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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-26 · 7 min read · Independent comparison
• Creative 51EF0370AA010 — biggest strength: a circum-aural closed-back over-ear design with 40mm Neodymium drivers and CCAW voice coils, plus leatherette padding for long wear sessions.
• Creative 51EF0370AA010 — biggest trade-off: it's a wired, passive-noise-cancelling headphone with no tuning options or detachable cable, so you get one fixed sound signature.
• ooopusX Op.24 — biggest strength: a hybrid 2-dynamic + 4-balanced-armature architecture with a physical dual-mode tuning dial that switches between two impedance profiles (15Ω and 27Ω).
• ooopusX Op.24 — biggest trade-off: it's an in-ear design, which means fit and tip selection matter a lot, and it only works with the wired connection you choose (Type-C with mic).
• Who each pick is for: Creative 51EF0370AA010 suits listeners who want fuss-free over-ear comfort; ooopusX Op.24 suits tinkerers and gamers who want to shape their own sound.
The Creative HQ-1600 is an old-school over-ear headphone done in a straightforward way. The circum-aural closed-back ear cup design fully covers your ears rather than pressing on them, which is the main reason this style tends to stay comfortable over long stretches. Creative pairs that with soft leatherette padding, so if you wear headphones for hours while working, studying or just listening through an evening, that's the comfort story here.
On the inside, the spec sheet points to 40mm Neodymium dynamic drivers and Copper-Clad Aluminum Wire voice coils. CCAW voice coils are a lightweight conductor choice, and paired with Neodymium magnets the intent is efficient, punchy playback from whatever you plug in. The chrome-finished housing uses aluminum and copper materials, so it has a bit of a metallic, retro look rather than a plasticky one. It weighs 7.04 ounces, which is normal for a full-size over-ear model — nothing featherweight, but nothing alarming either.
Connectivity is a 3.5mm wired jack, and the package includes a gold-plated plug and an extendable high-purity Oxygen-Free Copper cable. That's a useful detail for desktop use: you can stretch the cable to reach a PC or home entertainment system without hunting for an extension. Noise control is passive, handled by the closed-back seal rather than electronics.
ooopusX Op.24: Who It's For
The ooopusX Op.24 is a very different animal. This is an in-ear monitor with a hybrid driver array: two dynamic drivers plus four balanced armatures, arranged in a three-way acoustic architecture. The dynamic side uses a custom coaxial 10mm + 8mm pair, and ooopusX specifically notes that combining different-sized dynamic units let them cut low-frequency distortion by roughly half an order of magnitude. That's a design claim from the spec sheet, but it tells you where the engineering attention went — bass control.
The headline feature is the Tunable Acoustics physical dual-mode tuning dial. Instead of an app or a software EQ, there's a physical dial on the housing with an independent dual-channel electronic crossover behind it. You switch modes and the impedance changes with it: 15Ω in Mode 1 and 27Ω in Mode 2. In plain terms, that means one mode is easier to drive and the other asks more of your source — and the sound character shifts along with it. Two sound profiles from one earphone, without touching a settings menu.
The rest of the numbers are IEM numbers. Sensitivity is rated at 127dB/Vrms, THD is under 1% at 1kHz, and frequency response runs from 10Hz to 40kHz — the top end is well past what human hearing needs, which usually signals a driver suite with headroom rather than a hard cutoff. The diaphragm is a silicone composite carbon fiber dome, and the cable is oxygen-free silver-plated. The connector is the 0.78mm 2-pin style, so the cable is replaceable — a real advantage for IEMs, since cables are the part that wears out first. The model in this listing is the Type-C with mic version, so it's aimed at phone, laptop and gaming use rather than a 3.5mm jack. It's white, over-ear in the sense of cable routing, and backed by a one-year manufacturer warranty.
Who should buy it: gamers, mobile listeners and anyone who wants to experiment with two distinct sound signatures and swap cables down the line. Who should skip it: if you dislike in-ear fit, want over-ear comfort, or need a plain 3.5mm plug, this will frustrate you.
Side-by-Side: Which Should You Choose?
• Best for all-day comfort → Creative 51EF0370AA010. Circum-aural cups and leatherette padding cover the ears instead of sitting inside them.
• Best for critical listening detail → ooopusX Op.24. Six drivers per side, a three-way crossover and a 10Hz–40kHz rating point to a more resolving design.
• Best for plug-and-play simplicity → Creative 51EF0370AA010. One 3.5mm jack, one cable, no mode switching, no tip rolling.
• Best for gaming and voice chat → ooopusX Op.24. The Type-C with mic configuration is built for headsets-on-a-call use.
• Best for cable longevity → ooopusX Op.24. The 0.78mm 2-pin connector means the silver-plated cable can be replaced.
• Best for desktop and home stereo → Creative 51EF0370AA010. The extendable Oxygen-Free Copper cable and gold-plated plug suit a PC or hi-fi setup.
• Best for passive noise blocking without electronics → Creative 51EF0370AA010. The closed-back over-ear seal does the work with no battery or circuitry.
If I had to pick one, I'd go with ooopusX Op.24 — but only for a specific kind of buyer. In my opinion, the tunable dial, the six-driver hybrid setup and the swappable 2-pin cable give you far more room to grow with the product, and the Type-C with mic version covers gaming and calls out of the box. The catch is fit: in-ears live or die by how they sit in your ears, and no spec sheet can promise that for you.
If you'd rather not deal with any of that, I'd point you to Creative 51EF0370AA010. It's the safer, lower-effort pick: over-ear comfort, a standard 3.5mm jack and a design that just works with the gear you already own.
Check the current price on Amazon before deciding — that's the one variable that can flip this choice.
FAQ
Yes, per the spec sheet. The physical tuning dial switches between two modes with different impedance ratings — 15Ω in Mode 1 and 27Ω in Mode 2 — using an internal dual-channel crossover.
This listing is the Type-C with mic version, so it's built for Type-C sources. If your device only has a 3.5mm jack, the Creative 51EF0370AA010 is the more direct fit.
The Creative 51EF0370AA010 relies on passive noise cancellation from its closed-back over-ear seal. The Op.24 blocks noise mainly through the in-ear seal, which varies with tips and fit, so results depend on how well they sit in your ears.
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