H
LINEAR · 45g
linear medium-thocky HMX

HMX Sillyworks Hyacinth

The HMX Hyacinth V2 is a 45g linear with a polycarbonate top, nylon bottom and POM stem, for a smooth, balanced keystroke in standard and long-travel forms.

4.0/5
4.0 4.0 · our rating
45g
Actuation
1.9mm pre-travel
3.5mm
Travel
total key travel
4.0/5
Smoothness
our feel rating
3/5
Noise level
medium-thocky

How it feels

Smoothness silky → scratchy 8.0

How it sounds

medium-thocky
Profile medium-thocky
Noise level 3/5
Spring ping None

Full review

Quick Summary

The HMX Sillyworks Hyacinth is a 45g linear that pairs a polycarbonate top housing with a nylon bottom and a POM stem. That mix gives it a balanced, medium-thocky sound, a touch of PC brightness on top with nylon warmth underneath. It comes in a standard V2 and a longer-travel V2U, and both are smooth all-rounders for typing or gaming.

Specs and Feel

The Hyacinth runs 45g actuation and 52g bottom-out on a 22mm KOS single-stage spring, with 1.9mm pre-travel. The V2 has a 3.5mm total travel, while the V2U extends that to 3.9mm for a deeper bottom. The POM stem keeps the glide smooth and consistent, and the PC-top-over-nylon-bottom housing is the acoustic story: PC adds a little crispness and clarity, while the nylon bottom rounds it off and absorbs harshness. The result is a medium-thocky sound that is neither sharp nor muddy. Stem wobble is well controlled, and the factory lube is applied competently enough that the switch feels finished stock.

Tuning

The Hyacinth is good out of the box and needs nothing to be enjoyable. If you want to refine it, a thin housing film deepens the sound and tightens the bottom-out, and bag-lubing the springs will silence any faint ping. Spring swaps are optional; the stock 45g weighting is well judged. Choose the V2U if you prefer a longer, fuller keystroke; the standard V2 if you like a snappier bottom.

Verdict

Buy the Hyacinth if you want a no-fuss, balanced linear that sounds good stock and works for everything. It sits between the warmer, softer HMX Nap and the brighter, clackier Xinhai, a sensible middle ground. Pick the V2 for a tighter stroke or the V2U for depth. Skip it only if you are chasing a very specific sharp or very deep signature, where a more specialized switch will serve you better.

Frequently asked

What is the difference between the Hyacinth V2 and V2U?

They share the same 45g/52g weighting, POM stem and PC-over-nylon housing. The difference is travel: the standard V2 has a 3.5mm total travel, while the V2U is a long-pole-style 3.9mm for a deeper, fuller stroke.

How heavy is the Hyacinth?

It actuates around 45g and bottoms out near 52g, a comfortable medium weight that works for both typing and gaming.

Is the Hyacinth good stock?

Yes. It comes factory lubed and feels smooth out of the box, so most people can use it as-is without any tuning.

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