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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-02 · 6 min read · Independent comparison
• JOYO Studio Monitor Headphones — biggest strength: 50 mm dynamic drivers with a flat 20 Hz–20 kHz response, a closed-back over-ear seal for passive isolation, and a 3 m cable that ends in 3.5 mm with a 6.35 mm adapter included.
• JOYO Studio Monitor Headphones — biggest trade-off: It is a dedicated monitoring tool. No microphone, no inline remote, and 300 g on the head, so it is not the pair you grab for a phone call.
• Sennheiser HD 400U — biggest strength: A wired, closed-back over-ear design that folds, weighs 217 g, and carries a one-button smart remote with a built-in mic on the cable.
• Sennheiser HD 400U — biggest trade-off: The connection is USB-C, not a 3.5 mm/6.35 mm jack, so it does not plug straight into a guitar amp, mixer or interface headphone out.
• Pick JOYO if your day is mixing, tracking, podcast recording or practising through an amp.
• Pick Sennheiser HD 400U if your day is calls, commuting, travel and casual listening on a USB-C device.
The JOYO JMH-02 is built around one idea: give you an honest picture of your audio. The 50 mm neodymium dynamic drivers cover 20 Hz to 20 kHz with a deliberately flat, un-hyped balance, so bass is tight rather than boosted and the mids stay smooth. If you have ever mixed a track on bass-heavy consumer headphones and then wondered why it sounded thin everywhere else, that flat response is the whole point. The closed circumaural design creates a seal around your ears, which is passive isolation — not electronic ANC — and that matters for two reasons: outside room noise drops, and your own monitoring stays out of the microphone when you track vocals or instruments.
Buy it if you record, mix, podcast or practise through an amp and want a flat, wired reference you can trust. Skip it if you need to answer calls, control playback from the cable, or carry headphones folded in a bag. There is no microphone and no remote here, and the connection is a standard 3.5 mm/6.35 mm jack rather than USB-C.
Sennheiser HD 400U: Who It's For
The HD 400U is the practical everyday wired headphone. It is closed-back and over-ear with ergonomic cushions that cut down background noise and keep detail intact, and it weighs 217 g — noticeably lighter than the JOYO. The sturdy folding design is the headline for anyone who moves around, because it collapses down for storage and travel rather than sitting permanently on a desk. Sennheiser includes a protective case in the box alongside the cable and a safety guide.
The cable carries a one-button smart remote and a built-in microphone, so you can pause music, take a call and get back to what you were doing without touching your phone or laptop. That is the feature that makes this a daily-driver headphone rather than a monitoring tool. Sensitivity is rated at 120 dB with a 20 Hz–20,000 Hz dynamic driver, so it is voiced for easy, detailed listening on the devices people actually carry.
The catch is the connector. This is a USB-C wired headphone, which is great on modern laptops, tablets and USB-C phones, but it will not plug into a guitar amp, a mixer or an audio interface's 6.35 mm headphone output without the right adapter or source — and there is no 6.35 mm adapter in the box. It also comes with a one-year manufacturer warranty.
Buy it if you want one lightweight wired pair for calls, music and travel that folds away and lives in a case. Skip it if your priority is a flat reference for mixing or a 6.35 mm connection to studio and stage gear.
Side-by-Side: Which Should You Choose?
• Best for mixing and critical listening → JOYO Studio Monitor Headphones. The flat 20 Hz–20 kHz tuning and 50 mm drivers are aimed squarely at revealing a mix rather than flattering it.
• Best for amp, mixer and interface use → JOYO Studio Monitor Headphones. The 3.5 mm plug plus included 6.35 mm adapter connects to guitar amps, interfaces, mixers and drum modules.
• Best for USB-C devices → Sennheiser HD 400U. Its wired connection is USB-C, which suits modern laptops, tablets and USB-C phones.
• Best for travel and storage → Sennheiser HD 400U. It folds, weighs 217 g, and ships with a protective case.
• Best for tracking without bleed → JOYO Studio Monitor Headphones. The closed circumaural seal provides passive isolation that keeps your monitoring out of the mic.
• Best for long, stationary sessions → JOYO Studio Monitor Headphones, with the caveat that at 300 g you should take breaks; the HD 400U's 217 g is the lighter wear.
• Best for cable reach → JOYO Studio Monitor Headphones. A 3 m straight cable versus the shorter cable-and-remote setup on the Sennheiser.
In my opinion, if your headphones are a tool for recording, mixing or practising through an amp, buy the JOYO Studio Monitor Headphones. The flat 50 mm drivers, the closed-back isolation, the 3 m cable and the included 6.35 mm adapter are exactly the combination a home studio or gigging player needs, and nothing in the HD 400U's feature set replaces any of it. I would only choose the Sennheiser HD 400U if my headphones double as a daily pair for calls and travel — the foldable 217 g frame, the protective case, and the mic-and-remote cable are genuinely useful there, and USB-C suits modern devices. Two different jobs, two different answers, and neither is a compromise on its own terms.
FAQ
what are the best wired studio headphones
what are wired headphones
Wired headphones connect to your device with a physical cable instead of Bluetooth, which avoids charging and latency. The JOYO uses a 3.5 mm/6.35 mm jack, while the Sennheiser HD 400U uses USB-C — both are wired, but they plug into different sources.
what headphones do professional studios use
Studios generally favour closed-back, flat-response monitor headphones for tracking and reference listening. The JOYO Studio Monitor Headphones fit that description with 50 mm dynamic drivers, a 20 Hz–20 kHz flat response and passive noise isolation from the over-ear seal.
are all studio headphones wired
No, not all — but wired remains the norm for monitoring because it avoids charging and wireless latency. Both headphones compared here are wired, though they differ in connection: JOYO uses a 3.5 mm/6.35 mm jack, and the Sennheiser HD 400U uses USB-C with a smart remote.
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