Xiaomi Mi Amplifier Pro: how to connect the amplifier to the TV, speakers and other devices

Why Xiaomi Mi Amplifier Pro is needed and what it can do

The Xiaomi Mi Amplifier Pro is a compact device that converts a standard audio signal into a powerful output for speakers or headphones. Its main goal is to improve the sound quality of a home audio system, TV or computer without having to buy expensive Hi-Fi equipment. With this gadget, you can connect passive speakers to a TV without audio output, amplify the sound of a smartphone for a party or even create a multi-channel system for a theater at home.

Unlike its budget counterparts, the Mi Amplifier Pro supports Bluetooth 5.0, optical and coaxial inputs, and has a built-in DAC for pure sound. But to unlock the full potential of the device, it needs to be properly plugged in and configured. In this article, we'll look at all possible connectivity patterns, from simple smartphone connectivity to integration into a complex audio system.

Before you start setting up, make sure you have everything you need:

• 🔌 Xiaomi Mi Amplifier Pro amplifier itself (cables are included in the kit) RCA-RCA 3.5 mm — RCA).
• 🔊 Passive columns with resistance from 4 ohms to 8 ohms (active columns do not need to be connected!).
• 📺 Sound source: TV, computer, smartphone or other gadget.
• 🔋 Power supply 12V/2A (comes complete).

Connection to TV: 3 working circuits

Xiaomi (and most other brands) TVs often have a weak built-in speaker. Mi Amplifier Pro will help bring sound to external speakers. The choice of circuitry depends on the available connectors on your TV.

Figure 1: 3.5 mm in (AUX) or RCA

The easiest way is to use an analog output. On the back of the TV, find a connector. AUDIO OUT (usually marked with green or signature HEADPHONE). Connect it to the amplifier with a 3.5mm cable — RCA (comes complete).

If only there's TV on the show RCA (Tulips, use the cable RCA-RCA:

• 🔴 Red plug - right channel.
• ⚪ White plug - left channel.

Scheme. 2: Through the optical output (S/PDIF)

For digital audio, without loss of quality, use an optical cable. On the TV, find a connector. OPTICAL OUT (A square socket with a red light, connect it to the port. OPTICAL IN On the amplifier. In the settings of the TV, select:

Settings → Sound → Digital Audio Output → PCM (or Auto)

Important: If the sound is not going, check if the optical output is not silenced by a protective plug (it often remains after buying a TV).

Scheme 3: Through HDMI ARC (modern-day television)

If your TV is supported HDMI ARC (Audio Return Channel can be used to output sound through the audio channel HDMI-That's what the port is for:

1. Connect the amplifier to the TV through HDMI ARC-port (usually marked with an inscription) ARC).
2. In the settings of the TV, activate HDMI CEC and ARC:
3. Choose. HDMI ARC sound-produce.

Connected cable to the correct connector (AUX/RCA/OPTICAL/HDMI)

The TV settings have chosen the right sound source

The amplifier is on the network (blue indicator burns)

Volume on TV and amplifier is on display 30-50%-->

Please note: when connecting through HDMI ARC The amplifier may not transmit sound from external devices (e.g., consoles or Blu-ray players) if they are connected to other devices. HDMI-In this case, use an optical output.

2. Connect to a smartphone, tablet or computer

You can use the amp not only with the TV, but with any other device, and let's look at the basics.

From a smartphone or tablet

There are two ways:

1. By wire: use the cable 3.5 mm — RCA (If there is an audio output in the smartphone or an adapter USB-C/Lightning → 3.5 mm.
2. Bluetooth: Turn on the amplifier mode BT (press the button MODE before flashing the blue indicator, then find the Mi Amplifier Pro device in the Bluetooth list on the phone.

For better Bluetooth sound quality, use a codec AAC or aptX (if supported).

Computer from computer (Windows/macOS/Linux)

On the PC, the amplifier can be connected:

• 🖥️ After 3.5 mm (green connector on the sound card).
• 🔌 Through USB (If the amplifier supports USB-audio, but Mi Amplifier Pro does not know how to do this, you need an additional DAC).
• 📡 Bluetooth (similar to connecting with a smartphone).

On Windows, you may need to select an amplifier as a sound output device:

Control Panel → Sound → Playback device → Mi Amplifier Pro

For the TV.

