How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 7 min read · Independent comparison
• EZ EAR KZ EDX PRO — biggest strength: A full wired IEM package built around a 10 mm dynamic driver with a detachable 0.75 mm 2-pin cable, so you get real sound hardware, not an accessory.
• EZ EAR KZ EDX PRO — biggest trade-off: It's wired, with no noise cancellation and no wireless mode, so it's tethered to your source and isolates only through fit.
• SOULWIT Ear Pads Cushions — biggest strength: Purpose-built replacement pads in high-density foam and protein leather that restore comfort and bass on Bowers & Wilkins PX8 / PX7 S2 / PX7 S2e headphones.
• SOULWIT Ear Pads Cushions — biggest trade-off: They only fit three specific headphone models — buy these without owning one of those and they're useless to you.
• Who the KZ EDX PRO is for: Listeners who want an affordable wired in-ear monitor for music, stage use, calls and everyday listening on a phone.
• Who the SOULWIT pads are for: Existing owners of Bowers & Wilkins PX8, PX7 S2 or PX7 S2e whose original pads have worn flat, cracked or lost their seal.
The KZ EDX PRO is a wired in-ear monitor, and the spec sheet tells a coherent story about what that means. A single 10 mm dynamic driver handles the full 20 Hz – 20,000 Hz range, with 24 ohm impedance and 112 dB sensitivity. That combination matters in practice: low impedance plus high sensitivity is exactly what makes an IEM easy to drive from a phone's headphone jack without a separate amplifier. If you've ever plugged a fussy pair of earbuds into a phone and gotten thin, quiet sound, this is the spec profile that avoids it.
The design is clearly aimed at people who want their gear to look like gear. The housing uses resin inlaid with metal, and the sheet calls out the texture and the streamer-like finish as part of the appeal, with stage, outing and show use named directly. Whether or not that aesthetic lands for you is personal, but it's a deliberate choice rather than a plain black plastic shell.
Buy it if you want a wired in-ear monitor with a replaceable cable, a mic-free configuration, a 3.5 mm jack and a one-year warranty, and you'll be plugging into a phone, laptop or portable player.
Skip it if you need wireless freedom, active noise cancellation, or you dislike the feel of in-ear tips. The sheet lists no noise control, the connection is wired, and the package includes three pairs of ear tips — so fit is something you tune yourself, not something guaranteed on day one.
SOULWIT Ear Pads Cushions: Who It's For
The SOULWIT pads are a maintenance part, and they should be judged that way. Their entire reason to exist is compatibility: they're modeled for the Bowers & Wilkins PX8, PX7 S2 and PX7 S2e over-ear headphones. The title is blunt about the limit — they do not fit the PX7. That single line is the most important thing on the page, because it's the difference between a five-minute upgrade and a return.
The materials are the second half of the story. High-density foam wrapped in protein leather is a sensible pairing for over-ear pads: the foam does the sealing and the noise isolation, and the protein leather gives you the smooth, wipeable surface most people associate with premium headphone pads. SOULWIT's own framing ties this directly to bass — denser foam and a proper seal are what let an over-ear headphone hold low-frequency energy instead of leaking it. The same construction is what makes the pads comfortable over long sessions, since the foam compresses rather than presses.
There's also an argument here about sound that's worth stating plainly. Worn pads are one of the most common reasons a good pair of headphones starts sounding thin or distant. When foam flattens, the driver sits closer to your ear, the seal weakens, and bass and isolation suffer. Replacing the pads restores the geometry the headphone was designed around. That's not a marketing claim — it's just how closed-back over-ears work, and it's why SOULWIT can reasonably say new pads make the headset look and sound new again.
Buy it if you own a PX8, PX7 S2 or PX7 S2e and your current pads are flat, flaking, cracked or no longer sealing well, and you want to keep using the headphones rather than replacing them.
Skip it if you own the original PX7, any other brand, or any on-ear or in-ear model. There's no universal fit here, and the sheet lists no warranty, so the purchase is a straightforward one-shot part.
Side-by-Side: Which Should You Choose?
• Best for a complete listening setup → EZ EAR KZ EDX PRO. It's a finished product: earphones, cable, three pairs of tips and a manual.
• Best for repairing what you already own → SOULWIT Ear Pads Cushions. This is a replacement part, not a new device.
• Best for easy phone driving → EZ EAR KZ EDX PRO. 24 ohm impedance and 112 dB sensitivity are the numbers that make that possible.
• Best for over-ear comfort and bass retention → SOULWIT Ear Pads Cushions. High-density foam plus protein leather is the combination that rebuilds the seal.
• Best for upgradeability → EZ EAR KZ EDX PRO. The 0.75 mm 2-pin detachable cable means one failure doesn't end the product's life.
• Best for travel and wireless use → neither, strictly speaking. The KZ EDX PRO is wired; the SOULWIT pads are for headphones you already own, not a portable solution on their own.
• Best for someone who owns nothing yet → EZ EAR KZ EDX PRO. The SOULWIT pads are only useful if a specific Bowers & Wilkins model is already in your bag.
• Best for someone whose Bowers & Wilkins pads are shot → SOULWIT Ear Pads Cushions. Nothing else on this page solves that problem.
My Verdict
Yes, based on the specs. At 24 ohm impedance and 112 dB sensitivity, it's designed to be driven directly by a phone. There's also a one-button media control on the cable for music and calls.
No. The product is stated to fit the PX8, PX7 S2 and PX7 S2e only, and it explicitly does not fit the PX7. Confirm your exact model before ordering.
No. The sheet lists noise control as none. Any isolation you get comes from the ear tip seal, which is why the package includes three sizes of tips.
They can. Worn, flattened foam weakens the seal, which typically costs you bass and isolation. Fresh high-density foam and protein leather restore that seal, which is the main reason pad replacement is worth doing.
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