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Updated: 2026-10-04 · 6 min read · Independent comparison
If you want maximum headphone compatibility and a like-for-like swap that keeps your on-ear sound intact, choose Krone Kalpasmos Professional Replacement Ear; if you need a full comfort and sound upgrade kit built specifically for the Astro A50 GEN4, choose CCRE Velour Earpads Replacement.
• Krone Kalpasmos biggest strength: one 70mm pad that fits a long list of on-ear headphones — JBL, Panasonic Technics, Logitech and several Sony models — in white PU leather.
• Krone Kalpasmos biggest trade-off: it is a strict replacement part, not an upgrade — it only fits 70mm round on-ear cups and changes nothing about how your headphones sound.
• CCRE biggest strength: a complete mod kit (two ear cushions, a headband and two microphone foam covers) in thicker memory foam, so you refresh the whole headset, not just the pads.
• CCRE biggest trade-off: it is locked to the Astro A50 GEN4, and the thicker pads must be removed before you drop the headset on its charging dock.
• Pick Krone Kalpasmos if you own on-ear headphones with worn-out pads and want to restore them cheaply and simply.
• Pick CCRE if you own an Astro A50 GEN4 and want a plusher fit plus a claimed lift in sound.
This is a maintenance part, and it knows it. The Krone Kalpasmos pads are made from PU leather over sponge, with fine stitching and an ergonomic lip designed to grip the cup edge and stay put. The headline spec is the size: 70mm, or about 2.76 inches across. That single number is what makes or breaks the purchase, because these fit round on-ear cups and nothing else. There is no memory foam mentioned here, no headband, no microphone foam — just two earpads built to sit on top of a headset you already like.
The compatibility list is where this pad earns its keep. JBL T450BT, JBL T500BT, JBL Tune 600BT, Panasonic Technics RP-DJ1200 and RP-DJ1210, Logitech H390 and H530, plus Sony models like the MDR-ZX110, MDR-ZX330BT, WH-CH500 and DR-BT101. If your headset is on that list, this is close to a plug-and-play repair. Installation is a four-step peel-and-tuck: pull the old pads off, clean the cup, ease the new lip into the groove from one side, then stretch it around and rotate to seat it. Krone Kalpasmos also includes a written tutorial and notes that the pads should be swapped out every seven to eight months, which tells you the intended lifespan is roughly half a year of daily use.
CCRE Velour Earpads Replacement: Who It's For
The CCRE kit plays a different game entirely. This is a mod kit for one headset — the Astro A50 GEN4 — and it delivers a bundle: two ear cushions, one headband, and two microphone foam covers. So instead of patching one worn spot, you are refreshing the three contact points that wear out fastest on a gaming headset: the pads, the headband, and the mic foam.
The material is the selling point. CCRE uses a thicker memory foam, and the brand claims it enhances the sound coming through the headphones. That claim is worth reading carefully: thicker foam changes the seal and the distance between driver and ear, which in practice tends to shift bass and isolation rather than "improve" sound in an absolute sense. Your mileage will depend on your head and your taste. What the specs do make clear is the comfort angle — thicker memory foam is the whole design intent here, aimed at longer sessions without the pressure hotspots that flattened stock pads create.
Installation is described as simple: align the attachment points and press the pads on. No stretching, no tutorial steps about tucking a lip into a groove. But there is one quirk you have to live with, and it is stated plainly: because the pads are thicker, you have to remove them before using the Astro A50 charging dock. That is a real friction point if you dock your headset every night. If you charge over USB or use a stand instead, it is a non-issue.
Who should buy it? Astro A50 GEN4 owners who find the stock pads thin, hot, or flattened, and who want to refresh the headband and mic foam at the same time. Who should skip it? Everyone else — the compatibility field lists only CCRE, and the design is built around the A50 GEN4 mount. Black memory foam also means it hides wear better than white leather, if that matters to you.
• Best for broad headphone compatibility → Krone Kalpasmos. One 70mm pad covering JBL, Logitech, Panasonic Technics and multiple Sony models.
• Best for a single-model, all-in-one refresh → CCRE. Two cushions, a headband and two mic foams in one kit.
• Best if you want your original sound untouched → Krone Kalpasmos. These pads are tuned to preserve the existing tuning.
• Best if you want a comfort-first change → CCRE. Thicker memory foam is the entire point of the design.
• Best if you dock your headset to charge → Krone Kalpasmos, or CCRE only if you are fine pulling the pads off every time.
• Best for on-ear office and call headsets → Krone Kalpasmos. The Logitech H390 and H530 are both on the compatibility list.
• Best for gaming sessions → CCRE. The A50 GEN4 kit is built around a gaming headset and its wear points.
• Best for a quick, low-fuss repair → Krone Kalpasmos. Peel, tuck, rotate — no charging-dock caveats.
In my opinion, most people searching this comparison own ordinary on-ear headphones with cracked or flattened pads, and for them the Krone Kalpasmos set is the smarter buy: it fits a genuinely long list of headsets, installs in minutes, and does not interfere with anything else you do with your headphones. The CCRE kit is the better product for one specific owner — the Astro A50 GEN4 gamer who wants a plusher, thicker feel and a full refresh of pads, headband and mic foam, and who can live with removing the pads before docking. If you are that owner, buy CCRE. If you are not, buy Krone Kalpasmos and keep it simple.
FAQ
Only if your cups are 70mm round on-ear cups. The listed models include JBL T450BT, T500BT and Tune 600BT, Logitech H390 and H530, Panasonic Technics RP-DJ1200/1210, and Sony MDR-ZX110, MDR-ZX330BT, WH-CH500 and DR-BT101. If your model is not listed, measure your cup diameter before ordering.
Based on the specs, no. The kit is designed around the A50 GEN4 mount, and the compatibility information lists only CCRE. Treat it as a single-model accessory.
CCRE states that the thicker memory foam enhances the sound. What is certain from the design is that thicker foam changes the seal and the ear-to-driver distance, which typically affects bass and isolation. Whether you prefer the result is a personal call.
Krone Kalpasmos suggests changing ear cushions roughly every seven to eight months for hygiene, and notes these can last 180 days or more. If your pads are flaking, cracking, or no longer gripping the cup, that is your signal regardless of the calendar. Check the current price on Amazon before you commit.
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