1. Introducció
The 1Mii B75 Mini Bluetooth 5.4 Stereo Amplifier is a compact yet powerful audio device designed to enhance your home audio experience. It delivers up to 100W (50W x 2) of output power, capable of driving most household passive speakers. With multiple input options including Bluetooth, USB, AUX, and Optical, it offers versatile connectivity for various audio sources.


2. Què hi ha a la caixa
Si us plau, comproveu el contingut del paquet per assegurar-vos que hi hagi tots els elements:
- B75 Amplificador × 1
- 24V/3A Power Supply ×1
- Cable USB × 1
- 3.5mm Cable ×1
- Cable òptic × 1

3. Guia de configuració
Follow these steps to set up your 1Mii B75 ampmés viu:
3.1 Connexió d'alimentació
- Connect the provided 24V/3A power supply to the DC 9V-24V input port on the rear of the B75 ampmés viu.
- Connecteu la font d'alimentació a una presa de corrent.

3.2 Connexió dels altaveus
Connecteu els vostres altaveus passius al amplifier using speaker cables. The B75 is recommended for 4~8 ohm speakers and is not suitable for subwoofers or active speakers.
- Identify the positive (+) and negative (-) terminals on your speakers and on the B75 ampmés viu.
- Connect the positive terminal of the left speaker to the 'L+' terminal on the amplifier and the negative terminal to the 'L-' terminal.
- Repeat for the right speaker, connecting to the 'R+' and 'R-' terminals.

3.3 Vinculació Bluetooth
- Enceneu la B75 amplifier using the ON/OFF switch. The indicator light will flash red and blue alternately, indicating it's in pairing mode.
- Activate Bluetooth on your mobile phone or other audio device.
- Cerca "B75" in the list of available devices and select it to pair.
- Once paired, the B75 indicator light will remain blue.

3.4 Wired Connections (AUX/USB/Optical)
El B75 amplifier supports multiple wired input options. Wired mode takes precedence over Bluetooth mode. When a wired connection is active, Bluetooth will be disconnected.
AUX/USB Input:
- Connect your audio source device (e.g., PC, CD player) to the B75 via the provided 3.5mm AUX cable or USB cable.
- When using the AUX input, the B75 indicator light will turn green. For USB input, the light will turn red.
Entrada òptica:
- Connect your audio source device (e.g., TV) to the B75 via the provided Optical cable.
- When using the Optical input, the B75 indicator light will turn orange.
- Important for TV Optical: Set the SOUND OUTPUT of your TV SOUND SETTINGS to "External Speaker" or "Optical Out", and set the DIGITAL AUDIO FORMAT to PCM (or Stereo).

4. Instruccions de funcionament
Once connected, you can operate your 1Mii B75 ampmés viu:
- Encès/apagat: Use the ON/OFF switch on the front panel.
- Control de volum: Rotate the large knob on the top of the amplifier to adjust the volume. Turn clockwise to increase volume, counter-clockwise to decrease.
- Selecció d'entrada: El amplifier automatically prioritizes wired inputs (AUX, USB, Optical) over Bluetooth. To switch between wired inputs, disconnect the current wired source and connect the desired one. To use Bluetooth, ensure no wired sources are connected.
Guia de l'usuari Vídeo
5. Especificacions
| Característica | Detall |
|---|---|
| Dimensions del producte | 2.99 x 2.81 x 1.56 polzades |
| Pes de l'article | 3.53 unces |
| Número de model | B75 |
| Fabricant | 1 Mii |
| Voltage | 24 Volts |
| Volum de subministrament màximtage | 24 Volts |
| Subministrament mínim Voltage | 9 Volts |
6. Solució De Problemes
If you encounter issues with your 1Mii B75 amplifier, please review els següents punts comuns:
- Sense so: Assegureu-vos el amplifier is powered on, speakers are correctly connected, and the volume is turned up. Check that the correct input source is selected (wired connection takes precedence over Bluetooth).
- Problemes de vinculació de Bluetooth: Assegureu-vos que el amplifier is in pairing mode (flashing red and blue light). Ensure Bluetooth is enabled on your device and that you are within range. Disconnect any existing wired connections.
- Optical Input No Sound (from TV): Verify that your TV's audio output settings are configured to "External Speaker" or "Optical Out", and the digital audio format is set to PCM (or Stereo).
- So distorsionat: Check speaker impedance (recommended 4~8 ohm). Ensure speaker cables are securely connected and not frayed. Reduce volume if distortion occurs at high levels.
- Compatibilitat: Això amplifier is not suitable for subwoofers or active speakers. It is designed for passive speakers only.
7. Manteniment
To ensure the longevity and optimal performance of your 1Mii B75 amplificador, seguiu aquestes pautes de manteniment:
- Neteja: Utilitzeu un drap suau i sec per netejar l'exterior amplifier. Avoid using liquid cleaners or abrasive materials.
- Col·locació: Col·loca el amplifier in a well-ventilated area to prevent overheating. Avoid direct sunlight, heat sources, and excessive moisture.
- Manipulació: Manipuleu el dispositiu amb cura. Eviteu deixar-lo caure ni sotmetre'l a impactes forts.
- Emmagatzematge: Si emmagatzema el amplifier for an extended period, disconnect it from the power supply and store it in a cool, dry place.
8. Garantia i Suport
Per obtenir informació sobre la garantia i assistència tècnica, consulteu la pàgina oficial d'1Mii. weblloc web o contacteu directament amb el servei d'atenció al client. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
You can visit the 1Mii Store for more information: 1Mii Official Store





