We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-30 · 7 min read · Independent comparison
If you want a wired, metal-shell in-ear built around a single 10mm dynamic driver and a detachable upgrade cable, choose Linsoul 7Hz; if you need a gaming-first IEM with USB-C digital audio, app EQ tuning, and an in-line mic, choose EPZ G10.
• Linsoul 7Hz — biggest strength: a 10mm dynamic driver with a metal composite diaphragm and N52 magnet, paired with a metal housing and a silver-plated 16-core detachable cable. It's a pure music-first build.
• Linsoul 7Hz — biggest trade-off: it's a 3.5mm analog set with no mic in this configuration and no EQ app, so it's not the pick for digital USB-C devices or in-game chat.
• EPZ G10 — biggest strength: 10mm LCP+PU dual-material composite driver in a 3D-printed skin-friendly resin shell, with Type-C digital audio, EQ adjustment, hybrid noise cancellation, and an in-line mic.
• EPZ G10 — biggest trade-off: EQ tuning only works on the Type-C version — the 3.5mm version doesn't support it — and the source device must support USB audio for the digital connection.
• Pick Linsoul 7Hz if you mainly listen to music on a 3.5mm jack and want a metal-built IEM with a cable you can swap.
• Pick EPZ G10 if you game on a USB-C phone, tablet, or PC and want mic chat, tuning control, and a lightweight resin fit for long sessions.
The Linsoul 7Hz Salnotes Zero is built around one idea: a 10mm dynamic driver with a metal composite diaphragm. The thinking behind that diaphragm is simple — a metallic composite material resonates and vibrates more readily with the sound waves pushing against it, which is the whole mechanical basis of how a dynamic driver turns an electrical signal into air movement. Add an N52 magnet and the design brief reads as "fine tuning" of that single driver rather than piling on extra drivers. The frequency range is listed at 10 Hz to 20,000 Hz, which covers the audible band from deep bass extension to the top of what most ears can hear.
The physical build leans premium for this category. The housing is metal, the earpiece is a rounded-tip in-ear shape, and it ships in black. Metal shells matter for two practical reasons: they feel denser and more solid in the hand, and they tend to resist the flex and rattle that cheap plastic shells develop over time. The bundled Tripowin Zonie cable is a silver-plated 16-core design on a 0.78mm-class 2-pin detachable connection, which means if the cable ever fails — the most common failure point on any wired IEM — you swap the cable, not the whole earphone.
Who should buy it: someone who listens to music from a phone, laptop, or dongle with a 3.5mm jack and wants a wired set with a metal body and a replaceable cable. The 3.5mm termination is analog, so it works with anything that has a standard headphone jack, including controllers.
EPZ G10: Who It's For
The EPZ G10 is a gaming-first in-ear monitor, and its spec sheet reads like it was written by someone who games for hours at a time. The shell is 3D-printed resin from a proprietary DLP process, and the material is described as skin-friendly and featherlight. That's not marketing filler — resin shells are typically lighter than metal ones, and lighter means less pressure on the ear during marathon sessions. That's the exact phrase the manufacturer uses, and the design choices back it up.
The driver is a 10mm LCP+PU dynamic driver, a dual-material composite diaphragm that combines two materials to get the acoustic strengths of each. The claimed result is clear, accurate sound positioning, powerful bass, and a broad, natural soundstage — and "sound positioning" is the giveaway word. For gaming, directional cues matter more than flat frequency response, and the G10 is tuned around that. Impedance is 32 ohm and sensitivity is 100 dB, which tells you it doesn't need a powerful amp to get loud.
Connectivity is where it diverges most from the 7Hz. The G10 comes in a Type-C version with a built-in DAC for digital audio output, and that version supports EQ adjustment through app or software. The 3.5mm version is analog and does not support tuning. Both share the same earpieces and tuning, and both use a detachable 0.78mm 2-pin cable. There's an in-line mic and in-line control for calls and in-game chat, hybrid noise cancellation, and a listed one-year warranty. A waterproof build rounds out the durability story.
Who should buy it: gamers on USB-C phones, tablets, or PCs who want mic chat, tuning control, and a light resin fit. Also anyone who wants a detachable cable they can replace or swap.
Who should skip it: anyone planning to use the 3.5mm version and expecting EQ — that version can't do it. Also skip it if your source device doesn't support USB audio, since the Type-C connection needs it.
Side-by-Side: Which Should You Choose?
• Best for pure music listening on a 3.5mm jack → Linsoul 7Hz. A dedicated 10mm dynamic driver with a metal composite diaphragm and no extra features pulling the design in other directions.
• Best for USB-C devices → EPZ G10. Built-in DAC, digital output, and app EQ on the Type-C version.
• Best for build feel and long-term durability → Linsoul 7Hz. Metal housing plus a silver-plated 16-core detachable cable is a sturdier-feeling package than a lightweight resin shell.
• Best for long-session comfort → EPZ G10. Skin-friendly 3D-printed resin is explicitly designed to stay comfortable over marathon sessions.
• Best for cable replacement and modding → a tie. Both use detachable 2-pin cables (0.78mm on the G10), so both can be re-cabled.
• Best for tuning flexibility → EPZ G10. EQ adjustment via app or software, but only on the Type-C version.
• Best for simplicity and plug-and-play → Linsoul 7Hz. No app, no driver download, no version caveats — plug into a 3.5mm jack and go.
In my opinion, the deciding question isn't which driver is better — both are 10mm dynamic drivers, and both are built around getting the most out of a single driver. It's what you're plugging into. If your daily driver is a USB-C phone, tablet, or PC and you want mic chat plus EQ tuning, I'd buy the EPZ G10 in the Type-C version. If you're a music listener on a 3.5mm jack who wants a metal-bodied IEM with a replaceable silver-plated cable, I'd buy the Linsoul 7Hz Salnotes Zero. Neither is a compromise pick — they're just aimed at different jobs. Check the current price on Amazon before you commit, since that's the one variable that can flip the math.
A 10mm driver earbud uses a dynamic driver with a 10-millimeter diaphragm — the moving part that pushes air to create sound. Both the Linsoul 7Hz and the EPZ G10 use a 10mm dynamic driver, making them directly comparable in this respect. In general, a larger diaphragm moves more air, which typically helps with bass presence.
Yes — 10mm is a common and well-rounded size for in-ear monitors. Both products here use a 10mm dynamic driver, and both pair it with a composite diaphragm (metal composite on the 7Hz, LCP+PU on the G10) to improve how cleanly it resonates. The 7Hz lists a 10 Hz to 20,000 Hz frequency range, covering the full audible band. Whether it's "good" for you depends more on tuning and fit than the number alone.
A 6mm driver is smaller, so it moves less air than a 10mm unit. That usually means less bass weight, though smaller drivers can still sound clean and detailed. Neither product in this comparison uses a 6mm driver — both are 10mm — so if bass presence matters to you, a 10mm design like these two is the more relevant starting point.
It depends on the model and version. The EPZ G10 has an in-line microphone on the cable for calls and in-game chat. The Linsoul 7Hz listed here is the "Without Mic" configuration, so it does not include one. If voice chat matters, that alone may settle the choice for you.
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