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If you want replacement pads built specifically around memory foam over-ear comfort for Sony MDR-XB950BT and MDR-XB950B1 headphones, choose Krone Kalpasmos Replacement Ear Pads; if you need white protein-leather pads for Zihnic Bluetooth over-ear headphones, choose YDYBZB White Ear Pads. They are not interchangeable — the fit list decides it before anything else does. One is a repair part for two specific Sony models. The other is a cosmetic-and-comfort refresh for a Zihnic headset.
• Krone Kalpasmos biggest strength: memory foam core plus skin-friendly protein leather sized for Sony MDR-XB950BT / MDR-XB950B1, with noise isolation from a foam core that molds to head shape.
• Krone Kalpasmos biggest trade-off: it will not fit the Sony MDR-XB950N1, whose pads are larger, and it is not a universal pad — the model list is narrow.
• YDYBZB biggest strength: a white protein-leather pad with firmer memory foam that YDYBZB says relieves clamping pressure and isolates sound, sized at 90 x 70 x 20 mm.
• YDYBZB biggest trade-off: compatibility is stated only for Zihnic Bluetooth over-ear headphones, and the listing carries no warranty.
• Who Krone Kalpasmos is for: owners of Sony MDR-XB950BT or MDR-XB950B1 whose original cushions are worn, flattened or cracking.
• Who YDYBZB is for: Zihnic over-ear owners who want a white pad refresh and less clamp pressure on long sessions.
This is a repair part, and it behaves like one. Krone Kalpasmos builds it for two models only — Sony MDR-XB950BT and MDR-XB950B1 — and the brand is explicit that it does not fit the MDR-XB950N1 because that model's pads are physically bigger. If you own either of the two supported Sonys, that specificity is the point: the pad was dimensioned for your headphone rather than trimmed down to fit a dozen. Dimensions land at roughly 85 x 83 x 28 mm, or about 3.34 x 3.26 x 1.1 inches, which lines up with an over-ear cup rather than an on-ear disc.
The comfort story is memory foam wrapped in protein leather — a smooth, soft surface that Krone Kalpasmos frames as comfortable enough that you forget the headphone is on. I read that as the two-part claim it is: the foam compresses to your head shape, and the leather keeps the contact surface slick instead of grippy. The noise-isolation claim comes from the same place. A foam core that conforms and sits close to the ear blocks more surrounding noise than a flattened, hardened old cushion does, which is why a pad swap often reads as a sound upgrade even though nothing inside the driver changed.
Krone Kalpasmos also makes a maintenance argument worth repeating: the brand suggests changing headphone ear pads every seven to eight months, because sweat accumulates in long-used cushions and old foam becomes a less hygienic place to press your ear against. Whether you follow that schedule exactly is your call, but the logic holds for anyone who wears a headset daily.
YDYBZB White Ear Pads: Who It's For
YDYBZB takes a different approach. Where Krone Kalpasmos targets two named Sony models, this pad is stated as compatible with Zihnic Bluetooth over-ear headphones — one brand, one category, no broader claim. The package is deliberately plain: one pair of white protein-leather ear pads, nothing else. If you want a color change as much as a comfort change, white is the entire visual premise here, and it is a distinctly different look from the black or red you would typically find on a stock headset.
The spec sheet gives real numbers to work with. Thickness is 0.79 inches (20 mm), width 2.76 inches (70 mm), length 3.54 inches (90 mm) — an over-ear footprint with a moderately thick cushion. YDYBZB pairs a skin-friendly protein-leather surface with a memory foam core, and describes the foam as firmer. That word matters. A firmer foam pushes back instead of collapsing, which is exactly what you want if your complaint is clamp pressure: the pad absorbs some of the squeeze rather than letting the headband deliver all of it straight to your skull. YDYBZB frames the payoff as relieving pressure during long listening sessions and keeping comfort at the level where you forget the headphones are on.
The firmer core also does acoustic work. YDYBZB says the ear-conforming fit isolates sound from your surroundings while enhancing the beat coming through — the same sealing principle Krone Kalpasmos relies on, just described with more emphasis on low end. The protein leather is pitched as professional-grade and designed for long-term, crack-free durability, which is the failure mode that sends most people shopping for replacement pads in the first place.
