How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want to restore a pair of Bowers & Wilkins PX8, PX7 S2 or PX7 S2e over-ear headphones with fresh protein-leather earpads, choose SOULWIT Ear Pads Cushions; if you need a wired in-ear monitor with a detachable cable for playing, singing or gaming, choose KASOTT QKZ ZXT.
• SOULWIT Ear Pads Cushions — biggest strength: a direct-fit replacement for Bowers & Wilkins PX8 / PX7 S2 / PX7 S2e, built from high-density noise-isolation foam and soft protein leather, in a blue finish.
• SOULWIT Ear Pads Cushions — biggest trade-off: it is not a headphone. It only makes sense if you already own one of those specific Bowers & Wilkins models, and SOULWIT explicitly says it does not fit the original PX7.
• KASOTT QKZ ZXT — biggest strength: a wired 3.5 mm in-ear monitor with a dynamic driver, a detachable cable (so a broken cable isn't the end of the earphones), sound-isolation eartips and a rounded-tip, in-ear fit in purple.
• KASOTT QKZ ZXT — biggest trade-off: it is wired only, with no wireless technology, so it's tethered to your source; and it's an in-ear, not an over-ear, so none of the PX8/PX7 S2 family's pad logic applies to it.
• Buy SOULWIT if you own a compatible Bowers & Wilkins headphone and want to refresh worn pads. Buy KASOTT QKZ ZXT if you want a wired IEM for music, monitoring or gaming.
SOULWIT's whole pitch is a narrow one, and that's a good thing. These are replacement earpads modeled for the Bowers & Wilkins PX8, PX7 S2 and PX7 S2e over-ear headphones — and SOULWIT is upfront that they do not fit the original PX7. That single line of compatibility is the most important thing on the page. If your headphone isn't one of those three, this product isn't for you.
For the right owner, though, the material story is sensible. The pads use high-density foam with a protein-leather cover, which is the classic combination for a closed-back over-ear: the foam is there to seal against your head and block some outside noise, and the leather surface is there to sit softly against your ears for long sessions. SOULWIT frames the benefit as better bass and better comfort, plus a fresh look — which is a fair way to describe what new pads do when the originals have flattened, flaked or lost their seal.
Installation is described as a few-minute job: the pads are modeled to match the headphone base so they clip or press into place accurately. That matters, because earpad swaps are exactly the kind of task that goes wrong when the mounting ring doesn't line up.
Who should buy it: owners of a PX8, PX7 S2 or PX7 S2e whose factory pads are worn out, or anyone who wants a blue accent on those headphones. Who should skip it: anyone with the original PX7, anyone with a different brand, and anyone shopping for earphones rather than pads. Note that SOULWIT lists no warranty description, so treat it as a consumable part rather than a covered device. Also worth checking the current price on Amazon, since a pad set only makes financial sense relative to the headphone it's reviving.
The QKZ ZXT is a different category altogether: a wired in-ear monitor aimed at musicians, singers and gamers, sold under the KASOTT brand with the model designation KS-ZXT-EJ / ZXT-EJ. It's an in-ear with a rounded-tip shape and a purple finish, and the earpieces are described as a combination of plastic, rubber or silicone and metal — a mix that suggests a lightweight shell with a metal accent rather than a heavy all-metal build.
The audio side is where the details get specific. There's a single dynamic driver type, a 17 ohm impedance rating, and a 10 mm composite magnetic dynamic coil that's tuned for what KASOTT calls excellent low and mid-range vocal performance. The description promises a balanced, coherent sound with good bass, clear mids and a bright top end — the usual "fun but detailed" tuning that suits pop, rock, electronic and gaming audio. Low impedance like 17 ohm is the practical part: it's easy for a phone, laptop or controller headphone jack to drive, no amp required.
Isolation is handled by the eartips rather than electronics. KASOTT describes sound-isolation technology with a set of eartips included, letting you listen at lower volumes while keeping detail. Take the motorcycle claim with a pinch of salt — for actual riding, ambient awareness matters more than isolation — but for commuting, noisy rooms and shared spaces, a sealing in-ear genuinely does cut background noise.
The other headline feature is the detachable cable. On a wired earphone, the cable is the part that fails first, so a detachable design is a real longevity play: if the cable dies, you replace the cable. Connection is a standard 3.5 mm jack, and there's a touch-based media control on the cable for play, pause and calls. There's no wireless technology here — this is wired only. KASOTT lists a one-year warranty description, which is more coverage than SOULWIT offers.
Side-by-Side: Which Should You Choose?
• Best for reviving an existing headphone → SOULWIT Ear Pads Cushions. If you own a PX8, PX7 S2 or PX7 S2e, new pads are the cheapest way to change how the headphone feels and sounds.
• Best for a complete listening setup from scratch → KASOTT QKZ ZXT. It's a finished product you plug in and use, not a part for something else.
• Best for on-stage or studio monitoring → KASOTT QKZ ZXT. The 10 mm dynamic driver, 17 ohm impedance and isolating tips are aimed squarely at that job.
• Best for gaming → KASOTT QKZ ZXT. The 360° stereo surround positioning claim and the inline media control fit gaming better than any earpad does.
• Best for long, comfortable over-ear sessions → SOULWIT Ear Pads Cushions. High-density foam and protein leather are built for hours on the head, whereas in-ears depend on how the tips sit in your particular ears.
• Best for cable durability → KASOTT QKZ ZXT. The detachable cable is a genuine repair-friendliness advantage.
• Best warranty coverage → KASOTT QKZ ZXT. KASOTT lists a one-year warranty description; SOULWIT lists none.
• Best color statement → a tie, by taste. SOULWIT comes in blue; KASOTT comes in purple. Pick the one that matches your setup.
• Wrong pick warning → buying SOULWIT pads for the original PX7 or any non-listed headphone is a wasted purchase; SOULWIT states the incompatibility outright.
In my opinion, these two products shouldn't really be compared head-to-head, because they solve different problems — so the honest answer is: buy the one that matches the job you actually have. If you already own a Bowers & Wilkins PX8, PX7 S2 or PX7 S2e and the pads are tired, I'd buy the SOULWIT Ear Pads Cushions; it's a targeted, low-effort fix that addresses comfort, seal and appearance in one go. If you're starting from nothing and want wired in-ear sound for music, monitoring or games, I'd buy the KASOTT QKZ ZXT instead — the detachable cable, included eartips and one-year warranty description make it the more self-contained purchase. Between the two, the QKZ ZXT is the one I'd recommend to most people, simply because it works out of the box for more listeners.
No. SOULWIT states the pads fit the PX8, PX7 S2 and PX7 S2e, and explicitly says they do not fit the PX7. Confirm your exact model before ordering, because the mounting design differs.
No. They're rated at 17 ohm impedance with a dynamic driver type, which makes them easy to drive from a phone, laptop or controller's 3.5 mm jack. The connection is a standard 3.5 mm jack, and the cable is detachable.
No. It's wired only, with no wireless technology listed. You get a detachable cable and touch-based media control, but you're tethered to your source device.
I don't quote prices here — check the current price on Amazon using the button on this page. Value depends on your situation: SOULWIT is a part that restores a headphone you already own, while KASOTT is a complete earphone with a one-year warranty description, so they're rarely competing for the same budget.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.
See also: HATOFES Earpads Cushions vs Xinyuekj Replacement Ear Pads, SOULWIT Replacement Ear Pads vs Waziaqoc 2, HOMSFOU 1pair vs Hmoke Replacement Ear Pads