For a computer or laptop

For a smartphone/tablet

For the music system

Another option-->

3. Sound tuning: how to achieve better quality

Just connecting is not enough, you need to set the amp and the sound source correctly.

Balance and volume

On the front panel of the amplifier there are two regulators:

• 🔊 Volume - Total volume.
• ⚖️ Balance – Balance between left and right channel.

We recommend setting the volume on the amplifier on 50-70%, And adjust the rest to a source (TV or smartphone) that will reduce noise.

Equalizer and sound effects

If your sound source (such as a TV or smartphone) supports equalizer settings, use the following presets:

Tip: If the sound is too metallic, try turning off all effects on the source (like Dolby Atmos or Surround) – they may conflict with the amplifier processing.

💡

To check the quality of the connection, play back a test signal (for example, pink noise or frequency swipe) to help identify distortion or imbalance of channels.

4. Common problems and their solution

Even with the right connection, there can be difficulties. Let's look at the most common ones.

No sound.

Check it out.

• 🔌 Is the power supply connected (the indicator on the amplifier should burn blue).
• 🔊 Is the correct source on the amplifier selected (button) MODE).
• 📵 Is the sound off at the source (TV, smartphone).
• 🔄 Restart the amplifier (turn off power for 10 seconds).

The sound is interrupted or distorted

Causes and solutions:

• 📶 Bluetooth: the device is too far from the amplifier (maximum 10 meters without obstacles).
• 🔌 Wire connection: cable damaged or contacts oxidized (try another cable).
• 🔋 Power supply: power supply is not powerful enough (needed) 12V/2A).

Noise and background hum

This is a common problem with analog connections.

• 🔌 Disconnect other devices from the same outlet (may be a tip-off).
• 📵 Reduce the volume at the source and increase the amplifier.
• 🔄 Use an optical cable instead of 3.5 mm RCA.

5. Advanced settings: multi-channel sound and smart home integration

If you want to create a full-fledged audio system, the Mi Amplifier Pro can be used as part of a more complex scheme.

Subwoofer connection

The amplifier has a separate output. SUB OUT Connect it to the active subwoofer with a cable. RCA-RCA. In the amplifier settings (if supported), select the cut frequency for the subwoofer - usually 80-120 Hz.

Multi-channel sound (2.1, 5.1)

For system 2.1:

• Connect two columns to the exits FRONT L/R.
• Subwoofer to SUB OUT.

5.1 requires a second amplifier or AV-Receiver as Mi Amplifier Pro does not support multi-channel audio directly.

Control via Mi Home or voice

The amplifier does not officially support Mi Home, but it can be integrated into a smart home through:

• 🔌 Bluetooth relay: for example, Xiaomi Smart Plug with power management.
• 🎤 Voice assistants: via Google Assistant or Alice with the socket-on command.

💡

For multichannel sound, it is better to use optical or coaxial inputs – they transmit an uncompressed signal without loss of quality.

6. Comparison with analogues: is it worth buying Mi Amplifier Pro

There are many amplifiers on the market, but the Xiaomi Mi Amplifier Pro stands out for its price-performance ratio.

The advantages of Mi Amplifier Pro:

• 💰 The lowest price among amplifiers with optical input.
• 🔌 Universality – suitable for TV, PC, smartphones.
• 🎧 A good DAC for your class.

Cons:

• 🔊 Lack of power for large speakers (8 ohms and above).
• 🔄 No remote control (control only buttons).

If you need an amplifier for a small room or TV connection, the Mi Amplifier Pro is a great choice. For audiophiles or larger rooms, you should consider Fosi Audio or Topping.

7.Safety and care: how to extend the life of an amplifier

To make the device last a long time, follow these recommendations:

• 🔥 Overheating: Do not place the amplifier in closed niches or near heat sources.°C - 35°S.
• 🌧️ Humidity: Avoid high-humidity areas (bathroom, kitchen above stove).
• ⚡ Power: only use the original power supply. Cheap analogues can knock the device out of order.
• 🧹 Cleaning: once in a while 3-6 Clean the case for months with a dry cloth. Use compressed air for connectors.

⚠️ Warning: if the amplifier begins to emit the smell of burning or the body heats up to a temperature above 50°C, immediately disconnect it from the network and contact the service.

If you do not use it for a long time (more than a month), disconnect the amplifier from the network - this will prolong the service life of the capacitors.

FAQ: Answers to Frequent Questions