Quick Answer

If your Sony WH-1000XM5 sounds noticeably quieter than you'd expect even at maximum volume, the most likely cause is not a broken headphone. In most documented cases, it comes down to one of three things: the volume on your phone and the volume on the headphones aren't synced, an Android Bluetooth setting called "absolute volume" is capping the output, or the headphones' bass-forward sound signature is making mid-range and vocal content feel quieter even though the overall output level hasn't changed. A hardware fault is possible but appears to be the less common explanation based on the available reports.

Before assuming the unit is defective, work through the troubleshooting steps below. If none of them help, Sony's own support channel — not a generic forum fix — is the right next step, since only Sony can determine whether a specific unit needs repair or replacement.

Is This a Widely Reported Problem?

It's worth being precise about how common this actually is, because the evidence doesn't point to a mass hardware defect.

Sony maintains an official troubleshooting page in its Help Guide specifically titled "Low sound level" for the WH-1000XM5, which indicates the company treats quiet output as a known, addressable situation rather than something unique to a faulty batch. On the Sony UK community forum, at least one user documented the issue in detail: with the Sony Headphones Connect app volume slider at 100% and the phone volume also maxed, they measured roughly 90 dB with a sound meter, noted that the difference between an 80% and 100% slider position was barely audible, and said the headphones were even quieter when paired to an iPad. That user had already disabled Android's "absolute volume" setting and other phone-level audio safety features without full resolution.

That's a real, specific, first-hand account — but it's a single documented report, not a pattern confirmed across many independent owners. YallaBuy could not find independent lab testing (RTINGS, SoundGuys, or similar) reporting the WH-1000XM5 as measurably quieter than comparable headphones at maximum volume; if anything, one independent review site's measurements suggested the opposite. Treat "too quiet" here as a real but apparently uncommon complaint with several identifiable, mostly fixable causes, rather than a confirmed widespread hardware issue.

The Most Likely Causes, Ranked

1. Volume isn't synced between your phone and the headphones (Official Sony guidance)

Sony's own troubleshooting documentation for "Low sound level" on the WH-1000XM5 lists this as the first thing to check: depending on the connected device, the volume level on the phone and the volume level on the headphones may not stay in sync. If you previously turned the headphone volume down independently (via the touch controls) and then turned your phone's volume back up, the phone has no way of knowing the headphones are still capped low, and vice versa.

Why it matters: This is the one cause Sony explicitly documents, which means it's likely the most common real-world trigger, at least by Sony's own estimation.

Fix: Manually raise the volume on both the headphones (via touch control) and the connected device (phone, tablet, or computer) to a high level, then adjust down from there.

2. Android's "absolute volume" Bluetooth setting is capping output

This is not specific to the WH-1000XM5 — it's a long-documented behavior in Android's Bluetooth stack, and it shows up in support forums for Samsung, other Android brands, and a wide range of Bluetooth headphones and speakers, including the Sony community thread referenced above. Absolute volume is a Bluetooth protocol feature that lets the phone and the headset share a single volume value instead of two independent ones. When it misbehaves — which multiple phone manufacturers' own community forums acknowledge happens after certain software updates — the result is often a headset that's stuck sounding quiet regardless of how high the phone volume is set.

Evidence status: This is a well-documented Android-wide behavior (confirmed across multiple phone brands' own support communities), not a claim specific to Sony hardware. The Sony community user who reported the WH-1000XM5 sounding quiet had already tried disabling absolute volume and said it didn't fully resolve their issue — so this fix helps some people but evidently not everyone.

Fix (Android only): Enable Developer Options (Settings > About Phone > tap the build number 7 times), then look for "Disable absolute volume" under Developer Options and toggle it. You'll need to unpair and re-pair the headphones afterward for the change to apply. Note that this setting's exact location varies by Android version and phone manufacturer, and on some phones it has been removed or renamed in recent Android releases.

