How to connect a subwoofer to a Xiaomi TV: all ways with photos and tips

Why subwoofer improves sound on Xiaomi TV What to Know Before Connecting

Built-in speakers even in top-end Xiaomi TVs (Mi series) TV Q2, Redmi Smart TV X or Mi TV P1) They rarely do much good with deep bass, and subwoofer solves this problem by adding surround sound to movies, games and music, but before buying and connecting, it's important to consider three key things:

First, the type of connection depends on the subwoofer model and the available connectors on the TV. TV (post-release 2020 years) normally equipped HDMI ARC, optically S/PDIF Bluetooth 5.0. Budget models (e.g. Redmi) TV A Series can only be used in 3.5 mm AUX or RCA. Secondly, the power of the subwoofer should correspond to the size of the room: for a small bedroom enough 50–80 For the living room, it is better to choose a model for 100–150 Third, not all subwoofers support automatic shutdowns – some require manual power management.

If you have already purchased a subwoofer (for example, Xiaomi Mi). TV Soundbar with wireless subwoofer or third-party model like Edifier T5), It's all about connecting it right, and here's a look at all the different ways you can do it, from simple Bluetooth to advanced. HDMI eARC, and also tell you how to adjust the sound in the TV menu so that the bass sounds clear, without wheezing and delays.

Method 1: Connection through HDMI ARC/eARC — Best Option for Modern Xiaomi TV

Technology HDMI ARC (Audio Return Channel allows you to transmit sound from the TV to the soundbar or AV-The receiver is the same cable used to transmit the image, and the newer version, eARC, supports Dolby Atmos and the same formats. DTS:X, What is important for Xiaomi Mi models TV Q2 75" or Mi" TV Master Series: Advantages of this method:

• 🎵 Lossless digital sound – no noise or interference, as with analogue connection.
• 🔌 One cable instead of several makes space easier to organize.
• 🎛️ Control of one remote – the volume of the subwoofer is regulated by the buttons of the TV.

To connect the subwoofer through HDMI ARC/eARC, Follow the following steps:

1. Make sure your Xiaomi is yours. TV supportive ARC/eARC. Check this in the model specifications or in the menu: go to Settings → Sound. → Exit HDMI. If you're optional ARC Or eARC is available, so we can continue.
2. Connect the soundbar (or) AV-subwoofer receiver to port HDMI ARC This is usually a sign that says something like this.
3. Turn on the soundbar and put it in mode HDMI (On some models, this is done by the Source or Input button).
4. On the TV, select the sound source: Settings → Sound. → Sound output → HDMI ARC.

If the sound does not appear, check:

• 🔄 Update of TV firmware (in Settings) → On TV. → Updating the system).
• 🔊 Loudness on the soundbar - it should be above 0.
• 🔌 Cable HDMI — Use a certified High Speed HDMI eARC-enabled.

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If, after connecting the subwoofer through HDMI ARC If you lose sound from the built-in speakers, that's okay. To return sound to both devices, select Settings from the TV menu. → Sound. → Simultaneous audio output (if optional).

Method 2: Optical connection (TOSLINK) — securely

Optical cable TOSLINK It transmits digital audio without compression, making it an ideal choice for connecting a subwoofer to Xiaomi. TV, if HDMI ARC This method is supported by almost all models of Xiaomi TVs (except for the budget, for example, Redmi). TV A32). Main advantages:

• 🎧 High quality sound – no losses like analog connections.
• 🛡️ Interference protection – optical cable is not subject to electromagnetic tips.
• 🔄 Support for multichannel sound (5.1, 7.1) when connected to the AV-receiver.

The connection will require:

• 🔌 Optical cable TOSLINK (The length depends on the distance between the devices).
• 📺 Subwoofer or soundbar with optical input (commonly referred to as Optical) IN or DIGITAL IN).

Instructions for connection:

1. Turn off the TV and subwoofer.
2. Connect one end of the optical cable to the port S/PDIF OUT on the back of Xiaomi TV, And the other one is to the Optical entrance. IN subwoofer.
3. Turn on both devices.
4. On the TV, go to Settings. → Sound. → Output and select Digital (Optical).
5. On the subwoofer, select the source of the Optical signal (usually the Source or Input button).

Important nuance: optical output on Xiaomi TV It may not transmit audio from certain apps (such as Netflix or Disney).+) constraint HDCP. In this case, it will only help. HDMI ARC.

Method 3: Connecting via Bluetooth – simple but with a latency

Wireless subwoofer Bluetooth connectivity is convenient if you don’t want to lay cables.This is a good way to do it for Xiaomi models. TV Bluetooth 4.2 and higher (e.g. Mi) TV 4S, Mi TV Q1). However, he has two significant disadvantages:

• ⏱️ Sound delay (latency) – noticeable when watching movies or games.
• 🎵 Audio compression – sound quality is worse than wired connections.

