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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
• Sony MDR-XB500 — biggest strength: A 40mm Extra Bass diaphragm driver paired with a tightly sealed, closed acoustic design and an ultra-wide 4 Hz–24 kHz frequency range, built specifically to push deep, extended bass.
• Sony MDR-XB500 — biggest trade-off: It's wired only, so there's no Bluetooth, no battery, and no mic — you're tethered to your source by a 1.2m flat cord.
• PowerLocus Headphones Over Ear — biggest strength: Bluetooth 5.3, a built-in noise-cancelling mic, up to 50 hours of playtime, and 4 EQ modes including a dedicated Bass setting.
• PowerLocus Headphones Over Ear — biggest trade-off: Its frequency range (20 Hz–20,000 Hz) doesn't reach as low as the Sony's on paper, and its noise control is passive isolation rather than active cancellation.
• Who each pick is for: Choose the Sony if bass depth and wired fidelity are the priority; choose PowerLocus if you want wireless convenience, calls, and all-day battery.
The MDR-XB500 is Sony's dedicated bass machine. Its headline feature is a 40mm Extra Bass diaphragm driver, and everything around that driver is engineered to let low frequencies breathe. The enclosure is a closed, dynamic, over-the-head design with a "direct vibe structure" and a tightly sealed acoustic design — which is a fancy way of saying the cups trap sound so the bass stays full and extended instead of leaking away. The frequency response runs from 4 Hz up to 24,000 Hz, and 4 Hz is remarkably low; that's the kind of spec that tells you this headphone was tuned to reach into sub-bass territory, not just add a thump.
Who should buy it? Someone who listens at a desk or on a couch, mostly to music, movies, or games, and who wants deep, powerful bass driven by a wired connection. The cable matters here — it means no charging and no pairing, just plug in and go. Who should skip it? Anyone who needs wireless. There's no Bluetooth, no battery, no microphone, and no voice control. If you take calls, move around the house, or want to leave your phone on the other side of the room, this isn't the tool. The 90-day limited warranty is also notably short compared to what PowerLocus offers.
PowerLocus Headphones Over Ear: Who It's For
The PowerLocus P3 is the modern, do-everything alternative. It runs on Bluetooth 5.3 with a wireless range up to 36 feet (about 12 meters), so you can pair it once and roam. It also supports a wired mode via a 3.5mm jack, which is a genuinely useful fallback when the battery is low or when you're plugging into a device that doesn't do Bluetooth. On sound, it uses 40mm dynamic drivers with a 20 Hz–20,000 Hz range, 32-ohm impedance, and tuning aimed at "deep bass and extended treble." Better still, it gives you four EQ modes — Pop, Bass, Vocal, and Rock — so you can dial in more low-end or more clarity depending on the track.
The practical stuff is where it pulls ahead. Playtime is rated up to 50 hours, with a full charge taking about 2 hours via USB-C. There's a built-in noise-cancelling microphone for calls and online meetings, plus multipoint connection so it can hold two devices at once. The body is foldable and light at 181 grams, with soft memory foam earmuffs and a padded headband, and it uses passive noise isolation to block out the room. It ships with a cable, a USB-C charging cable, and a firm-shell carrying case. The warranty is 2 years full, with a 30-day free return policy and 24/7 support.
Who should buy it? Commuters, remote workers, gym-goers, and travelers — anyone who wants one headset for music, calls, and video, without a cable. Who should skip it? A purist chasing maximum sub-bass extension on a wired connection may find the Sony's 4 Hz low-end and sealed acoustic design more purpose-built. If deep, physical bass is your single obsession and you never need wireless, the Sony is the more specialized instrument.
• Best for deepest bass on paper → Sony MDR-XB500. Its sealed Extra Bass design and 4 Hz–24 kHz range are built around low-frequency reproduction.
• Best for wireless freedom → PowerLocus Headphones Over Ear. Bluetooth 5.3 with up to 36 feet of range.
• Best for battery life → PowerLocus Headphones Over Ear. Up to 50 hours of playtime, charged in about 2 hours via USB-C.
• Best for calls and meetings → PowerLocus Headphones Over Ear. Built-in noise-cancelling mic and multipoint connection; the Sony has no mic.
• Best for EQ flexibility → PowerLocus Headphones Over Ear. Four modes (Pop, Bass, Vocal, Rock) versus a fixed tuning on the Sony.
• Best for long wired home sessions → Sony MDR-XB500. King-sized 3.7-inch, 1.8-inch-thick cushions and angled drivers for pressure relief.
• Best for travel and storage → PowerLocus Headphones Over Ear. Foldable, 181 grams, and a firm-shell carrying case included.
• Best for warranty confidence → PowerLocus Headphones Over Ear. 2 years full versus Sony's 90-day limited.
In my opinion, the PowerLocus Headphones Over Ear is the smarter buy for most people. It covers far more ground: wireless, wired backup, a mic for calls, 50 hours of battery, four EQ modes, a foldable 181-gram build, and a 2-year warranty. The Sony MDR-XB500 still wins on one thing that matters enormously to bass lovers — a sealed, Extra Bass design with a 4 Hz low-end that was engineered purely for deep, wired low-frequency punch. If that's your single goal, get the Sony. If you want one headset for everything else, get the PowerLocus.
Deep bass refers to the lowest audible frequencies — roughly the sub-bass and low-bass region. A headphone's ability to reproduce it well shows up in its frequency range and driver design. The Sony MDR-XB500 reaches down to 4 Hz, while the PowerLocus reaches 20 Hz, which is why the Sony is positioned as the more bass-focused option.
The Sony MDR-XB500 is a wired headphone, so there's nothing to pair. You plug its gold-plated 3.5mm stereo mini plug into your device's headphone jack using the attached 1.2m flat cord. It has no Bluetooth, so it connects only through that physical cable.
You don't pair the MDR-XB500 — it has no wireless connectivity. Pairing applies to Bluetooth models like the PowerLocus, which uses Bluetooth 5.3 to connect to phones, tablets, laptops, and TVs. For the Sony, just plug in the cable.
That's a different brand from either headphone here, so I can't give model-specific steps. The general process for any Bluetooth headphone is the same: put the headphones in pairing mode, open your device's Bluetooth settings, and select them. Specific button combinations vary by model.
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