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Kailh BCP vs. KTT Purple Star

An in-depth look at the Kailh BCP and the KTT Purple Star switches—which one is the best fit for you?

Overview

When it comes to the world of mechanical keyboard switches, the Kailh BCP and KTT Purple Star offer distinct experiences tailored to different typing preferences. The Kailh BCP, a reimagined take on the classic Black Cherry Pie switches, boasts a unique combination of creamy, viscous feedback with a bouncy sensation, along with a signature poppy and clacky sound profile that many enthusiasts find satisfying. Its user-friendly design eliminates common disassembly hassles, making it an appealing choice for those who appreciate both performance and convenience. In contrast, the KTT Purple Star is crafted entirely from POM, delivering a buttery smooth typing experience complemented by a neutral sound signature. With a lighter 45g bottom-out force, the Purple Star is particularly suitable for light typists seeking effortless keystrokes and comfort during extended typing sessions. Each switch brings its own set of advantages that cater to different needs, allowing users to make informed choices based on their preferences. 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

52g

Actuation force

43g

Bottom-out force

63.5g

Bottom-out force

50g

Pre-travel

1.40 mm

Pre-travel

1.80 mm

Total travel

3.50 mm

Total travel

3.50 mm

Factory lubed

Yes

Factory lubed

Yes

Stem construction

Standard

Stem construction

Partial box

Stem material

POM

Stem material

POM

Top housing material

Nylon

Top housing material

POM

Bottom housing material

Nylon

Bottom housing material

POM

Mount type

PCB (5-pin)

Mount type

PCB (5-pin)

Spring

20mm single-staged spring

Spring

Stainless steel

Housing materials

When comparing the housing materials of the Kailh BCP and KTT Purple Star switches, it is important to note the differences between their construction. The Kailh BCP utilizes nylon for both the top and bottom housings, a traditional material known for its sound-dampening qualities. Nylon's softer structure contributes to a sound that is deeper and fuller, effectively absorbing vibrations and minimizing harsher sound frequencies. This characteristic allows the BCP switches to produce a rounder, duller sound profile, which many users find appealing for a quieter typing experience.

In contrast, the KTT Purple Star features POM (Polyoxymethylene) for both its top and bottom housings. POM is recognized for creating a distinct sound that is also on the deeper side but tends to lean towards a more muted sound profile compared to nylon. This unique sound signature is a result of POM's different structural composition, which influences how it interacts with key presses. While the Purple Star's sound may not be as warm as that of the BCP, it presents a unique acoustic experience that can be especially enjoyable for tactile feedback enthusiasts.

Despite their differences, both switches are designed to offer satisfying auditory feedback, and users can achieve similar sound experiences through their respective material properties. For instance, while the BCP’s nylon creates a softer sound, the POM in the Purple Star provides a pleasing resonance that can rival the warmth of nylon if one prefers a slightly different auditory feel. Ultimately, users can expect a decently muted and deeper sound from both switches, making them suitable options for those seeking a balanced acoustical performance in their mechanical keyboards.

Weight

When comparing the Kailh BCP linear switch and the KTT Purple Star linear switch, a notable difference emerges in terms of actuation and bottom out forces. The BCP switch has a heavier actuation force of 52 grams and a bottom out force of 63.5 grams, positioning it as a medium-heavy option. In contrast, the Purple Star switch features a lighter actuation force of 43 grams and a bottom out force of 50 grams, making it more suitable for users who prefer a gentler typing experience. This lighter actuation force can facilitate longer typing sessions with less fatigue, while the BCP’s greater resistance offers a more robust tactile feel, appealing to those who enjoy a stronger push during use. Therefore, if you seek a lighter experience with a softer touch, the KTT Purple Star is your best bet, whereas the Kailh BCP is preferable for those favoring a more substantial keystroke.

Travel distance

The Kailh BCP linear switch and the KTT Purple Star linear switch both have a travel distance of 3.5 mm, which means they will provide similar tactile feedback when pressed. Since both switches have the same travel distance, users can expect a comparable experience in terms of key responsiveness and actuation feel. This similarity in travel distance allows for a consistent typing experience, making either switch a suitable choice for those seeking uniformity in their keyboard's performance. Overall, with both switches measuring 3.5 mm, there's no differentiation in this aspect, ensuring similar results when it comes to actuation depth.

Price comparison

Which switch is more bang for your buck?

The Kailh BCP has an MSRP of $5.00 per 10 switches. At Milktooth, we are able to pass on savings to our customers and offer the BCP for $4.75.

The KTT Purple Star comes in at $4.88 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

In terms of sound, the Kailh BCP linear switch produces a poppy and clacky sound profile that’s lively and engaging, making it ideal for typists who appreciate an auditory feedback during their typing sessions. The sound experience is enhanced by its unique design, allowing it to stand out in comparison to more muted options. On the other hand, the KTT Purple Star delivers a neutral sound signature that is characterized as low-pitched, offering a mellow and bass-heavy tone as opposed to the brighter, more upbeat sounds of the BCP. This means that while the BCP can bring a certain vibrancy to your typing, the Purple Star is much more subdued, which may be preferable in quieter environments.

When it comes to feel, the BCP offers a creamy, viscous, and elastic typing experience that many users find bouncy and satisfying. The switch's design allows for a unique tactile feedback that is both responsive and enjoyable, contributing to a dynamic typing experience. Conversely, the Purple Star provides a milder typing experience with easy-to-press characteristics. This switch demands minimal force to activate due to its light 45g bottom-out, making it an attractive choice for those who prefer a gentler touch. Its overall mildness means the Purple Star caters to a broader audience, ensuring comfort over long typing sessions without unnecessary fatigue.

In summary, when comparing the Kailh BCP and KTT Purple Star linear switches, you find distinct differences in both sound and feel. The BCP's poppy and clacky sound, along with its unique and bouncy feel, contrasts sharply with the Purple Star's neutral sound signature and easy-to-press, mild typing experience. If you're drawn to an engaging auditory experience and a more dynamic feel, the BCP might be your switch of choice. Meanwhile, if you prefer a quieter, smoother experience that requires less effort, the Purple Star would fit the bill nicely. Ultimately, selecting between these two switches boils down to personal preference and typing style, as they cater to different aspects of the typing experience.

Conclusion

To conclude, choosing between the Kailh BCP linear switch and the KTT Purple Star linear switch ultimately depends on your personal preferences and typing habits. If you enjoy a more substantial feel and a unique auditory experience, the BCP may be your best option; its medium-heavy 63.5g bottom-out force gives a satisfying resistance that many typists find gratifying, accompanied by a poppy and clacky sound profile that adds character to your typing. On the other hand, if you prefer lighter, effortless key presses and a smoother, more subdued sound, the Purple Star switches are an excellent choice. Their lighter 50g bottom-out force reduces finger fatigue, making them ideal for prolonged typing sessions, with a low-pitched sound that provides a mellow typing experience. Ultimately, your decision hinges on whether you value tactile feedback and sound characteristics or prioritize comfort and ease-of-press, allowing you to select the switch that best enhances your mechanical keyboard experience.

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