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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want neutral, semi-open studio sound with a wide soundstage for mixing, mastering and long listening sessions, choose Superlux HD668B; if you need an in-ear gaming headset with spatial audio, a mic and in-line controls for PC, PS5, Xbox or Switch, choose Rosmas Gaming Earbuds.
These two are wired, both use 3.5 mm, and both sit in the "affordable gear that punches up" category — but they are built for completely different jobs. One is an over-ear studio monitor. The other is a lightweight in-ear gaming set with a boom-free mic and controls on the cable. Here's how I'd split them.
• Superlux HD668B — biggest strength: semi-open 50 mm dynamic drivers with a 10 Hz–30 kHz range and 56 Ω impedance, tuned for neutral, balanced sound and precise imaging — the kind of tuning you want when you're judging a mix rather than enjoying a cutscene.
• Superlux HD668B — biggest trade-off: it's a wired, semi-open over-ear at 260 g with no microphone and no in-line controls. It also leaks sound both ways, so it's a poor fit for noisy rooms or calls.
• Rosmas Gaming Earbuds — biggest strength: 360° spatial audio from custom-tuned 10 mm drivers, a built-in HD mic, in-line volume/call controls, and a 45° angled in-ear fit with S/M/L silicone tips — plug-and-play on PS5, Xbox, PC, Switch, laptops and phones with a 3.5 mm jack.
• Rosmas Gaming Earbuds — biggest trade-off: an in-ear design can't match the soundstage and isolation-free openness of a semi-open over-ear, and there's no impedance or frequency-response spec published to compare against the Superlux on paper.
• Pick Superlux HD668B if you're producing, mixing or mixing-adjacent listening and you sit at a desk.
• Pick Rosmas Gaming Earbuds if you're gaming on a console or laptop and want voice chat plus controls without a bulky headset.
The HD668B MKII is the modern version of a headphone that's spent 15 years being described as the "King of Balanced Sound." That's the marketing line, but the spec sheet backs the intent: 50 mm neodymium dynamic drivers, a 10 Hz–30 kHz frequency range, 98 dB SPL sensitivity and 56 Ω impedance. That combination — moderate impedance, high-ish sensitivity, wide claimed range — is a classic studio-monitor recipe. It's meant to be driven by a phone, laptop, interface or console controller without demanding a dedicated amp, while still giving you a flat-ish, uncolored presentation.
What it does best is imaging and balance. The semi-open enclosure is the key detail here: semi-open designs trade a bit of isolation for a wider, more natural sense of space, which is why they show up in mixing and mastering work. The MKII also gets an upgraded diaphragm aimed at better transient response — snappier attack, clearer mids, smoother highs and bass that stays controlled instead of blooming. For critical listening, that matters more than thump.
Comfort and fit are clearly the other focus. Superlux dropped the old "wing" headband system in favor of a press-and-lock adjustable headband, which is a more secure, more predictable fit for long sessions. The frame is 260 g, and the earpads are soft protein leather. The cable is detachable — a 1.5 M 3.5 mm gold-plated twist-lock cable with a 6.3 mm adapter included, so it works with both portable gear and a proper audio interface.
Buy it if you're mixing, mastering, editing audio, or you just want a neutral wired over-ear for desk listening. Skip it if you need a mic, you game on a console and want chat controls on the cable, you need isolation for a noisy room, or you want something pocketable. It's also not the pick for bass-heavy, closed-back listening — this is a deliberately even tuning.
The Rosmas set is a different animal entirely, and it's honest about it. The headline is 360° spatial audio from custom-tuned 10 mm dynamic drivers, positioned specifically at competitive gaming: footsteps, reloads, directional cues. That's the use case — reacting faster in FPS games — and it's the right frame for an in-ear. In-ears put the driver right at your ear canal, which is exactly why they're good at picking out small positional details at low volume.
