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
If you want the bass-first Sony tuning, an inline remote and mic, and a folding on-ear build you can stuff in a bag, choose Sony MDRXB450AP; if you need an over-ear fit that surrounds the whole ear with plush padding and passive noise isolation, choose Generic CLASSIDEEK Lightweight Over.
• Sony MDRXB450AP — biggest strength: A purpose-built bass machine. Sony's Acoustic Bass Booster pairs with 30 mm dynamic drivers rated down to 5 Hz, plus an inline mic and remote for calls and volume.
• Sony MDRXB450AP — biggest trade-off: The earpieces sit on your ears rather than around them, so there's no passive isolation listed and no noise control at all.
• Generic CLASSIDEEK Lightweight Over — biggest strength: Full over-ear coverage with plush padded earpads that surround the entire ear and physically block some ambient noise.
• Generic CLASSIDEEK Lightweight Over — biggest trade-off: Fewer moving parts in the spec sheet — no inline mic or remote listed, no folding swivel, and a higher 48 ohm impedance that asks a bit more of your phone.
• Who each pick is for: Pick the Sony if bass punch, hands-free calling and portability top your list. Pick the CLASSIDEEK if long-session comfort and ear-surrounding padding matter more.
The MDRXB450AP is the more specialized tool of the two. Sony built it around bass: an Acoustic Bass Booster works with 30 mm dynamic drivers covering a stated 5 Hz to 22 kHz range, and the 32 ohm impedance means a phone or laptop can drive it without help. If your library leans toward hip-hop, EDM, trap or anything where the low end is the point, the whole design is pointed at you. The in-line microphone and remote add real everyday value — you can take a call or nudge the volume without pulling the phone out of your pocket, and the free SmartKey app lets you remap what that remote button does, which is a genuinely useful touch if you switch between Apple and Android devices.
The physical build is the other half of the story. At 5.82 oz without the cord, it's light enough to forget you're wearing it, and the swivel design folds the earcups flat for tossing into a bag. The included cord is a 47 1/4 inch (1.2 m) tangle-free Y-type cable, which is long enough to reach a pocket but short enough not to snag on everything. The aluminum enclosure in blue gives it a slightly more finished look than the price-adjacent generic category usually manages.
Who should skip it? Anyone who wants the earcups to surround their ears. On-ear designs press against the outer ear, and Sony lists no noise control here at all. If you work in a noisy room, commute on a loud train, or wear headphones for four-hour stretches, the pressure and the lack of isolation will wear on you. Also skip it if you need a mic-free, remote-free pure listening tool — you'd be paying for features you won't use.
The CLASSIDEEK pair takes the opposite approach. Rather than tuning hard toward one frequency band, it leans on fit and coverage: these are true over-ear headphones, and the earpads are plush and padded so they sit around the ear instead of on it. That single design choice changes the whole experience. Over-ear padding spreads pressure across a wider area, which is why the company markets these for "comfortable extended wear" — and for a lot of people, that's the difference between a pair they keep on all afternoon and one they rip off after an hour. The padding also does double duty: it physically blocks some ambient noise, and CLASSIDEEK lists passive noise cancellation as a feature. That's not active noise cancelling, and it won't silence a jet engine, but it will take the edge off a fan, a shared office, or street chatter.
Audio-wise, the company promises clear, immersive sound with enhanced bass. There's an extra-bass claim here just like on the Sony, but the framing is different — this is bass as one part of a balanced, clear presentation rather than the headline act. The spec sheet backs up the generalist positioning with a 48 ohm impedance, which is a little harder to drive than the Sony's 32 ohms. Most phones and laptops will still handle it fine, but a weak output or a cheap dongle might leave you reaching for more volume.
Practical details: a standard 3.5 mm jack means it plugs into basically anything with a headphone port — laptops, desktops, tablets, game controllers, older phones. The cord is described as long and tangle-free, so you get more slack than the Sony's 1.2 m cable. There's a listed 1-year warranty, and the color is black/gray. What's not in the spec sheet matters too: no inline mic, no remote, no folding swivel, and it's explicitly not water resistant. Who should skip it? Anyone who takes calls on their headphones, anyone who wants the earcups to fold flat, and anyone who needs the lowest possible impedance for a weak source.
• Best for deep, boosted bass → Sony MDRXB450AP. The Acoustic Bass Booster plus 5 Hz–22 kHz drivers is the more explicitly bass-focused design.
• Best for long listening sessions → Generic CLASSIDEEK Lightweight Over. Over-ear plush padding beats on-ear pressure for marathon wear.
• Best for blocking background noise → Generic CLASSIDEEK Lightweight Over. Passive noise cancellation from ear-surrounding pads; the Sony lists no noise control at all.
• Best for phone calls and quick volume changes → Sony MDRXB450AP. Inline mic, remote volume control, and the SmartKey app for customizing the button.
• Best for packing in a bag → Sony MDRXB450AP. The swivel design folds the cups flat; the CLASSIDEEK has no folding feature listed.
• Best for reaching across a desk or couch → Generic CLASSIDEEK Lightweight Over. Its cord is described as long; the Sony's is a fixed 1.2 m.
• Best for low-power sources → Sony MDRXB450AP. 32 ohms is easier to drive than the CLASSIDEEK's 48 ohms.
• Best for plug-and-play across devices → Both. They share a standard 3.5 mm jack, so compatibility isn't the deciding factor here.
If you asked me to pick one, I'd take the Sony MDRXB450AP. In my opinion, it's the more complete package: the bass-forward tuning is the point of the product and it delivers on that promise, and the inline mic, remote, SmartKey app, swivel folding and lighter 32 ohm load all add up to a headphone that adapts to more situations. The CLASSIDEEK is the better choice only if comfort and ear-surrounding isolation are your top two priorities and you never take calls on your headphones. For most people reading a deep-bass comparison, the Sony is the one I'd buy.
how to pair sony extra bass headphones
The MDRXB450AP is a wired headphone, so there's nothing to pair — it connects through its 3.5 mm jack and the inline remote plugs into your phone's headphone port. If you're using a phone without a headphone jack, you'd need an adapter. The SmartKey app is the only software step, and it's for customizing what the remote button does, not for Bluetooth pairing.
how to connect sony extra bass headphones
Plug the 3.5 mm jack into your device's headphone socket and you're done. Make sure the plug is fully seated, then use the inline remote for volume and calls. The spec sheet lists wired connectivity with a 47 1/4 inch (1.2 m) tangle-free Y-type cord, so there's no charging or pairing involved.
how to connect jvc deep bass wireless headphones
That's a different product line, and neither headphone here is wireless — both the Sony MDRXB450AP and the CLASSIDEEK are wired models with 3.5 mm jacks. If you're shopping for a wireless bass headphone, you'll want to look at a Bluetooth model instead, since neither of these needs pairing or charging.
what is deep bass in headphones
Deep bass refers to how far down the low-frequency range a headphone can reach — sub-bass and low bass, the rumble under kick drums and synth lines. The Sony lists a frequency range starting at 5 Hz, which indicates extended low-end capability. The CLASSIDEEK markets "extra bass technology" for enhanced low end, though its spec sheet doesn't list a frequency range.
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