Equalizer on Xiaomi Redmi 9A: How to turn on and adjust the sound to yourself

Xiaomi Redmi Smartphone 9A It's equipped with speakers and an audio chip that can produce sound with acceptable quality, but the factory settings don't always match the individual preferences of the users. strengthen bass, improve mid-frequency or smooth out sharp high notes.However, many Redmi owners 9A This is a problem: in standard MIUI The equalizer may be hidden or unavailable in some applications.

In this article, we will discuss all ways to activate and configure the equalizer on Xiaomi Redmi. 9A — From built-in features to third-party solutions, you'll learn how to turn it on for music, video and calls, and which apps will help expand the audio customization experience. MIUI and the limitations of the budget model.

Before you start setting up, make sure your device has the latest firmware installed. In some updates, Xiaomi adds or removes equalizer features. Also check if No Sound or No Disturb mode is activated - they can block changes to audio settings.

Where to look for a built-in equalizer in MIUI on the Redmi 9A

In the firmware MIUI for Redmi 9A The equalizer can be hidden in different sections depending on the version of the system, and its main location is the settings of the sound in the Music app (a standard player from Xiaomi), but not all users know how to get there.

To find the built-in equalizer:

1. Open the Music app (Icon with Note).
2. Play any track you want.
3. Slap the gear icon (⚙️) in the upper right corner or swipe up from the bottom panel of the player.
4. Select the Equalizer or Sound Effects (the name may vary).

If you don't have that in your player, the equalizer is off at the system level, and then try an alternative way:

• 📱 Go to Settings. → Sound and vibration → Additional settings.
• 🔊 Look for the Equalizer or Audio Effects option here.
• 🎛️ On some versions MIUI 12/13 The equalizer is called Mi Sound Enhancer.

Activation of the equalizer through the engineering menu (for experienced users)

If standard methods fail, you can try to turn on the equalizer through the Engineering Mode, which requires caution, since incorrect changes can lead to malfunctions in the audio system.

Instructions for activation:

1. Open the Phone app and enter the combination: ##36446337###
2. You will be taken to Engineer Mode. Go to Hardware Testing → Audio.
3. So here you'll see a list of audio parameters. Look for items that say Equalizer or Sound Effect.
4. Activate the switch (if any) and save the settings.

⚠️ Warning: Changes to the engineering menu may reset after restarting the device. Do not edit settings that you do not know the purpose of - this can lead to loss of sound or microphone functions.

If the engineering menu is missing or not opening, your firmware is blocking access to it, and then there are two options:

• 🔄 Update MIUI before the latest version (the function may be available).
• 📱 Use third-party equalizer applications (we will talk about them further).

Make a backup copy of the data

Battery charge of at least 50%

Record the current sound settings (screen photo)

Don't interrupt the setup process-->

Third-party equalizer apps for Redmi 9A

When Xiaomi's built-in tools don't work, third-party tools come to the rescue, offering advanced audio settings, presets for different genres of music, and even support for external headphones.-3 Applications compatible with Redmi 9A.

1. Equalizer FX (free-to-purchase)

• 🎧 10-band equalizer with presets (rock, pop, jazz, etc.).
• 🔊 Support for bass boost and 3D-effects.
• 📱 Works with all media players through the overlay of a sound driver.

2. Music Volume EQ (share-free)

• 🎛️ 5-band equalizer with frequency visualization.
• 🔇 Automatic volume normalization between tracks.
• 📀 Integration with Spotify, YouTube Music and other services.

3. Wavelet (open source)

• 🎵 Adaptive equalizer with automatic correction for your headphones.
• 🔧 Support for custom presets and import/export settings.
• 🛠️ Minimum battery consumption.

Before installing a third-party equalizer, turn off the built-in sound effects in the settings MIUI, To avoid conflict, go to Settings. → Annexes → Application management → Music. → Permissions and disable access to microphone/speakers for a standard player.

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If after installing the equalizer sound became quieter or there were distortions, try calibrating the settings: set all sliders to a neutral position (0 dB) and gradually adjust them, starting with bass (+2...+4 dB) and high frequencies (-1...-3 dB).

Set up an equalizer for different use cases

There is no universal equalizer setting – the optimal settings depend on the music genre, the quality of the headphones and personal preferences.