Buy it if you own Zihnic Bluetooth over-ear headphones, want white pads, and your main gripe is clamping pressure or worn-out cushions. Skip it if you own Sony headphones — including the XB950BT and XB950B1 — or anything outside the Zihnic over-ear family. Note also that the listing states no warranty, so the durability claim rests on the material description rather than a coverage promise.
• Own a Sony MDR-XB950BT or MDR-XB950B1 → Krone Kalpasmos Replacement Ear Pads. It is the only one of the two stated to fit those models.
• Own the Sony MDR-XB950N1 → neither. Krone Kalpasmos explicitly excludes it because its pads are larger.
• Own Zihnic Bluetooth over-ear headphones → YDYBZB White Ear Pads. That is the compatibility YDYBZB states.
• Want a white finish → YDYBZB White Ear Pads. Krone Kalpasmos offers red, black and blue, not white.
• Want a thicker cushion → Krone Kalpasmos Replacement Ear Pads. Its pads measure about 1.1 inches deep against YDYBZB's 0.79 inches (20 mm).
• Dealing with strong clamping pressure → YDYBZB White Ear Pads. Its firmer memory foam is specifically framed around relieving clamp force on long sessions.
• Dealing with a flattened, sweaty, hardened old cushion → Krone Kalpasmos Replacement Ear Pads. Protein leather plus conforming memory foam is a straightforward hygiene-and-comfort reset.
• Want light weight → YDYBZB White Ear Pads. Its listed item weight is 4.54 g versus 26.67 g for the Krone Kalpasmos pair.
• Want a written warranty → Krone Kalpasmos Replacement Ear Pads. YDYBZB states no warranty.
In my opinion, the deciding factor here is not foam quality — both use protein leather over memory foam, and both make the same basic isolation argument. It is fit. If you own a Sony MDR-XB950BT or MDR-XB950B1, I would buy Krone Kalpasmos Replacement Ear Pads, because a pad that is dimensioned for your headphone will seat, seal and stay put the way a generic pad will not. If you own Zihnic Bluetooth over-ear headphones, I would buy YDYBZB White Ear Pads, especially if clamp pressure is your complaint and you like the white look. Check the current price on Amazon before you commit, and confirm your exact model against the compatibility list first — that single check decides this comparison for you.
can you sleep with over ear headphones
You can physically wear over-ear headphones while lying down, but the pads are the part that decides whether it is tolerable. Both options here use memory foam, which compresses against a pillow instead of fighting it. Krone Kalpasmos pads are about 1.1 inches deep and YDYBZB pads are 0.79 inches (20 mm), so the thinner YDYBZB pair creates less bulk between your ear and the surface. Neither brand markets these as sleep-specific pads, so treat it as a side effect of the foam, not a design promise.
how to wear over ear headphones
The pads should sit around your ear, not on top of it — the ear itself rests inside the cushion opening. Krone Kalpasmos pads measure roughly 85 x 83 mm and YDYBZB pads 90 x 70 mm, both over-ear footprints rather than small on-ear discs. Set the headband so the pads seal against the sides of your head without pressing the ear flat. The seal is what delivers the noise isolation both brands describe.
how to wear over ear headphones properly
Properly means a full seal with even pressure and no gaps at the top or bottom of the pad. Slide the headband to a length where both cups contact your head evenly, then check that the foam has conformed rather than folded. Krone Kalpasmos relies on memory foam that molds to your head shape; YDYBZB relies on a firmer foam that conforms while resisting clamp force. If you feel a pinch point rather than gentle pressure, the headband adjustment is off.
how should over ear headphones fit
They should feel snug but not tight, with the pad compressed gently all the way around your ear. Pressure should spread across the foam, not concentrate on one spot — which is the exact problem YDYBZB says its firmer memory foam is built to relieve on strong-clamping headphones. Krone Kalpasmos approaches the same goal from the other direction, with a softer memory foam core that sits close to the ear. Either way, if the pads hurt after an hour, the fit is wrong, not the pad material.
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