The Sony WH-CH520 is a popular choice for people who want wireless headphones that deliver good sound and comfort without a high price. But even with their out-of-the-box performance, many users wonder: can you make them sound even better? The answer is yes. By changing a few settings, updating software, and understanding how sound works, you can get a richer, clearer audio experience. This guide will show you practical ways to improve sound quality on your Sony WH-CH520, whether you listen to music, watch movies, or take calls.
Understanding The Basics Of Sound Quality
Before making changes, it’s important to understand what sound quality means. It’s not just about loudness. Sound quality includes clarity, bass, treble, balance, and absence of unwanted noise. Many factors affect how your WH-CH520 sounds, such as your audio source, wireless connection, and even how you wear the headphones.
The WH-CH520 uses Bluetooth 5.2, which brings better stability and efficiency than older versions. The headphones support the SBC and AAC audio codecs, which affect how data is sent from your device to the headphones. While these are not the highest-end codecs, with the right settings, you can still enjoy excellent audio.
Optimize Your Audio Source
The quality of what you play is the foundation. If your music or video file is low quality, even the best headphones cannot fix it.
Use High-quality Audio Files
- Choose higher bitrates: Audio files (MP3, AAC, etc.) Come in different bitrates. A bitrate of 256 kbps or higher is recommended for clear sound.
- Try lossless formats: If your device supports it, formats like FLAC or ALAC offer even better quality than standard MP3 or AAC.
- Streaming services: Services like Spotify, Apple Music, and Tidal allow you to select streaming quality. Always choose the highest option your subscription allows.
Play From A Reliable Device
Different devices have different Bluetooth chips and audio processing. A recent smartphone, tablet, or computer will likely provide better sound than an old one. Make sure your device supports AAC codec for best results, as the WH-CH520 is optimized for it.
Adjust Headphone Fit And Placement
How you wear your Sony WH-CH520 affects what you hear. A poor fit can lead to less bass and unclear sound.
- Position the earcups: Make sure the earcups cover your ears completely and sit comfortably.
- Adjust the headband: The headband should not be too loose or too tight. A snug fit improves sound isolation and keeps sound from leaking out or in.
- Check for obstructions: Remove earrings, hats, or glasses that might block the earcups.
Tip: Take a few seconds to adjust your headphones every time you put them on. Even small changes can make a big difference.
Tweak Equalizer Settings
One of the best ways to improve sound quality is by using an equalizer (EQ). This lets you adjust bass, mid, and treble frequencies to match your taste.
Using The Sony Headphones Connect App
Sony’s official Headphones Connect app (available for Android and iOS) lets you control the WH-CH520’s sound profile. Here’s how:
- Download and install the app from the App Store or Google Play.
- Pair your headphones with your device.
- Open the app and select your WH-CH520.
- Tap on the “Sound” section and access the Equalizer.
The app includes presets like Bright, Excited, Mellow, and Relaxed, but you can also create your own.
Custom Eq Settings For Different Genres
Depending on what you listen to, you can tweak the EQ to get the best results:
- Pop and Rock: Increase bass and treble slightly for a lively sound.
- Classical and Jazz: Boost mids for clearer vocals and instruments.
- Hip-Hop and EDM: Raise the bass for deeper beats.
Here’s a simple example of how EQ settings can affect the sound:
| Genre | Bass | Mid | Treble |
|---|---|---|---|
| Pop/Rock | +2 | 0 | +2 |
| Classical | 0 | +2 | +1 |
| Hip-Hop/EDM | +3 | 0 | +1 |
These are just starting points. Experiment to find what you like best.
Update Firmware And Software
Sony regularly releases firmware updates for its headphones to improve performance and fix bugs. Using old firmware can hurt sound quality or cause connection issues.
- How to update: Connect your WH-CH520 to the Headphones Connect app. If an update is available, follow the instructions in the app.
- Why update? Firmware updates can fix audio glitches, improve battery life, and sometimes even improve Bluetooth stability.
Insider tip: Some users forget to update their app itself, which can prevent firmware updates from working. Always keep both your app and headphones up to date.
Improve Bluetooth Connection Quality
Bluetooth is convenient, but it can sometimes cause dropouts or reduced sound quality.
Minimize Wireless Interference
- Keep devices close: The WH-CH520 works best within 10 meters (33 feet) of your device.
- Avoid obstacles: Walls, metal objects, and other electronics can block or weaken the signal.
- Stay away from Wi-Fi routers: Wi-Fi and Bluetooth use similar frequencies. If possible, move away from routers or other Bluetooth devices.
