HMX Blue Topaz vs. Outemu Cold Plum
An in-depth look at the HMX Blue Topaz and the Outemu Cold Plum switches—which one is the best fit for you?
Overview
When comparing the HMX Blue Topaz linear switch and the Outemu Cold Plum linear switch, both offer unique qualities that cater to different preferences. The Blue Topaz is favored for its smooth actuation and lightweight feel, providing a breezy typing experience with a visually striking glitter housing and clacky sound signature. On the other hand, the Cold Plum stands out for its thocky sound profile and fully nylon construction, delivering a smooth keystroke and satisfying sound for enthusiasts seeking a distinct typing feel. While the Blue Topaz is known for being easy to press and clacky, the Cold Plum offers a unique typing experience. 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
60g
Bottom-out force
48g
Bottom-out force
70g
Pre-travel
2.00 mm
Pre-travel
2.00 mm
Total travel
3.90 mm
Total travel
3.30 mm
Factory lubed
Yes
Factory lubed
Yes
Stem construction
Standard
Stem construction
Standard
Stem material
Ly
Stem material
Nylon
Top housing material
Polycarbonate
Top housing material
Nylon
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 features a polycarbonate top housing, which is known for creating a sharper, higher-pitched, and crisper sound profile. The translucent nature of polycarbonate makes it ideal for switches designed with RGB lighting in mind. On the other hand, the Outemu Cold Plum comes with a nylon top housing, which offers a deeper and fuller sound profile compared to polycarbonate. The softer nature of nylon absorbs more sound, resulting in a duller and rounder sound overall. While both materials have their own unique characteristics, the polycarbonate top housing of the Blue Topaz is more likely to provide a clearer and resonant sound, while the nylon top housing of the Cold Plum will offer a more subdued and mellow sound.
When it comes to the bottom housing of the switches, both the HMX Blue Topaz and the Outemu Cold Plum feature nylon in this component. This means that typing on either switch will elicit a deeper and fuller sound profile due to the softer nature of nylon that absorbs more sound compared to harder plastics. The bottom housing has more of an impact on the bottom-out sound and feel when the switch is pressed down, contributing to the overall typing experience on both switches. This similarity in bottom housing material ensures that users will experience a similar tactile response and sound feedback regardless of whether they choose the Blue Topaz or the Cold Plum.
In conclusion, while the top housing materials of the HMX Blue Topaz and the Outemu Cold Plum differ, the nylon bottom housing in both switches provides a consistent typing experience with a deeper and fuller sound profile. The polycarbonate top housing of the Blue Topaz offers a sharper, higher-pitched sound, ideal for those looking for a clearer and more resonant typing experience. On the other hand, the nylon top housing of the Cold Plum creates a duller and rounder sound, perfect for users who prefer a more muted sound profile. Ultimately, the choice between these switches will depend on individual preferences for sound and feel while typing.
Weight
When comparing the actuation force and bottom out force of the HMX Blue Topaz linear switch and the Outemu Cold Plum linear switch, it is evident that the Blue Topaz is lighter in comparison to the Cold Plum. The Blue Topaz has an actuation force of 40 grams and a bottom out force of 48 grams, making it a lighter option. In contrast, the Cold Plum has an actuation force of 60 grams and a bottom out force of 70 grams, indicating a medium-heavy feel. While the Blue Topaz offers a more lightweight typing experience, the Cold Plum provides a more substantial and tactile feeling due to its heavier forces. Both switches have distinct characteristics that cater to different preferences, with the Blue Topaz being better suited for longer typing sessions and the Cold Plum offering a more forceful typing experience for those who prefer a stronger push feel. Ultimately, the choice between the two switches will depend on individual preferences for actuation and bottom out forces.
Travel distance
The HMX Blue Topaz linear switch has a travel distance of 3.9 mm, while the Outemu Cold Plum linear switch has a travel distance of 3.3 mm. In this case, the Cold Plum has a shorter travel distance than the Blue Topaz. The traditional travel distance is around 4.0 mm, so both of these switches fall below that mark. Gamers may prefer the Cold Plum for its faster response time due to the shorter travel distance, while those who prefer a deeper key press may opt for the Blue Topaz with its slightly longer travel distance. Ultimately, choosing between the two switches will depend on personal preference and the type of typing or gaming experience desired.
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 Outemu Cold Plum comes in at $3.10 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 is known for its clacky sound that provides a sharp and snappy auditory experience with every keystroke. On the other hand, the Outemu Cold Plum switch is described as having a thocky sound profile, which offers a unique typing experience with a satisfying sound. Both switches aim to provide users with an enjoyable auditory feedback, but the Blue Topaz leans towards a crisp and bright sound, while the Cold Plum offers a distinct thocky tone. Ultimately, the sound preference comes down to personal taste and the overall setup of your keyboard.
In terms of feel, the Blue Topaz switch stands out for its lightweight and easy-to-press actuation, requiring minimal force to activate the keys. This smooth keystroke not only enhances the typing experience but also reduces finger fatigue during extended typing sessions. On the other hand, the Cold Plum switch's feel is not specified, but given its fully nylon construction, it may provide a sturdy and stable typing experience. Both switches aim to provide a responsive and enjoyable typing feel, with the Blue Topaz focusing on effortless typing and the Cold Plum possibly offering a more robust tactile feedback.
Overall, the HMX Blue Topaz linear switch and the Outemu Cold Plum linear switch offer unique qualities in terms of sound and feel. While the Blue Topaz provides a clacky sound and easy-to-press actuation for a smooth typing experience, the Cold Plum may offer a thocky sound profile with a sturdy construction for a distinct typing feel. Depending on your preference for sound and feel, both switches can deliver a satisfying typing experience, ensuring that you get similar results of smooth and enjoyable typing, regardless of your choice. When choosing between the two, consider factors such as sound preference, tactile feedback, and overall typing experience to find the switch that best suits your needs and preferences.
Conclusion
In closing, when deciding between the HMX Blue Topaz linear switch and the Outemu Cold Plum linear switch, consider your priorities. If you value a lightweight feel, smooth actuation, and a clacky sound profile, the Blue Topaz may be the ideal choice for you. On the other hand, if you prefer a medium-heavy key press, a unique thocky sound profile, and fully nylon construction, the Cold Plum could be the perfect fit. Ultimately, your decision will depend on whether you prioritize a super smooth typing experience with a light touch or a distinct and satisfying sound profile with a bit more resistance. Choose the switch that aligns best with your preferences and typing style to enhance your overall keyboarding experience.
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