To connect the subwoofer over Bluetooth:

1. Turn on the subwoofer pairing mode (usually hold the Pair or Bluetooth button until the indicator blinks).
2. On the TV, go to Settings → Devices → Bluetooth.
3. Select your subwoofer from the list of available devices.
4. Confirm the conjugation (if required) PIN-code, usually 0000 or 1234).

If the sound is interrupted or lagged behind the image:

• 📶 Check the distance between the devices – it should not exceed 10 meters.
• 🔄 Reboot the TV and subwoofer.
• 🔊 In the sound settings TV Choose Bluetooth audio → Low latency (if option is available).

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Bluetooth is for music, but not for movies. HDMI ARC optics to avoid sound and video dissynchronization.

Method 4: Analog connection via RCA 3.5 mm AUX — old-model

If you're Xiaomi. TV supportive HDMI ARC or Optical (e.g. Mi) TV 3S or Redmi TV 4), the analog connection remains through RCA («tulips) or 3.5 mm AUX. This method is simple, but has limitations:

• 🔊 The sound quality is lower than that of digital connections (interference is possible).
• 🎛️ No multi-channel sound support (only stereo).
• 🔌 Additional cables can create confusion.

To connect through RCA:

1. Buy a 3.5mm cable. → 2x RCA (if TV only AUX) or RCA-RCA (if there are "tulips»).
2. Connect one end to the exit. AUX OUT or RCA OUT on the TV, the other to the entrance AUX IN or RCA IN subwoofer.
3. On the TV, select the sound source: Settings → Sound. → Sound output → Analog.

For connection in 3.5 mm AUX:

1. Use a standard audio cable of 3.5 mm - 3.5 mm.
2. Connect one end to the exit. HEADPHONE OUT or AUX OUT on TV, another AUX IN subwoofer.
3. In the TV menu, turn off sound processing: Settings → Sound. → Effects. → Off (this will reduce the delay).

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If you hear background noise on analog, try using a shielded cable or connecting a subwoofer through an amplifier, and check if the cable is near the interference sources (router, microwave).

Method 5: Connecting through USB — rare-but-possible

Some subwoofers (e.g. Xiaomi Mi) TV Soundbar supports connectivity USB, But it doesn't work on all Xiaomi TVs. USB-port TV It is designed to play media files or connect peripherals (keyboard, mouse), not to output sound. TV 4 Pro may be used USB-audio adapter.

This will require:

• 🔌 USB-audio card (e.g., on a chip) CM108) 3.5 mm outlet.
• 📺 Supported TV USB-Audio (tested experimentally).

Instructions:

1. Connect. USB-port-card USB TV-wise.
2. Connect the output of 3.5 mm on the adapter with the input on the subwoofer.
3. In the TV menu, select the sound source: Settings → Sound. → Sound output → USB-Audio (if the option is available).

⚠️ Note: Most Xiaomi TVs do not support audio output through the USB. This method only works on individual firmware and may require manual inclusion in the engineering menu. USB-Audio is not available in the settings, the method will not work.

Customization of sound on Xiaomi TV subwoofer

Even after successfully connecting the subwoofer, the sound may be unbalanced: too loud bass, wheezing, or not loud enough. To correct this, follow the following settings:

1. Selecting a Sound Source: Go to Settings → Sound. → Sound output. Select the appropriate connector (HDMI ARC, Optical, Bluetooth, etc.).
2. Equalizer Adjustment: In the Menu Settings → Sound. → Equator reduce the medium and high frequencies to make the bass sound clearer. For movies, choose Preset Cinema, for music, Bass.
3. Setting up sound delay (relevant for Bluetooth): In Settings → Sound. → Synchronize the sound and select the delay value (start with 100ms and adjust).

If the subwoofer emits wheezing or distortion:

• 🔊 Turn down the volume on the subwoofer and increase the volume on the TV.
• 🔌 Check the quality of the cables (especially if you use them) RCA or AUX).
• 🔄 Update the TV firmware (in Settings) → On TV. → Updating the system).

Frequent Mistakes and How to Avoid Them

When connecting a subwoofer to Xiaomi TV Users often face typical problems.-5 errors and ways of solving them:

1. Use of the wrong HDMI-Port: Many connect the soundbar to the usual HDMI-entries HDMI ARC. Check the port signature on the back of the TV.
2. Incompatible sound formats: If the subwoofer does not support Dolby Digital, on the menu TV choose PCM auto.
3. App Blocking: Some services (e.g. Netflix) can block audio output to external devices. Try to turn on the movie in another app (e.g. YouTube).
4. Improper polarity of cables: When connected via RCA The red plug should go into the red connector, the white plug into the white connector, and the entangled channels will distort the sound.
5. No power on subwoofer: Some active subwoofers have a separate switch on the back. Make sure it's on.

⚠️ Note: If you connect the subwoofer through HDMI ARC If the sound is periodically lost, the problem may be in the power saving mode of the TV. → Energy conservation.

Critical detail: on Xiaomi TVs with firmware MIUI TV Update 3.0 may not have support HDMI eARC. In this case, to transmit object sound (Dolby Atmos) you will have to use optics or update the software.

FAQ: Answers to popular questions