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Updated: 2026-09-25 · 6 min read · Independent comparison
If you want a single set of memory foam tips that can transform the fit and noise isolation of the earbuds and earplugs you already own, choose Decibullz Custom Molded Memory; if you need a fresh pair of magnetic ear cushions to restore an aging pair of AirPods Max, choose ANKASI Ear Cushions.
• Decibullz Custom Molded Memory — biggest strength: Five pairs of medium memory foam tips that seal deeply and can push noise reduction up to 31 NRR when paired with Decibullz custom molded earplugs.
• Decibullz Custom Molded Memory — biggest trade-off: Foam is a consumable. Decibullz itself recommends swapping tips every 4–6 months, so you'll be buying again.
• ANKASI Ear Cushions — biggest strength: A drop-in magnetic replacement for worn AirPods Max cushions, with a stronger magnet ring, sealing rings and breathable mesh over slow-rebound foam.
• ANKASI Ear Cushions — biggest trade-off: It only fits AirPods Max 1 & 2. It does nothing for earbuds, earplugs or any other headphone.
• Pick Decibullz if you own earbuds or IEMs and your problem is fit, slippage or leakage.
• Pick ANKASI if you own AirPods Max and your problem is flattened, flaking or uncomfortable ear pads.
This is a maintenance part, not a gadget. You get five pairs of medium memory foam earbud tips in black, and the whole point is the seal. Foam expands to fill the shape of your ear canal instead of sitting against it the way silicone does, and that's what makes the difference on a noisy commute, on a flight, or in a workshop. Decibullz rates the combination of these tips with its custom molded earplugs at up to 31 NRR, which is a genuinely serious number for anyone who needs to dull engine drone, gym clatter or a loud open office.
Compatibility is broader than the brand name suggests. These tips are built to fit all Decibullz earplugs, including smaller sizes, and they also work across a wide range of earbuds and IEMs — AirPods Pro 2, JBL, Dunu S&S and more. So if you already like your earbuds but the stock tips keep sliding out, or you're constantly re-seating them, this is the cheapest way to fix the actual problem rather than replacing the hardware. It's also worth noting the brand's origin: Decibullz started when founder Kyle Kirkpatrick got fed up with headphones that wouldn't stay put or hurt his ears, and worked with audio engineers and material specialists to build a thermo-fit custom earphone. That history explains why the whole product line is obsessed with fit.
ANKASI Ear Cushions: Who It's For
ANKASI's ear cushions solve a very specific, very common problem: AirPods Max pads that have gone flat, lost their grip, or stopped sealing properly. These are replacement ear cup covers in Space Gray, and they're compatible only with AirPods Max 1 & 2 — no other headphone, no earbuds. If that's your device, the fit question is answered for you.
The design choices here are aimed at two things: staying attached and staying comfortable. The magnetic ring is upgraded for stronger suction and automatic adsorption, so the cushions snap on tightly and resist coming loose. Sealing rings are shaped to match the original cups, which is what preserves the passive noise isolation the headphone was designed around — a weak seal is usually why worn-out pads make music sound thin and the outside world sound loud. For the contact surface, ANKASI uses slow-rebound memory foam under breathable mesh fabric, so pressure builds up more gradually and heat has somewhere to go during long listening sessions. The cushion material is listed as cotton, with the mesh doing the breathability work.
There's a small practical bonus: fresh cushions visibly refresh the look of a headphone, which matters if your originals have discolored or started flaking. ANKASI also backs the pads with a 15-day warranty description and a stated 24-hour reply window for issues. That's short, and you should weigh it accordingly — it covers a defect out of the box, not long-term wear.
Who should skip it? Anyone without AirPods Max, obviously. Also anyone hoping to upgrade the sound signature — these are restoration parts, not tuning parts. They bring a tired headphone back to how it should feel and seal; they don't change what it is.
• Best for plugging into what you already own → Decibullz Custom Molded Memory. Five pairs, broad compatibility with earbuds and IEMs including AirPods Pro 2, JBL and Dunu S&S.
• Best for maximum noise blocking → Decibullz, which reaches up to 31 NRR when combined with Decibullz custom molded earplugs.
• Best for AirPods Max owners → ANKASI Ear Cushions. It's the only one of the two that fits an over-ear headphone at all.
• Best for magnetic attachment and easy install → ANKASI, thanks to the upgraded magnet ring and automatic adsorption.
• Best for long listening sessions → ANKASI's slow-rebound foam and breathable mesh are built for extended wear.
• Best for low maintenance → ANKASI. Cushions are meant to stay on; foam tips are meant to be replaced every 4–6 months.
• Best for travel, gym and loud environments → Decibullz, because the seal is the whole product.
• Best for refreshing a worn-out look → ANKASI in Space Gray.
In my opinion, these two products barely compete — they fix different broken things. If I owned AirPods Max with tired pads, I'd buy the ANKASI Ear Cushions without hesitating, because the stronger magnets, matched sealing rings and breathable memory foam address exactly what degrades on that headphone. But if I had to recommend one to the average reader, I'd pick Decibullz Custom Molded Memory (B08BNNZGWQ). It works with far more devices, it can push noise reduction toward 31 NRR with Decibullz earplugs, and it fixes the single most common complaint about earbuds: they don't stay in. Just budget for replacements every 4–6 months.
For fit and isolation, generally yes. Foam expands to fill your ear canal, which creates a more secure seal than silicone — and that's what blocks noise and keeps earbuds from slipping out. The trade-off is that foam wears out and needs periodic replacing.
Will ANKASI ear cushions fit AirPods Max 2?
Decibullz recommends every 4–6 months with regular use for the best fit and performance. Sweat, earwax and constant compression all break foam down, and a worn tip stops sealing properly. Five pairs in one pack gives you a reasonable runway.
They work differently. Decibullz tips paired with Decibullz custom molded earplugs are rated up to 31 NRR — a passive, in-ear seal. ANKASI cushions use sealing rings to preserve the AirPods Max's own noise isolation. Decibullz is the more aggressive noise blocker on paper, but only for in-ear use. For either, check the current price on Amazon before deciding.
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