3. The volume slider doesn't map cleanly to real-world loudness

One independent review (Headphonesaddict) that measured the WH-1000XM5's output against the Sony Headphones Connect app's displayed volume level found the app under-reports the headphones' actual loudness by around 3 dB — meaning the headphones were slightly louder in practice than the app's slider suggested, not quieter. That's a data point against the idea that the WH-1000XM5 is inherently underpowered, though it doesn't rule out unit-to-unit variation or the sync problems described above.

Separately, a hands-on writeup from Counterpoint Research reported that during their testing period, they rarely needed to go past 50% volume at home, and 80% was "more than enough" outdoors — again suggesting that when the headphones are working normally, low-percentage volume settings are usually not the limiting factor.

YallaBuy analysis: Taken together, this independent evidence suggests the headphones themselves are not systematically underpowered. If your unit genuinely can't get loud enough even after the fixes above, that points more toward a sync/software issue on your specific phone or a possible unit defect than toward an inherent design limitation.

4. The sound signature can make some content feel quieter than it is

SoundGuys' independent testing found the WH-1000XM5 has a noticeably bass-forward tuning, with the midrange (roughly 300 Hz–1050 Hz) sitting lower relative to the bass and treble. Vocals, dialogue, and stringed or wind instruments live largely in that midrange. Because of how loudness is perceived, a track that's technically at the same overall volume can sound quieter or "duller" when the frequencies your ear is straining to hear are recessed relative to the bass and highs.

Why it matters: This wouldn't explain music sounding faint at a sound-meter level, but it can explain a common complaint pattern: "voices/dialogue seem too quiet even with the volume up," particularly with movies, podcasts, or calls. This is a tuning characteristic, not a fault, and it's adjustable.

Fix: Use the graphic EQ or genre presets in the Sony Headphones Connect app to reduce bass slightly and/or boost the 500 Hz–2 kHz range. For movies and dialogue-heavy content specifically, look for a "Clear Bass" reduction or a custom EQ with a mid-range lift.

5. A safety or accessibility feature is silently limiting volume

The Sony Headphones Connect app includes a "Safe Listening" feature that records and displays your accumulated sound-pressure exposure against World Health Organization listening guidelines and can send notifications as you approach recommended limits. Based on Sony's own description, this feature is presented as a monitoring and notification tool rather than a feature that is described as automatically capping playback volume. YallaBuy could not independently verify whether Safe Listening enforces a hard limit in addition to notifying, so if you have it enabled, it's still worth checking as a possible contributor and disabling temporarily to test.

Separately, on Android specifically, a phone-level "media volume limit" (found in Settings > Sound, sometimes under a Bluetooth device's own options menu) is a known feature on Samsung and other Android phones that can cap Bluetooth output independently of the app you're using. This is phone software, not a Sony feature, but it produces an identical symptom.

Fix: Check both the Sony app's Safe Listening setting and your phone's own Bluetooth/media volume limit settings, and temporarily disable each one to test.

6. Bluetooth codec, connection quality, or a stale pairing

Sony's own troubleshooting page also recommends reconnecting the Bluetooth connection from scratch, resetting the headset, or fully initializing it back to factory settings and re-pairing, as generic fixes for low sound level. A degraded or unstable Bluetooth connection, an outdated headphone firmware version, or a corrupted pairing profile can occasionally produce quieter or distorted audio without a hardware fault being present. YallaBuy did not find independent evidence tying a specific Bluetooth codec (AAC, SBC, or LDAC) to lower perceived loudness on the WH-1000XM5, so this should be treated as a general connection-health check rather than a codec-specific fix.

