NUX

5.8GHz Stereo Wireless In-ear Monitor System, 4 Receivers

Brand: NUX
Model: C-7X4
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The C-7X4 Stereo Wireless In-Ear Monitor System transforms wired in-ear monitors into a wireless monitoring solution and is compatible with most in-ear monitor earphones.
Operating on the 5.8GHz wireless frequency band, it delivers stable, low-interference wireless transmission. A built-in display provides clear information on channel selection, battery level, and system status.

Wireless

5.8GHz ISM frequency band (5.725–5.85GHz)

Transmission power: <25mW EIRP

Range: up to 30m

Latency: 7.5ms

Audio

24-bit audio

Dynamic range: 96dB

THD+Noise: <0.4% @ 1kHz

Transmitter

Input impedance: 3.7kΩ

Maximum input level: 2.7Vrms

Receiver (X4)

Recommended headphone impedance: 16–32Ω

Maximum output power: 57mW RMS

Battery

Operating time: Approximately 6 hours

Charging time: Approximately 3 hours

Battery capacities:

Transmitter: 750mAh

Receiver: 500mAh

Charging case: 3000mAh

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About This Product

Description:

Perfect for Rehearsal, Live Performance & Streaming
The C-7 Stereo Wireless In-Ear Monitor System transforms wired in-ear monitors into a wireless monitoring solution and is compatible with most in-ear monitor earphones.
Operating on the 5.8GHz wireless frequency band, it delivers stable, low-interference wireless transmission. A built-in display provides clear information on channel selection, battery level, and system status.

The C-7 supports both Auto and Manual pairing modes, including one transmitter connected to multiple receivers for synchronized monitoring, making it ideal for rehearsals, live performances, and streaming.
 

Key Features

  • 5.8GHz wireless frequency
  • Up to 30m transmission range
  • HD display
  • Up to 6 hours battery life
  • 3000mAh charging case
  • Over 18 hours total runtime
  • Stereo and Mono operation
  • Five preset monitoring EQs
  • Auto and Manual pairing modes
  • One transmitter supports multiple receivers
     

Professional Stereo Wireless Sound
Stable stereo wireless transmission provides clear, natural high-fidelity monitoring with a wide stereo soundstage, allowing performers to move freely without cables.
 

The C-7 offers two operating modes:

  • Auto Mode: Quick one-to-one pairing.
  • Manual Mode: One transmitter can connect to multiple receivers across 10 selectable channels.

One-Touch Frequency Hopping & Smart Channel Selection
Auto Mode automatically selects the best available wireless channel at startup. If interference occurs, a single button press switches to a cleaner frequency.
Manual Mode includes channel scanning to locate the most stable wireless channel.


A 0.87-inch high-resolution screen clearly displays:

  • Audio signal status
  • Battery level
  • Pairing mode
  • EQ setting
     

System information:

  • One Transmitter, Multiple Receivers
  • Manual Mode allows a single transmitter to connect with multiple receivers, making it well suited for:
  • Band rehearsals
  • Live streaming
  • Interviews
  • Multi-user monitoring applications
  • Plug & Play Connectivity
  • The transmitter accepts both:
  • 1/8" (3.5mm) stereo input
  • 1/4" (6.35mm) stereo input
     

Compatible with:

  • Audio interfaces
  • Mixers
  • Live streaming equipment
  • Personal monitoring and mixing systems

Button Lock:
After one minute of inactivity, controls automatically lock to prevent accidental operation.
Double-press the power button to unlock.


Five Monitoring EQ Presets:
The C-7 includes five built-in monitoring EQ presets designed to reduce the occlusion effect often experienced with in-ear monitors, resulting in a clearer and more natural monitoring sound.

Stereo & Mono Modes:

  • Stereo Mode: Designed for stereo headphone outputs.
  • Mono Mode: Optimized for Line Out or Aux Out connections from mixers and audio interfaces.

Wireless Freedom:

  • Up to 6 hours battery life per charge
  • Up to 30 meters operating range
  • Allows performers to move freely while maintaining consistent monitoring quality.
  • 3000mAh Charging Case
  • The included charging case stores and recharges both the transmitter and receiver.

Features include:

  • One-button charging
  • Approximately two full recharges of the wireless system
  • More than 18 hours of total operating time
  • The C-7X4 version includes a carry case capable of holding one transmitter and four receivers.

Three Mounting Options:

  • The receiver can be worn using:
  • Belt clip
  • Neck lanyard
  • Magnetic attachment

Available Models:

C-7

  • 1 transmitter
  • 1 receiver
  • Charging case
  • Suitable for individual stereo monitoring with the option to add additional receivers.
  • 1 transmitter


C-7X4

  • 4 receivers
  • Carry case
  • Designed for up to four users and expandable with additional receivers.

Compatible with the C-7 transmitter for expanding one-to-multiple receiver systems or serving as a spare receiver.

Specifications
  • Division
  • Erikson Music
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