Choose The Right Audio Codec
Your headphones support SBC and AAC. For iPhone and most iPads, AAC is standard and offers better sound. Android devices sometimes default to SBC, which is lower quality. In your Bluetooth settings, make sure AAC is selected if possible.
| Codec | Supported Devices | Sound Quality | Latency |
|---|---|---|---|
| SBC | All | Basic | Medium |
| AAC | iOS/Some Android | Better | Low |
Pro insight: Some Android phones hide codec options in developer settings. Search “Bluetooth audio codec” in your phone’s settings to unlock more options.

Maintain And Clean Your Headphones
Dirt, sweat, and oil can affect both comfort and sound.
- Wipe earcups regularly: Use a soft, dry cloth. Avoid water or harsh chemicals.
- Check for debris: Dust or lint can block speaker grilles.
- Store in a case: When not using, keep your WH-CH520 in a pouch or case to protect it.
Over time, earcup padding can wear out. If you notice a change in fit or sound, consider replacing the pads.
Use The Right Music And Audio Apps
Not all apps treat sound the same way. Some compress audio more than others or don’t support higher-quality streaming.
- Try different apps: Compare Spotify, Apple Music, Amazon Music, and YouTube Music. Some have better sound settings.
- Enable “high quality” mode: In your app’s settings, look for “high quality,” “very high,” or “lossless” options.
Hidden detail: Some apps lower quality by default on mobile data to save bandwidth. Always check settings after installing or updating.
Troubleshoot Common Sound Problems
Even after making changes, you might face issues like distortion, low volume, or unbalanced audio.
What To Do If Sound Is Distorted
- Lower the volume: Too high volume can cause distortion, especially with low-quality files.
- Restart your device and headphones: Simple, but often works.
- Reset the headphones: Hold the power button for 7 seconds to reset.
If Volume Seems Too Low
- Check app volume and device volume: Some devices have separate controls for Bluetooth volume and media volume.
- Disable volume limiters: Some phones have safety features that cap max volume. Adjust in settings if needed.
For Unbalanced Sound
- Check balance settings: Some devices allow you to adjust left/right audio balance.
- Test with different apps or files: The problem may be with the recording, not your headphones.
Comparing Sony Wh-ch520 With Similar Headphones
How does the WH-CH520 stack up against other models in its price range? Here’s a quick comparison.
| Feature | Sony WH-CH520 | JBL Tune 510BT | Anker Soundcore Life Q10 |
|---|---|---|---|
| Battery Life | Up to 50 hrs | Up to 40 hrs | Up to 60 hrs |
| Bluetooth Version | 5.2 | 5.0 | 5.0 |
| Supported Codecs | SBC, AAC | SBC | SBC, AAC |
| App Support | Yes | No | No |
| Weight | 147g | 160g | 260g |
The WH-CH520 stands out for its long battery life, lightweight design, and customization options via the Sony app.
Two Non-obvious Tips For Better Sound
- Pair With One Device at a Time: The WH-CH520 can remember multiple devices, but pairing with only one device during listening reduces connection conflicts and possible quality drops.
- Use Wired Connection (If Possible): The WH-CH520 is primarily wireless, but if you have access to a Bluetooth transmitter with a higher-quality codec, use it for even better sound. Some advanced users connect through a PC USB Bluetooth dongle that supports AAC for more stable audio.
Frequently Asked Questions
How Do I Reset My Sony Wh-ch520 Headphones?
Hold the power button for about 7 seconds until the indicator light flashes blue and red. This will reset the headphones and clear previous Bluetooth pairings.
Why Is The Sound On My Wh-ch520 Lower Than Expected?
Check both the headphone volume and your device volume. Some devices have safety limits on Bluetooth audio. You can raise these limits in the settings. Also, make sure your audio files or streaming apps are set to high quality.
Does The Wh-ch520 Support Noise Cancellation?
No, the Sony WH-CH520 does not have active noise cancellation. It offers passive noise isolation thanks to its on-ear design, but it won’t block out as much noise as models with active cancellation.
Can I Use The Sony Headphones Connect App With The Wh-ch520?
Yes, the Headphones Connect app works with the WH-CH520. It allows you to customize the EQ, update firmware, and adjust other settings to improve sound quality.
How Can I Tell If My Headphones Are Using The Aac Codec?
On iPhones and iPads, the WH-CH520 automatically uses AAC. For Android, check your phone’s Bluetooth settings or developer options. If you want more details, Sony provides official codec support information on their website. For more on codecs, visit the Bluetooth profile page.
Getting the best sound from your Sony WH-CH520 headphones is not just about the hardware. It’s about using good-quality audio, adjusting the right settings, and taking care of your device. With a few changes and a little attention, your music and calls can sound much better every day.
Experiment, explore the app, and keep your headphones in good condition—your ears will notice the difference.