1. For bass music (hip-hop, electronic music)

• 🎵 Increase sliders by 60Hz and 100Hz to +4...+6 dB.
• 🔊 Reduce the average frequencies (500 Hz — 1 kHz -2 dB.
• 🎧 If the headphones are weak, activate the Bass Boost option in the app.

2. For vocals and acoustics (pop, rock, jazz)

• 🎤 Lift sliders 250 Hz – 500 Hz (voice heat) and 2 kHz – 4 kHz (clearness).
• 🔇 Reduce low frequencies (60 Hz? -3 dB to avoid dirt in the sound.
• 🎵 Use Jazz or Vocal Preset in the App.

3.For classical music and soundtracks

• 🎻 Set all sliders in neutral position (0 dB).
• 🔊 Easily raise high frequencies (8 kHz – 16 kHz) by +1...+2 dB for air conditioning.
• 🎧 Turn off all effects (basic boost, 3D-sound) for natural sounding.

4. For podcasts and audiobooks

• 🎙️ Increase sliders by 500 Hz – 2 kHz (speech range).
• 🔇 Reduce low frequencies (60 Hz — 150 Hz? -4 dB.
• 📚 Activate Speech Enhancer (if available in the app).

⚠️ Attention: Excessive bass reinforcement (>+6 dB) or high frequencies (>+4 dB) can cause sound distortion and speaker overload, especially at maximum volume. 9A It also speeds up battery discharge.

Solving problems: The equalizer doesn't work or resets

Xiaomi Redmi Users 9A Often, we find that the equalizer settings do not save or apply to some applications.

1.Settings are reset after rebooting

• 🔄 Check if the Quick Boot mode is activated in the battery settings. It can reset background processes.
• 📱 Update the equalizer app to the latest version.
• 🔧 In the application settings, find the AutoStart option and turn it on.

2. The equalizer does not work on YouTube or Spotify

• 🎵 Make sure that in the sound settings MIUI All built-in effects are disabled.
• 🔊 In YouTube or Spotify, check the sound settings – there may be your equalizer.
• 📱 Reinstall the equalizer app with root rights (power users only).

3.The sound became quieter after adjusting the equaliser

• 🔇 Check if Safe Volume is activated in Settings → Sound.
• 🎛️ Make sure that none of the equalizer sliders are set to negative values (-6 dB).
• 🔊 Some apps (like Poweramp) have a separate volume control – check it out.

4.Equalizer conflicts with other sound applications

• 🛠️ Close all background players and audio apps through Recent Tasks.
• 🔧 In Android settings, turn off battery optimization for an equalizer app.
• 📱 Try another app (e.g. Wavelet instead of Equalizer) FX).

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If the equalizer stopped working after the upgrade MIUI, Try resetting it to factory settings (in the app menu) or reinstalling the program. Often this involves changing the audio drivers in the new firmware.

Optimizing sound for headphones and external speakers

Equalizer settings for built-in Redmi speakers 9A The speakers of the smartphone have a limited frequency range, while quality headphones are able to reproduce a wider range of.

For built-in speakers:

• 🔊 Don't increase the bass higher +3 dB – This will cause distortions.
• 🎵 Raise the average frequencies (1 kHz – 3 kHz) by +2 dB for better legibility.
• 🔇 Reduce high frequencies (8 kHz -1 dB to reduce hissing.

For wired headphones:

• 🎧 Check the impedance of the headphones (ohms). for Redmi 9A optimally 16-32 ohms.
• 🔊 Adjust the equalizer to the characteristics of the headphones (for example, for Bass-oriented models, reduce the low frequencies).
• 🎛️ Use presets of the application or create your profile.

For Bluetooth devices:

• 📶 Make sure that the codec is used. AAC or aptX (in Bluetooth settings).
• 🔊 In the equalizer, activate the Bluetooth Optimization option (if any).
• 🔋 Watch the charge of headphones – at a low level of the battery, the sound can be distorted.

To test the sound after setting, use tracks with a wide frequency range, for example:

• 🎵 "Bass Test by Digital Emotions (for low frequency testing).
• 🔊 "Sweep Test" by AudioCheck (checking all frequencies from 20 Hz to 20 kHz).
• 🎧 "Pink Noise" (for calibration of the total balance).

FAQ: Frequent questions about equalizer on Xiaomi Redmi 9A