Sony, JBL and Skullcandy all promise big bass from small earbuds, but they do not mean the same thing by it. Sony treats bass as something to engineer and then hand over to you, JBL treats it as a punch that has to survive the rest of the mix, and Skullcandy treats it as a physical sensation first and a frequency second. That difference matters more than any single spec, because it decides what your music sounds like on the genres you actually play, long after the first impressive bass drop. This guide explains how each brand builds its low end, where each approach shines, where it falls apart, and which tuning style fits which listener.
The short answer: For controlled, adjustable bass with detail intact, Sony’s EQ-led approach wins. For punchy, crowd-pleasing bass that still behaves in pop, rock and podcasts, JBL’s Pure Bass tuning is the safest all-round choice. For the rawest low-end lift, Skullcandy leans in hardest. If one pair has to cover every job today, the JBL Tune Buds balance punch, app EQ and noise cancelling best.
What “good bass” actually means inside an earbud
Bass in an earbud is not one thing. Sub-bass, roughly 20 to 60 Hz, is the part you feel as pressure and rumble: the floor of an electronic track, the weight under a film score. Mid-bass, roughly 60 to 250 Hz, is the part you hear as punch and body: the kick drum hit, the thump of a bass guitar, the warmth in a male vocal. Brands choose which region to emphasise, and that choice is most of what people call a brand’s “sound.” A tuning that piles energy into the mid-bass sounds exciting on a shop demo and tiring after an hour, because that energy masks the lower midrange where vocals and guitars live. A tuning that extends cleanly into the sub-bass sounds powerful without sounding loud, but only if the earbud seals properly.
Seal is the silent variable in every bass comparison. Low frequencies leak first when an ear tip fits poorly, so the same earbud can sound bass-heavy to one listener and thin to another purely because of tip size. Driver size helps, since a larger diaphragm moves more air, but tuning decisions in the processor and companion app matter just as much. That is why the honest comparison is tuning philosophies first, hardware second. For deeper background on shaping low end yourself, our guide to the best bass settings and equalizer adjustments walks through the frequency ranges in detail.
Sony: Extra Bass is a system, not just a boost
The tuning philosophy
Sony’s Extra Bass line, marked by the XB in model names, was built on a simple hardware idea: give low frequencies their own physical pathway. In the earbud that defined the line, the WF-XB700, Sony paired a large 12 mm neodymium driver with a housing shaped to channel bass energy efficiently and a tight ear seal. The important detail is what Sony did not do: it kept the midrange comparatively smooth rather than scooping it out to fake extra impact. The result is bass that hits hard at the bottom while voices stay recognisable on top of it. It is a hi-fi company’s idea of a bass product, and that restraint is both its strength and its limitation.
Where it works, and where it falls apart
The Extra Bass approach works best on electronic music, hip-hop and modern pop, where a strong, clean low foundation is the point of the track and a smooth midrange keeps dense mixes from turning harsh. It falls apart in two specific ways. First, the classic XB earbuds offered no way to adjust the tuning: the WF-XB700 has no companion-app EQ support at all, so the bass level Sony chose is the bass level you live with. Second, the dedicated Extra Bass earbud line itself has aged out. The WF-XB700 is a 2020 model, and Sony’s current earbuds deliver the experience differently: through smaller drivers, active noise cancelling and, crucially, full EQ control in the Sony Headphones app, where a bass-heavy curve can be built, saved and undone in seconds. Sony’s bass philosophy has moved from hardware you cannot change to software you can.
The current Sony representative: WF-C700N
The Sony WF-C700N shows where that philosophy landed. Its 5 mm driver looks modest on paper, but the experience is shaped by the app: a multi-band equaliser with presets and custom slots, DSEE upscaling, and active noise cancelling that protects low-frequency detail by lowering the noise floor around it. Sony specifies Bluetooth 5.2 with SBC and AAC codecs, an IPX4 build and up to 15 hours of total playback with the case. Choose this route if you want controlled low end you can dial up for a workout playlist and back down for a podcast, rather than a fixed boost you cannot escape.
JBL: Pure Bass is punch tuned for the mainstream
The tuning philosophy
JBL’s Pure Bass tuning comes out of the company’s live-sound and portable-speaker heritage, where the job is to make music feel energetic in imperfect conditions: a street, a gym, a bus. In earbuds, Pure Bass means a clear lift centred on the mid-bass region that carries kick drums and basslines, applied over a mainstream balance rather than an extreme one. Vocals and treble stay present enough for pop and rock, and JBL then hands you a full equaliser in the JBL Headphones app to move the curve toward your own taste. Where Sony historically fixed its bass decision in hardware, JBL fixes its decision at “lively” and gives you the tools to argue with it.
