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Yamaha NX-B55 - User Manual

Yamaha NX-B55
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BLUETOOTH SPEAKER SYSTEM
SYSTEME D’ENCEINTES BLUETOOTH
NX-B55
OWNER’S MANUAL
MODE D’EMPLOI
MANUAL DE INSTRUCCIONES
ULV

Questions and Answers

  • A
    Amanda BlankenshipSep 5, 2025
    Why does my Yamaha Speaker System sound distorted?
    • X
      Xavier HuberSep 5, 2025
      The most likely cause is that the volume is set too high. Try lowering the volume on the connected device to see if that resolves the distortion.
  • M
    Mary NelsonNov 26, 2025
    What to do if there is no sound or interrupted sound during Yamaha NX-B55 Speakers playback?
    • M
      Michael ClineNov 27, 2025
      If you're experiencing no sound or interrupted sound during playback with your Yamaha speakers, here are some things to check: * Make sure the other device is connected to the unit via Bluetooth. * Ensure the distance between the unit and the Bluetooth device is within 10 m (33 ft). * Move the unit away from devices that output signals in the 2.4 GHz frequency band, such as microwave ovens or wireless LANs. * Verify that the Bluetooth function of the other device is enabled and properly set. * Make sure the unit is registered on the other device’s Bluetooth device list; if not, perform the pairing operations again. * Confirm that the other device is set to send Bluetooth audio signals to the unit. * Ensure the pairing setting of the other device is set to this unit. * Incr...
  • W
    walkermaxwellSep 18, 2025
    Why is there still sound from the TV when Yamaha Speakers are connected?
    • C
      Chad GuerraSep 18, 2025
      If you're still hearing sound from the TV even after connecting your Yamaha speakers with an audio cable, the TV is not suitably set. Change the settings of the TV.
  • B
    Brenda AliSep 16, 2025
    Why does the sound from my Yamaha Speakers keep muting automatically?
    • T
      Teresa HoffmanSep 16, 2025
      If your Yamaha speakers are automatically muting, it is likely due to the auto-standby function. To resolve this, increase the volume level of the connected device, or press the power button twice to turn the unit back on.
  • J
    Jason MillsSep 14, 2025
    Why is my Yamaha NX-B55 sound distorted?
    • J
      Jessica GonzalesSep 14, 2025
      Sound distortion from your Yamaha speakers often occurs when the sound is too loud. Try lowering the volume of the connected device.
  • C
    camerondeniseSep 12, 2025
    Why does Yamaha Speaker System auto-power on not work?
    • L
      Louis LarsenSep 12, 2025
      The volume of the connected device might be too low, so increase its volume level. Also, the unit may not turn on if the sound duration is too short, such as a click.
  • K
    Karen CunninghamSep 12, 2025
    Why is auto-standby not working on my Yamaha Speaker System?
    • S
      Samantha MillerSep 12, 2025
      The AUTO STANDBY switch may be set to OFF. Set the AUTO STANDBY switch to ON. Also, make sure the unit is not close to mobile phones, radio devices, microwaves, or inverter lights, as external noise can interfere with the function.
  • Y
    yjacksonSep 9, 2025
    Why is the sound muted automatically on my Yamaha Speaker System?
    • P
      pgonzalezSep 9, 2025
      This is likely due to the auto-standby function. Try increasing the volume level of the connected device. Alternatively, press the power button twice to turn the unit back on.
  • J
    Joshua BakerSep 7, 2025
    How to fix noise heard on Yamaha Speaker System?
    • J
      John GuerreroSep 7, 2025
      Check the connections to ensure they are secure and not faulty. Clean the stereo mini jack and stereo mini plug cable if they are dirty. Ensure devices emitting electromagnetic waves (like mobile phones or microwaves) are not near the unit. Try connecting the AC adapter directly to the wall outlet to change the power supply source.
  • R
    rbrandtAug 20, 2025
    Why is there no sound coming from my Yamaha Speakers, or why is the sound very quiet?
    • S
      Sarah PowellAug 21, 2025
      There could be several reasons for this issue: * The unit and the other device might not be correctly connected, so ensure they are properly connected. * The connections could be faulty or incomplete; double-check that all connections are secure, or try reconnecting the unit to the Bluetooth device. * The unit's volume might be set too low; adjust the VOL (volume) control to increase the volume. * The connected device's volume might be too quiet; increase the volume on that device. * Headphones might be connected, which mutes the speakers; disconnect the headphones. * The AUTO STANDBY switch at the rear might be set to INIT; set it to ON or OFF.

Summary

Important Safety Instructions

Operating Precautions

Auto Standby Function

Activating Auto Standby Mode

Explains how the unit automatically enters standby mode when no audio signal is received.

Deactivating Auto Standby Mode

Provides methods to disable auto-standby mode, either by volume adjustment or switch setting.

Connections

Wired External Device Connection

Details connecting external devices via the 3.5mm stereo mini plug cable.

Wireless Bluetooth Connection

Guides on establishing a wireless connection using Bluetooth technology.

Bluetooth Music Playback

Pairing and Registration

Explains the process to register Bluetooth devices for wireless music playback.

Bluetooth Music Playback (Playback and Disconnection)

Playing Music via Bluetooth

Guides on how to play music wirelessly after a Bluetooth connection is established.

Bluetooth Music Playback (Switching and Clearing)

Clearing Pairing Data

Provides steps to delete all previously paired Bluetooth devices.

Troubleshooting

General Issues and Solutions

Addresses common problems like unit not turning on, no sound, or distorted sound.

Troubleshooting (Bluetooth)

Bluetooth Pairing and Connection Issues

Solves problems with pairing, connecting, or maintaining Bluetooth connections.

Troubleshooting (Playback Issues)

No Sound or Interrupted Playback

Addresses issues with missing sound, interrupted playback, or device recognition.

Status Indicator Guide

Product Specifications

Yamaha NX-B55 Specifications

General IconGeneral
Product colorBlack, Titanium
Volume controlRotary
Housing material-
Recommended usageUniversal
Suitable for outdoor useNo
Speaker type1-way
Driver diameter70 mm
Number of drivers1
Speaker placementTabletop/bookshelf
Audio output channels2.0 channels
Impedance6 Ω
Frequency range- Hz
RMS rated power14 W
Total Harmonic Distortion (THD)10 %
BluetoothYes
Bluetooth range10 m
Bluetooth version2.1+EDR
Headphone connectivity3.5 mm
Connectivity technologyWired & Wireless
AC input voltage100 - 240 V
DC input voltage12 V
Power source typeAC
AC input frequency50 - 60 Hz
AC adapter output current1.5 A
Power consumption (typical)13 W
Cables includedAudio (3.5mm)
Weight and Dimensions IconWeight and Dimensions
Depth184 mm
Width83 mm
Weight2100 g

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