Step-by-Step Troubleshooting Checklist

Work through these roughly in order, since they're arranged from "takes 10 seconds" to "takes a few minutes":

  1. Turn the volume all the way up on both ends — the headphones (via touch control) and the connected device — even if one already looks maxed out.
  2. Check for a phone-side media volume limit in your phone's sound settings, and separately check any per-device Bluetooth volume option.
  3. Toggle Android's "absolute volume" setting in Developer Options, then unpair and re-pair the headphones. Skip this step on iPhone, since iOS doesn't expose this setting.
  4. Open the Sony Headphones Connect app, check the Safe Listening setting, and try adjusting or temporarily disabling any EQ preset that heavily boosts bass, since a recessed midrange can make vocals and dialogue sound quieter.
  5. Disconnect and reconnect the Bluetooth pairing. If that doesn't help, use the app or the headset's reset procedure to reset the headphones, then re-pair from scratch.
  6. Check for a firmware update in the Sony Headphones Connect app and install it if one is available.
  7. Test with a different source device — another phone, a laptop, or the included audio cable in wired mode — to determine whether the issue follows the headphones or stays with one specific device. This single test does more to isolate the cause than almost anything else on this list.
  8. As a last resort, fully initialize the headphones to factory settings and set them up as new.
  9. If the headphones are still clearly quieter than a similar pair (or than they used to be) after all of that, and especially if the wired-cable test in step 7 also sounds quiet, that points toward a hardware issue rather than a software one, and it's time to contact Sony support directly rather than continuing to try community fixes.

Owner Feedback: How Much Should You Weigh This?

Based on the available public reports, this reads as an isolated-to-limited complaint pattern rather than a confirmed recurring defect. YallaBuy found one detailed first-hand account on Sony's own community forum and general (non-Sony-specific) discussion of the Android absolute-volume bug affecting many Bluetooth devices across brands. That is not the same evidence base as, say, a documented battery-degradation pattern reported across dozens of independent owners. If you're considering the WH-1000XM5 and this is the only concern giving you pause, the current evidence doesn't support treating it as a common dealbreaker — but it's reasonable to test the headphones thoroughly during your return window regardless.

Is the WH-1000XM5 Underpowered Compared to Competitors?

Independent outlets that have tested the WH-1000XM5 generally describe it as loud enough for normal use without needing to push the volume near maximum — Counterpoint Research's hands-on testing noted 50% was typically sufficient at home and 80% was enough outdoors, and TechRadar and other reviewers who tested the headphones' sound quality did not flag insufficient loudness as a shortcoming. That's consistent with a headphone that outputs plenty of volume under normal conditions, which makes an isolated, resolvable software or pairing issue a more likely explanation for individual "too quiet" reports than a fundamental design limitation.

If you've worked through every fix here and the headphones are still unusually quiet on multiple source devices — including in wired mode — that's a legitimate reason to contact Sony support about a possible hardware fault, rather than a sign that the model itself is prone to running quiet.

Frequently Asked Questions

Not necessarily. Based on the available evidence, most reported cases of quiet output trace back to a volume-sync issue between the phone and headphones, Android's absolute-volume Bluetooth setting, or a bass-heavy EQ making vocals feel recessed — not a hardware fault. Testing with a wired cable connection is the fastest way to check whether the headphones themselves are the source of the problem.
No. It resolves the issue for some Android users, but the one detailed Sony community report YallaBuy found described trying this fix without full success, so it isn't a guaranteed solution.
This matches the one detailed user report found for this article, though the underlying cause wasn't confirmed. Differences in how iOS and iPadOS handle Bluetooth media volume compared to Android could plausibly contribute, but YallaBuy could not verify a specific technical explanation for the iPad-specific pattern.
There's no confirmed, published Sony firmware release specifically addressing a volume defect on the WH-1000XM5 that YallaBuy could verify. Keeping firmware current is still good general practice, since Sony's own troubleshooting flow includes resetting and reinitializing the headset.
If you've tried the wired-cable test and the headphones are still noticeably quiet compared to other headphones at a similar volume setting, that's reasonable grounds to use your return window or contact Sony support, rather than assuming it will resolve itself.

Sources

A note on changing menus Prices, software menus, and app features referenced above can change with future updates; check the current Sony Headphones Connect app and your phone's settings for the exact wording and location of each option.