We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-23 · 7 min read · Independent comparison
If you want a simple, targeted fix that restores a pair of ATH-M50-series headphones to their original sealed, cushioned feel, choose Audio-Technica HP-EP-WH Replacement Ear; if you need a complete wired in-ear earphone built around a six-driver hybrid setup for serious listening, choose Linsoul KZ ZSX 5BA+1DD.
• Audio-Technica HP-EP-WH Replacement Ear — biggest strength: it is a direct, model-specific replacement part (memory foam and cotton) for the ATH-M50WH and ATH-M50XWH, so it keeps your existing M-series headphones going. Biggest trade-off: it is not a headphone at all — it is a pair of ear pads, in white only, and it does nothing for anything other than those two models.
• Linsoul KZ ZSX 5BA+1DD — biggest strength: a genuine hybrid driver earphone — five balanced-armature drivers plus one 10 mm dynamic driver — with a zinc alloy faceplate, resin cavity, detachable 2-pin cable and a 7Hz–40kHz response. Biggest trade-off: it is wired-only (3.5 mm jack), in-ear, and it does not replace or repair anything — it is a new purchase.
• Who the Audio-Technica pads are for: M50WH / M50XWH owners whose pads are worn, flattened or torn.
• Who the KZ ZSX is for: audiophiles who want a detailed, multi-driver wired IEM with an upgradeable cable.
• Bottom line: these are not substitutes for each other. One is maintenance, the other is an upgrade.
This is a maintenance part, and I want to be blunt about that, because the naming can trip people up. The HP-EP-WH is a pair of replacement ear pads in white, built from memory foam and cotton, and it is listed as compatible with the ATH-M50WH and ATH-M50XWH. That is the whole product. If you own one of those two headphones and the pads have gone flat, cracked or lost their seal, this is the part that brings the fit and the cushioning back.
What it does best is stay out of the way. Because it is a model-specific part from the same manufacturer, the fit is the fit — no stretching, no trimming, no guessing whether an aftermarket pad will change the sound or the clamp. The memory foam and cotton construction matches what these headphones were designed around, and the white finish matches the white versions of the M-series cans specifically. There is a one-year warranty listed, which is normal for a consumable part like this.
Who should buy it: anyone with an ATH-M50WH or ATH-M50XWH who likes their headphones and simply wants them comfortable and sealed again. Replacing pads is far less wasteful than replacing a whole headphone, and it is the kind of small job most people can do themselves.
Who should skip it: anyone who does not own those specific models. If you have a different Audio-Technica headphone, or a headphone from another brand, this part is not for you — the compatibility list is narrow on purpose. And if what you actually want is a new set of earphones to listen with, this is not that. It is a pair of pads, nothing more. Check the current price on Amazon before ordering, and confirm your exact model number first — that is the one step that matters here.
The KZ ZSX is the opposite kind of product: a complete wired in-ear earphone aimed squarely at people who care about driver configuration. The setup is a hybrid — two DWEK balanced-armature drivers covering medium and high frequency, a 30095 driver for high frequency, and a single 10 mm double-magnetic dynamic driver handling low frequency. That is six drivers per side, tuned as a physical-electronic compound system, with the stated goal of a deep soundstage and rich detail across the range.
The numbers back up the "hi-fi" framing: 24 ohm impedance, 111 dB sensitivity and a 7Hz–40kHz frequency response. Low impedance plus high sensitivity generally means these are easy to drive straight from a phone or a dongle, without needing a dedicated amp to get usable volume — which matters a lot if you mostly listen on the move.
The build is more considered than the price-adjacent segment usually suggests. The faceplate is zinc alloy, the cavity is imported resin, and the two materials together give it a sturdier, better-looking shell than an all-plastic design. The cable is a detachable gold-plated 0.75 mm 2-pin, with a recessed limit-slot design that protects the pins from bending and extends the life of the connector — a real weak point on cheaper IEMs. The ergonomic cavity is molded to fit the ear like a custom tip, and the design is explicitly intended to isolate outside noise, so it holds up during exercise and long sessions alike. Connectivity is wired only, 3.5 mm, with an inline media control and mic on this version.
Who should buy it: audiophiles who want a multi-driver hybrid they can actually hear the benefit of, who like the idea of swapping cables later, and who want isolation without active noise cancellation. The detachable cable in particular makes this a longer-term purchase than a fixed-cable IEM.
Who should skip it: anyone who wants wireless. There is no Bluetooth here — it is a wired 3.5 mm earphone, full stop. Also skip it if you are not comfortable with in-ear fit; the rounded-tip, deep-seal design is central to how it isolates, and if you dislike that sensation, a full-size headphone will suit you better. As always, check the current price on Amazon rather than assuming.
• Best for repairing existing headphones → Audio-Technica HP-EP-WH Replacement Ear. It exists to restore M50WH/M50XWH comfort and seal.
• Best for a complete new listening setup → Linsoul KZ ZSX 5BA+1DD. One purchase, ready to plug in.
• Best for driver-count and technical spec → Linsoul KZ ZSX. Six drivers, 24 ohm, 111 dB, 7Hz–40kHz.
• Best for cable longevity and upgradability → Linsoul KZ ZSX. Detachable 0.75 mm 2-pin with recessed pin protection.
• Best for noise isolation while moving → Linsoul KZ ZSX. Deep-seal in-ear fit designed to block outside sound.
• Best for a narrow, guaranteed fit → Audio-Technica HP-EP-WH. Compatible with ATH-M50WH and ATH-M50XWH specifically.
• Best for wireless listening → neither. Both are wired products; the KZ ZSX uses a 3.5 mm jack.
• Best if you already love your M-series headphones → Audio-Technica HP-EP-WH. Cheaper than replacing what you own.
In my opinion, if you are shopping for headphones as an audiophile — meaning you want something to listen with today — the Linsoul KZ ZSX 5BA+1DD is the one I would buy. The hybrid six-driver design, the zinc alloy and resin build, and especially the detachable, pin-protected cable give it real substance and a longer useful life. The Audio-Technica pads are excellent at exactly one job, but that job is maintenance, not listening. Only pick them if you already own an ATH-M50WH or ATH-M50XWH and just need to refresh the fit.
what is the best headphones for audiophiles
There is no single answer, but if you want a wired in-ear with a serious driver count and an upgradeable cable, the Linsoul KZ ZSX 5BA+1DD is a strong candidate — five balanced-armature drivers plus a 10 mm dynamic driver, 24 ohm, 111 dB, 7Hz–40kHz. If you already own ATH-M50WH or ATH-M50XWH headphones, refreshing them with the Audio-Technica HP-EP-WH pads is the smarter move than buying new.
what are the best headphones for audiophiles
Look at driver configuration, impedance, sensitivity and build. The KZ ZSX ticks the technical boxes with its hybrid setup and detachable 2-pin cable. The Audio-Technica HP-EP-WH is not a headphone — it is a replacement pad pair for the M-series, so it only enters the conversation if you are maintaining existing headphones rather than buying new ones.
what are the best wireless headphones for audiophiles
Neither product here is wireless. The Linsoul KZ ZSX is a wired 3.5 mm in-ear earphone, and the Audio-Technica HP-EP-WH is a pair of ear pads with no electronics at all. If wireless is a hard requirement, you need to look elsewhere entirely — but note that the KZ ZSX's detachable cable means it is the more flexible of the two for future changes.
No — the listed compatibility is specific: ATH-M50WH and ATH-M50XWH. They are white, sold as a pair, made of memory foam and cotton, and carry a one-year warranty. If your model is not on that list, do not assume they will fit; check your exact model number before ordering and check the current price on Amazon.
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