Where it works, and where it falls apart
Pure Bass works almost everywhere casual listening happens, which is precisely its design goal. It flatters chart pop, hip-hop, EDM and workout playlists, keeps enough clarity for calls and video, and holds its low end together on public transport, where road noise otherwise eats bass first. The weakness shows up in quieter material. On acoustic recordings, jazz trios or classical pieces, the default lift can add warmth the recording never asked for; the fix exists in the app EQ, but a listener who never opens the app judges JBL by that default curve alone. Pure Bass is also less extreme than bass-first rivals at maximum boost, so a listener chasing the deepest rumble may find it polite.
The current JBL representative: Tune Buds
The JBL Tune Buds are Pure Bass in its current, complete form: 10 mm drivers, Bluetooth 5.3, active noise cancelling with Ambient Aware and TalkThru modes, a four-microphone system for calls, and up to 48 hours of total battery life with the case. JBL rates the design as water and dust resistant for everyday and workout use, and the app EQ makes the tuning adjustable rather than fixed. Of the three philosophies here, this one asks the least of the listener: it sounds engaging out of the box and can be corrected in the app when it does not.
Skullcandy: bass as a sensation, heritage of excess
The tuning philosophy
Skullcandy built its name in action sports, and its Supreme Sound tuning has always prioritised impact and fun over neutrality. The clearest statement of the philosophy sits in its over-ear Crusher line, where a dedicated Sensory Bass driver adds a haptic, vibrating layer you physically feel alongside the bass you hear; our Skullcandy Crusher ANC 2 review covers how that system behaves. Earbuds are too small for a second haptic driver, so in buds the same idea becomes an aggressive low-frequency lift plus a Bass Boost EQ preset that pushes it further. The goal is not accuracy. The goal is that a drop feels like an event, and Skullcandy is refreshingly honest about that trade.
Where it works, and where it falls apart
That approach works where it is aimed: gym sessions, skating, snowboarding and bass-first genres like dubstep, trap and drum and bass, where energy matters more than texture. It falls apart on exactly the material JBL handles gracefully. With Bass Boost engaged, the low-end lift crowds the lower midrange, vocals recede behind the kick, and busy rock mixes lose separation; the EQ control on most Skullcandy buds is a set of presets (Music, Bass Boost, Podcast) rather than an adjustable multi-band equaliser, so the correction available is coarse: on or off, not shaped. Most models in this class also skip active noise cancelling in favour of passive isolation, so low-frequency detail is the first casualty in a loud environment. None of that makes the tuning wrong. It makes it specialised.
The current Skullcandy representative: Dime 3
The Skullcandy Dime 3 distils the philosophy into a compact, pocketable bud: Supreme Sound tuning, three preset EQ modes including Bass Boost, a noise-isolating fit, Stay-Aware mode, multipoint pairing, Tile finding technology for a lost bud, and up to 20 hours of total battery life with an IPX4 rating. There is no active noise cancelling and no granular EQ, and at this level that is the honest bargain: the money goes into the fun tuning and fit rather than processing. For a bass-first listener who mostly trains and plays electronic or hip-hop playlists, it delivers the brand’s signature character without paying for unused refinement.
Head-to-head: the three approaches side by side
The table below compares each philosophy’s representative model on the factors that actually shape bass performance: how the low end is produced, how much control you get over it, and how well it survives real environments.
| Factor | Sony | JBL | Skullcandy |
|---|---|---|---|
| Representative model | Sony WF-C700N | JBL Tune Buds | Skullcandy Dime 3 |
| Bass approach | Extra Bass heritage, now delivered through app EQ and DSEE | Pure Bass mid-bass lift over a mainstream balance | Supreme Sound lift with a Bass Boost preset |
| Driver | 5 mm dynamic | 10 mm dynamic | Dynamic, compact bud design |
| EQ control | Full app equaliser with custom presets | Full app equaliser with custom presets | 3 presets: Music, Bass Boost, Podcast |
| Noise control | Active noise cancelling | Active noise cancelling with Ambient Aware | Passive noise-isolating fit, Stay-Aware mode |
| Total battery (with case) | Up to 15 hours | Up to 48 hours | Up to 20 hours |
| Water resistance | IPX4 | Water and dust resistant (IP54) | IPX4 |
| Check price | Check Price | Check Price | Check Price |
Read the table as three answers to one question. Sony and JBL both end at adjustable, app-controlled bass, but from opposite defaults: Sony from restraint you can raise, JBL from energy you can trim. Skullcandy starts from maximum fun and offers a preset switch rather than a dial.
Which brand’s bass fits which listener?