The fit is engineered for marathon sessions: a 45° angled in-ear shape, soft silicone tips in three sizes (S/M/L), and a lightweight build that's meant to stay put without pressure. If you've ever had a headset clamp down on your ears for four hours, the appeal is obvious. The metal-and-plastic housing and reinforced braided cable are there to survive being yanked off a desk, and the L-shaped 3.5 mm plug protects the connector — a small detail that genuinely matters on a laptop or controller jack that gets stressed.
Connectivity is the other reason to buy these. 3.5 mm jack, no drivers, plug and play across PS5, Xbox, PC, Switch, laptops and mobile devices. There's a built-in HD mic for voice chat, and in-line controls for volume and calls, so you don't have to alt-tab or pause mid-match. Rosmas also covers them with an 18-month manufacturer warranty and states it offers returns and exchanges plus support if something goes wrong.
Buy it if you game on console or PC, you want chat and volume control on the cable, and you want something light you can wear for hours. Skip it if you're doing any music production, you want a wide, open soundstage for critical listening, or you prefer over-ear comfort. It's also a single-color option — blue — so there's no aesthetic choice here.
• Best for mixing and mastering → Superlux HD668B. Semi-open 50 mm drivers, neutral tuning, wide imaging, detachable cable with a 6.3 mm adapter.
• Best for competitive gaming and voice chat → Rosmas Gaming Earbuds. 360° spatial audio, built-in HD mic, in-line volume and call controls.
• Best for long sessions without ear fatigue → Rosmas Gaming Earbuds. 45° angled in-ear fit, silicone tips in S/M/L, lightweight and secure.
• Best for a secure, adjustable over-ear fit → Superlux HD668B. The press-and-lock headband replaced the old wing design for a more stable, personalized fit.
• Best for plug-and-play across consoles → Rosmas Gaming Earbuds. PS5, Xbox, PC, Switch, laptops and mobile, no drivers needed.
• Best for isolation-free, open listening → Superlux HD668B. The semi-open design is the reason it sounds spacious — and the reason it leaks.
• Best for durability on the move → Rosmas Gaming Earbuds. Reinforced braided cable, metal housing, L-shaped plug.
• Best warranty coverage → Rosmas Gaming Earbuds. 18 months versus Superlux's 1-year manufacturer warranty.
In my opinion, the right answer comes down to what you plug into. If your desk is a workspace — a DAW, an interface, a session you're actually judging — I'd buy the Superlux HD668B. The semi-open 50 mm design, neutral tuning and detachable cable are purpose-built for that, and the press-and-lock headband fixes the fit complaint that dogged the older version.
If your desk is a console or a gaming laptop, I'd buy the Rosmas Gaming Earbuds. Spatial audio, a mic, in-line controls, three tip sizes and an 18-month warranty give you a complete gaming kit in one box, and the L-shaped plug and braided cable are the details that keep it alive.
It can work for gaming — the wide spatial imaging from the semi-open 50 mm drivers is genuinely useful for positional cues. But it has no microphone and no in-line controls, so you'd need a separate mic and a way to adjust volume. For pure gaming with chat, the Rosmas set is the more complete tool.
Yes. They use a standard 3.5 mm jack and Rosmas lists compatibility with PS5, Xbox, PC, Switch, laptops and mobile devices with a 3.5 mm jack. No drivers are needed — you plug them in and they work. Just check that your controller or laptop actually has a 3.5 mm port.
Only the Rosmas Gaming Earbuds. They have a built-in HD mic for voice chat plus in-line controls for volume and calls. The Superlux HD668B has no microphone and no in-line controls — it's a straight monitoring headphone.
They solve comfort differently. The Rosmas set uses a 45° angled in-ear fit with soft silicone tips in three sizes, which keeps pressure off your outer ear. The Superlux HD668B uses soft protein-leather earpads on a 260 g frame with a press-and-lock adjustable headband. If you hate things in your ear canal, go Superlux. If you hate headset clamp, go Rosmas.
That's a budget question, and I won't guess at numbers. Both are aimed at buyers who want specific capability — studio-grade tuning on one side, gaming audio plus a mic on the other — without paying for features they won't use. Check the current price on Amazon and decide whether the feature set matches what you'll actually do with them.
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