Last updated: August 31, 2026
Applies to: Heavys H1H headphones
Estimated time: 5–10 minutes
Quick Answer
If your H1H headphones sound too quiet, update their firmware and check the volume settings on your phone and music app. Volume-limiting features such as Spotify’s Audio Normalization, Apple Music’s Sound Check, and the iPhone’s Headphone Safety settings can affect playback volume.
How to Troubleshoot Low Volume
1. Update the H1H Firmware
Use the HEAVYS App to check for and install the latest firmware. Keep the headphones connected and the app open until the update is complete.
2. Check the Connected Device’s Volume
If you are using the AUX cable while the headphones are powered off, volume is controlled by the connected device. Increase the volume directly on your phone, computer, or audio player.
Increase the volume gradually to protect your hearing.
3. Turn Off Audio Normalization in Spotify
If you use Spotify, disable Audio Normalization and test the volume again.
4. Turn Off Sound Check in Apple Music
If you use Apple Music, disable Sound Check and play the same track again.
5. Check Headphone Safety on iPhone
On your iPhone, go to:
Settings → Sounds & Haptics → Headphone Safety
Check whether a setting is limiting the headphone volume.
6. Check Absolute Volume on Android
Check whether Android’s Absolute Volume feature is affecting playback. The location and availability of this setting may vary depending on your phone manufacturer and Android version.
7. Test Another App and Device
Play audio through:
- A different music or audio app
- A different phone, tablet, or computer
If the volume improves, the issue may be related to the original app or device settings.
Frequently Asked Questions
Why is the volume lower when using the AUX cable?
When your H1H headphones are powered off and connected through AUX, the connected device controls the volume. Increase the volume on that device.
Why do some songs sound quieter than others?
Music apps may apply volume-normalization settings, and recordings can have different volume levels. Test the same track with normalization disabled and in another app.
What should I do if the volume is low on only one device?
Review that device’s volume-limiting and headphone-safety settings. You can also test another app to determine whether the problem is specific to the device or app.
Still Need Help?
If the volume remains low across multiple apps and devices, email support@heavys.com and include:
- Your phone or device model
- The connection type: Bluetooth or AUX
- The apps you tested
- Whether both sides are equally quiet
- Your current H1H firmware version, if available