Choose Sony if you listen widely and like control. A library that moves between electronic music, soul, podcasts and acoustic sets benefits from the EQ-led approach, because the bass follows the material instead of the material fighting the bass. Sony also suits listeners who hear bass quality as cleanliness: low notes that start and stop on time rather than bloom and linger.
Choose JBL if you want one pair for everything. Pure Bass is the commuter and all-rounder tuning: engaging on the train, clear enough for calls and video, durable in the gym, and correctable in the app when it oversteps. If your playlists are mostly pop, rock, hip-hop and workout mixes, this philosophy has the fewest bad days.
Choose Skullcandy if bass is the headline act. If your listening is dominated by electronic, trap, hip-hop and training playlists, and you judge a drop by what it does to your chest rather than your ears, Skullcandy’s lift and Bass Boost preset are built for you. Go in knowing that vocal-forward and acoustic material is where the compromise lives.
Still undecided? Our roundup of the best bass wireless earbuds compares bass-focused models across all brands in one place, and if your listening happens at a desk, the companion guide to the best bass headphones covers the over-ear equivalents, where larger drivers push the physical-bass argument even further.
How to get more, or less, bass from any of them
Whichever brand you choose, three adjustments matter more than any model swap. First, fit: try every tip size in the box, because a seal that feels merely snug can still leak the sub-bass that separates a good tuning from a great one. Second, EQ direction: add bass in small steps rather than one large boost, and if vocals sound veiled, trim the 125 to 250 Hz region slightly instead of lowering the whole low end. Third, volume awareness: bass perception rises with loudness, so a tuning that seems thin quietly and overwhelming loudly is often your hearing curve, not the earbud. Sony and JBL make all of this adjustable in their apps; on Skullcandy, pick the preset that matches the genre and let the fit do the rest.
Frequently asked questions
Which brand has the strongest bass: Sony, JBL or Skullcandy?
Skullcandy delivers the most aggressive low-end lift of the three, especially with its Bass Boost preset engaged, while JBL’s Pure Bass is punchier than it is deep, and Sony’s current earbuds offer the most controlled bass because the level is set mainly through app EQ. Strongest and best are not the same thing: the right answer depends on whether you want maximum impact, everyday punch or adjustable control.
What is Sony Extra Bass, and can you still buy it in earbuds?
Extra Bass is Sony’s dedicated bass line, marked by XB model names, built around large drivers, bass-focused housing design and a tight seal, as heard in the WF-XB700. That specific earbud line has aged out, and Sony’s current earbuds deliver the same philosophy through app equalisation, DSEE processing and noise cancelling instead, which makes the bass adjustable rather than fixed.
What is JBL Pure Bass tuning?
Pure Bass is JBL’s house tuning, carried over from its speakers and live-sound products. It lifts the mid-bass region that carries kick drums and basslines so music feels punchy and energetic, while keeping vocals and treble present enough for mainstream genres. On current earbuds such as the Tune Buds, a full app equaliser lets you raise or reduce that lift to taste.
Does Skullcandy’s sensory bass exist in its earbuds?
Not in the same form. Sensory Bass is a feature of Skullcandy’s Crusher over-ear headphones, where a separate haptic driver adds a physical vibration you can feel. The earbuds are too small for that second driver, so models like the Dime 3 express the same bass-first philosophy through an aggressive Supreme Sound lift and a Bass Boost EQ preset instead.
Can you turn the bass down if a brand’s tuning is too much?
On Sony and JBL earbuds, yes: both companion apps include multi-band equalisers with custom presets, so the low end can be reduced as precisely as it can be raised. On most Skullcandy earbuds the control is a choice of presets, so switching from Bass Boost back to the Music preset is the main adjustment available.
Why do bass earbuds sometimes sound weak?
The most common cause is fit, not tuning. Low frequencies escape first through a poor ear-tip seal, so an earbud known for strong bass can sound thin if the tip size is wrong. Trying a larger tip, seating the bud deeper, and only then judging the tuning fixes the problem in most cases, regardless of brand.
Three brands, three definitions of bass: Sony engineers it and hands you the controls, JBL punches it up and keeps it sociable, and Skullcandy turns it into a physical event and accepts the trade-offs. Decide which definition matches your library first, and the model choice becomes the easy part.
I am the founder of Sound Mavericks, where I provide the polite truth about audio equipment. I started this site because consumer electronics reviews are often too technical. Instead of using a silent lab, I test headphones, earbuds, and Bluetooth speakers in the real world – like on a noisy subway or in a busy coffee shop.
To stay independent, I buy my own review units (mostly from the United States) rather than accepting free gifts from brands. Once I finish testing a product, I sell it locally to our community. My goal is to help you understand sound quality, active noise cancellation (ANC), and battery life without the marketing hype.
