We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
If you want a compact, closed-back wired headphone that doubles as a practice partner for a digital instrument, choose Yamaha HPH-100WH; if you need an open-back studio headphone for mixing, mastering or tracking, choose OneOdio Monitor 80.
• Yamaha HPH-100WH — biggest strength: a closed-back dynamic design with a 90-degree swivel mechanism, a 2-meter cable and gold-plated connectors, built to sit comfortably for long sessions.
• Yamaha HPH-100WH — biggest trade-off: it's a wired, instrument-oriented headphone with no noise cancelling and a fixed cable, so it isn't a travel or commuting pick.
• OneOdio Monitor 80 — biggest strength: an open-back studio headphone that's Hi-Res audio certified, positioned for mastering, mixing and tracking work.
• OneOdio Monitor 80 — biggest trade-off: open-back designs leak sound both ways, and the data sheet gives far fewer published specs than the Yamaha, so there's less to compare on paper.
• Pick the Yamaha HPH-100WH if you play a digital instrument, want a closed-back fit and value a swivel driver and a long cable.
• Pick the OneOdio Monitor 80 if you're doing studio monitoring work and want an open-back, Hi-Res certified tool with a USB-C to 3.5 mm adapter in the box.
The HPH-100WH is a compact, closed-back dynamic headphone in white, with a plastic enclosure and a rounded over-ear shape. The headline feature is the swivel mechanism: the driver unit turns 90 degrees so it can be angled to fit your ear, and the headband adjusts smoothly. That combination is the reason Yamaha frames this as comfortable listening over extended periods — it's about fit and positioning rather than brute isolation.
The spec sheet tells a coherent story for players. Impedance is 46 ohm, sensitivity is 103 dB, and the frequency response runs 20 Hz to 20 kHz. Total weight with the cable is 133 g, which is light enough that the headband and earcups aren't fighting gravity all session. The cable is 2 meters and terminates in gold-plated connectors, with both 3.5 mm (1/8") and 6.3 mm (1/4") stereo plugs covered. There's a volume control on the cable. The 2-meter length plus the larger plug is exactly what you want when you're standing at a digital piano or keyboard rather than sitting at a desk.
Who should buy it: instrumentalists who practice at home, anyone who wants a closed-back headphone that blocks a bit of the room around them, and buyers who prefer a white finish with the Yamaha logo on the housing and headband. It carries a 1-year manufacturer warranty.
Who should skip it: if you need wireless, active noise cancelling or a folding travel design, this isn't that product — the data sheet lists no noise control at all, and connectivity is wired only. If you want the openness that makes studio monitoring translate well, a closed-back design is the wrong tool.
The OneOdio Monitor 80 is an open-back studio headphone, and the company's own positioning is refreshingly specific: it's described as a reliable companion for mastering, mixing or tracking, and it's Hi-Res audio certified. That's a different job from the Yamaha's. Open-back headphones let air move behind the driver, which is the traditional approach for studio monitoring because it tends to give a more spacious, less boxed-in presentation than a sealed cup.
The bundle matters here too. This listing pairs the Monitor 80 with a USB-C to 3.5 mm adapter, which is a practical inclusion if your laptop, tablet or phone has dropped the headphone jack. You get the headphone and the adapter you need to actually plug it in — no separate dongle purchase.
Who should buy it: home studio users, producers and engineers doing mixing and tracking sessions, and anyone who wants an open-back, Hi-Res certified headphone with a modern-connection adapter included. If your work involves critical listening and you don't need isolation, this is the more purpose-built option.
Who should skip it: if you record with a microphone in the same room, open-back leakage is a real problem — sound escapes out and room noise comes in. If you need to use headphones on a noisy commute or in a shared office, an open-back design is a poor fit. And if you're shopping for an instrument practice headphone, the Yamaha's closed-back, swivel-driver approach makes more sense.
One honest caveat: the OneOdio data sheet is thin. Beyond the open-back design, the Hi-Res certification and the bundled adapter, there are no published impedance, sensitivity, frequency response or weight figures to compare against the Yamaha. That doesn't make it a worse headphone — it just means I can only judge it on design intent and certification, not on numbers.
• Best for instrument practice → Yamaha HPH-100WH. The 2-meter cable, 6.3 mm stereo plug and 90-degree swivel drivers are built for sitting or standing at a digital instrument.
• Best for studio mixing and mastering → OneOdio Monitor 80. Open-back, Hi-Res certified, explicitly aimed at mastering, mixing and tracking.
• Best for isolation from your surroundings → Yamaha HPH-100WH. Closed-back means it seals around the ear; the OneOdio's open-back design does the opposite.
• Best for modern devices without a headphone jack → OneOdio Monitor 80. The included USB-C to 3.5 mm adapter covers that case; the Yamaha is a straight wired 3.5 mm/6.3 mm connection.
• Best documented specs for comparison → Yamaha HPH-100WH. 46 ohm, 103 dB sensitivity, 20 Hz–20 kHz, 133 g with cable. The OneOdio sheet publishes none of these.
• Best for long wearing sessions → Yamaha HPH-100WH. Light weight plus the swivel-and-adjust headband is designed around extended listening comfort.
• Best for critical listening in a quiet room → OneOdio Monitor 80. Open-back designs are the conventional choice when you want a spacious presentation and don't need to block anything out.
• Best for recording vocals or instruments on mic → Yamaha HPH-100WH. Closed-back cups won't bleed into a live microphone the way open-back ones can.
In my opinion, the right pick comes down to one question: are you monitoring or are you playing? If you're sitting at a digital piano, a keyboard or an amp and you want a light, closed-back headphone with a long cable and a proper 6.3 mm plug, I'd buy the Yamaha HPH-100WH — its published specs (46 ohm, 103 dB, 20 Hz–20 kHz, 133 g) and swivel mechanism make it the more predictable purchase. If your work is mixing, mastering or tracking in a quiet room and you want an open-back, Hi-Res certified headphone with a USB-C adapter in the box, I'd buy the OneOdio Monitor 80. Two different tools, two different jobs — don't cross them up. Check the current price on Amazon before you commit, since that's the one variable that can flip a close call.
Closed-back. The data sheet lists it as a dynamic, closed-back design, which means it seals around the ear and blocks more of your surroundings than an open-back headphone would.
It's an open-back studio headphone aimed at mastering, mixing and tracking, so it isn't the natural choice for commuting or noisy environments — open-back designs let sound in and out. It's better suited to a quiet room where critical listening matters.
The Yamaha is described as delivering balanced bass and treble with rich tone color, and its published response is 20 Hz–20 kHz. The OneOdio is open-back and Hi-Res audio certified, but its data sheet doesn't publish a frequency response, so I can't compare curves on paper. Design intent — sealed for playing, open for monitoring — is the clearer distinction.
Value depends on the job. If you need an instrument practice headphone, the Yamaha's long cable, 6.3 mm plug and swivel drivers do more for you; if you need a studio monitoring headphone with a USB-C adapter included, the OneOdio bundle covers more ground. Compare the current prices on Amazon for both and match the price to the use case, not the other way around.
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