NUX C-7X4 Stereo Wireless In-Ear Monitor System - 1 Transmitter & 4 Receivers

Wireless Freedom For A Full Band - NUX C-7X4, 1 Transmitter, 4 Receivers, 5.8GHz.

The NUX C-7 Stereo Wireless In-Ear Monitor System easily transforms wired earphones into a wireless monitoring solution and is compatible with most in-ear monitor earphones. Operating on the 5.8GHz wireless frequency band, it delivers a more stable, low-interference wireless transmission experience. 

The C-7X4 packages the same one-transmitter, multi-receiver architecture as the standard C-7 into a ready-made band monitoring kit; one transmitter and four receivers in a single carry case, so the whole system arrives configured for synchronised multi-performer monitoring straight out of the box, rather than needing additional receivers sourced separately.

Auto And Manual Pairing Modes

The system supports both Auto and Manual pairing. Auto mode enables a quick 1-to-1 connection, while Manual mode supports one transmitter connected to multiple receivers across 10 channels.

In Auto mode, the system powers on and automatically connects while selecting the best available channel. When interference occurs, frequencies can be switched with a single press. Manual mode also supports channel scanning to find a more stable wireless channel.

High-Resolution Mini Display

A 0.87-inch high-resolution display gives a clear view of audio signal, battery level, pairing mode, EQ settings, and other system information at a glance.

Plug And Play

The transmitter supports 3.5mm or 1/4" stereo audio input, making it compatible with audio interfaces, mixers, live-streaming devices, and personal monitoring/mixing systems, with ultra-low latency of just 5.8ms. A guitar, amp modeller, or audio interface can be connected directly, turning the C-7 into a wireless silent-practice rig.

Button Lock Function

Double-clicking the power button locks the device, keeping the system stable and preventing accidental changes during a performance. Double-clicking again unlocks it.

5 Monitoring EQ Presets

In-ear monitoring can cause the occlusion effect, resulting in boosted low frequencies and a muffled sound. The C-7 features 5 built-in monitoring EQ presets that effectively reduce this issue, delivering a clearer and more natural monitoring experience.

Stereo And Mono Modes

Stereo mode suits stereo devices such as headphone output interfaces, while Mono mode is designed for Line Out or Aux Out connections from mixers and audio interfaces. Practising alone, Mono mode routes the full signal to a single channel for the cleanest, most detailed sound.

Battery Life And Charging Case

With up to 6 hours of battery life and a transmission range of up to 30 metres, performers can move freely while enjoying every dynamic detail. The C-7 comes with a dedicated charging case, allowing the transmitter and receiver to be stored and charged directly, activated with a simple button press. When fully charged, the case can recharge the entire wireless system approximately 2 times, providing a total runtime of over 18 hours.

3 Mounting Options

The receiver offers three mounting options; clip, lanyard, and magnetic attachment, providing flexible wearing and positioning for different use cases.

KEY FEATURES: NUX C-7X4

• 5.8GHz Wireless Frequency Band: Stable, low-interference transmission
• 30m Transmission Range
• High-Resolution Mini Display: 0.87", shows signal, battery, mode, and EQ
• Up To 6 Hours Battery Life Per Charge
• 3000mAh Charging Case: Recharges the system ~2 times, over 18 hours total runtime
• Stereo/Mono Input Modes
• 5 Monitoring EQ Presets: Reduces the in-ear occlusion effect
• Auto And Manual Pairing Modes: Manual mode supports 10 channels
• 1-To-Multiple Receiver Support: Ideal for synchronised band monitoring
• 24-Bit High-Resolution Audio
• Ultra-Low Latency: 5.8ms
• 96dB Dynamic Range
• Plug And Play: 1/8" or 1/4" stereo transmitter input
• Button Lock Function
• 3 Receiver Mounting Options: Clip, lanyard, magnetic attachment
• Supports 16–32Ω Earphones

NUX C-7X4 User Manual