Whether you're using classic iPhone headphones or AirPods, you may find it incredibly frustrating when they don't play as loudly as you want them to. If you want to make your headphones louder on the iPhone, you can try several different approaches. Most of these involve settings on the iPhone that you might not have considered adjusting before, and you can also change the volume on individual songs using iTunes.
How to Make Headphones Louder
The simplest way to make your iPhone headphones or AirPods louder is to use the volume control on your iPhone. The easiest way to control volume is to press the "Volume Up" button on the side of your iPhone while music is playing. When you press "Volume Up" button, volume controls appear on the screen, and you can adjust the sound to your preference. If you don't have music playing, pressing the "Volume Up" button adjusts the volume of the ringer instead. In this case, the best approach is to swipe upward on the screen (or downward on the newer iPhones) to bring up the Control Center, where you can directly adjust the volume even without anything playing.
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Change iPhone Volume Limit
If the basic approach for how to make headphones louder for iPhone doesn't work well enough for you, try an alternative approach. IPhones have an option to set a volume limit for music, and if this is active and set low, it makes your headphones quieter. Go to "Settings" and then "Music." Look for "Volume Limit" under the "Playback" header. If this option is on, click on it to go to another page that has a "Max Volume" slider. Increase this to the maximum to make your headphones loud.
Late Night EQ Setting
Another seldom-used iPhone setting that can make your headphones or AirPods louder is the "EQ" section of the Music settings. Go to "Settings" and then "Music." In the "Playback" section, click "EQ," and you can make your selection from there. While several options can increase your volume, the most widely recommended for a mixture of louder volume and high quality is the "Late Night" setting.
Song Volume on Individual Songs
Every song in your iTunes library has an associated playback volume. While this is intended for a specific song that plays too loudly or too quietly, you can use this setting to increase the volume of any of the songs in your library. Go to iTunes and find a song you want to adjust. When it starts to play, use the slider under the album art and play controls to increase the volume and make your iPhone headphones louder. The only downside to this approach is that doing it for your whole library is time-consuming.