Blue Topaz linear switch stands out for its smooth actuation and lightweight feel, making typing a breeze with a clacky sound signature that adds to the typing experience. On the other hand, the KTT Grapefruit linear switch offers a soft and light feel with a unique "baritone" sound profile. While the Blue Topaz is known for being easy-to-press and clacky, the Grapefruit is categorized as low-pitched, neutral, and polished. Both switches have their own unique characteristics that cater to different preferences and typing styles. 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
40g
Actuation force
45g
Bottom-out force
48g
Bottom-out force
53g
Pre-travel
2.00 mm
Pre-travel
1.90 mm
Total travel
3.90 mm
Total travel
4.00 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
Ly
Stem material
POM
Top housing material
Polycarbonate
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
The HMX Blue Topaz and the KTT Grapefruit both feature polycarbonate top housings, which provide a sharper, higher-pitched, and crisper sound profile. This is due to the stiffness of polycarbonate, which contributes to a more clear and resonant sound. Additionally, the translucency of polycarbonate makes it ideal for switches with RGB lighting. However, the difference may lie in their bottom housings. The Blue Topaz utilizes a nylon bottom housing, which can elicit a deeper and fuller sound profile compared to the Grapefruit's polycarbonate bottom housing. Nylon's softer nature absorbs more sound, resulting in a duller and rounder sound.
Despite both switches having polycarbonate top housings, it is important to note that the bottom housing material plays a significant role in the overall sound and feel of the switch. The HMX Blue Topaz's nylon bottom housing contributes to a deeper and fuller sound profile, while the KTT Grapefruit's polycarbonate bottom housing may provide a different typing experience. The impact of the bottom housing is felt more during the bottom-out sound and feel, while the top housing has more influence on the sound when a key is released. This distinction in housing materials can lead to variations in the overall typing experience between the two switches.
While the HMX Blue Topaz and the KTT Grapefruit may share similarities in their polycarbonate top housings, the choice of bottom housing material can significantly impact the overall sound and feel of the switch. Nylon brings a deeper and fuller sound profile to the Blue Topaz, while polycarbonate may offer a different typing experience in the Grapefruit. Both switches offer unique characteristics based on their housing materials, highlighting the importance of considering all aspects of switch design when choosing a mechanical keyboard.
Weight
When comparing the actuation force and bottom out force of the HMX Blue Topaz linear switch and the KTT Grapefruit linear switch, one can see some differences in weight. The Blue Topaz has a lighter actuation force of 40 grams compared to the Grapefruit's 45 grams, making it easier to trigger keystrokes on the former. However, in terms of bottom out force, the Blue Topaz requires 48 grams, while the Grapefruit needs 53 grams, making the Grapefruit slightly heavier to press all the way down. Both switches fall on the lighter end of the spectrum, making them suitable for users who prefer a lighter typing experience. Those looking for a more substantial typing feel may lean towards the Grapefruit due to its slightly heavier forces. Ultimately, the choice between the two will depend on individual preferences for actuation and bottom out forces.
Travel distance
In comparing the travel distance of the HMX Blue Topaz linear switch and the KTT Grapefruit linear switch, we can see that the Blue Topaz has a slightly shorter travel distance of 3.9 mm compared to the Grapefruit's 4 mm. Both of these switches fall within the range of traditional travel distances, with 4.0 mm being the standard. Gamers may prefer the Blue Topaz for its slightly shorter travel distance, which can lead to faster response times. On the other hand, those who enjoy a more substantial keypress may prefer the Grapefruit with its slightly longer travel distance. Ultimately, the choice between the two switches will depend on personal preference for keypress depth and responsiveness.
Price comparison
Which switch is more bang for your buck?
The HMX Blue Topaz has an MSRP of $4.00 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the Blue Topaz for $3.49.
The KTT Grapefruit comes in at $3.41 per 10 switches.
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 Blue Topaz linear switch offers a clacky and sharp sound profile that is crisp, bright, and percussive. On the other hand, the KTT Grapefruit linear switch provides a low-pitched sound with a mellow tone along with a neutral sound profile suitable for a variety of uses. Depending on personal preference, users can choose between the more crisp sound of the Blue Topaz or the deeper sound of the Grapefruit.
Moving on to the feel of the switches, the HMX Blue Topaz linear switch is known for its easy-to-press nature, offering gentle resistance during key presses that require minimal force to activate. This light actuation force enhances typing efficiency and comfort, reducing finger fatigue during prolonged typing sessions. Conversely, the KTT Grapefruit switch is described as polished, providing a smooth and refined typing experience with reduced friction and seamless key travel. Users can decide between the effortless typing experience of the Blue Topaz or the polished feel of the Grapefruit.
Overall, both the HMX Blue Topaz and KTT Grapefruit linear switches have unique qualities that cater to different preferences. While the Blue Topaz offers a clacky sound and easy-to-press feel, the Grapefruit provides a low-pitched sound and polished typing experience. Depending on whether users prioritize sound or feel, they can make an informed decision between the two switches to enhance their mechanical keyboard setup. Ultimately, both switches offer quality performance and satisfying results, ensuring a pleasant typing experience for all users.
Conclusion
To sum up, when deciding between the HMX Blue Topaz linear switch and the KTT Grapefruit linear switch, consider your preference for actuation force and sound profile. If you prefer a lighter actuation force and a clacky sound signature, the Blue Topaz may be the better choice for you. On the other hand, if you prefer a slightly heavier actuation force and a low-pitched, polished sound profile, the Grapefruit switch could be more suitable. Ultimately, both switches offer unique features that cater to different preferences, so choose the one that aligns with your typing style and preferences.
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