C-7x4 5.8 GHz Wireless in-ear monitoring system (1 TX + 4 RX set)

The C-7x4 is a set consisting of 1 TX and 4 RX units based on the C-7 system, NUX’s 5.8 GHz wireless in-ear monitoring system.

It is designed to connect to mixers, audio interfaces, and multi-channel personal in-ear monitoring systems, allowing you to turn any earphone into a wireless monitor.

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Highlights

Make Your In-Ear Monitors Wireless

With up to 6 hours of battery life and a transmission range of up to 30 meters, performers can move freely while enjoying every dynamic detail.

Professional Stereo Wireless Sound

Stable and smooth stereo wireless transmission delivers a clear and natural high-fidelity monitoring experience. With a wide and immersive stereo soundstage, you can break free from cables and fully immerse yourself in the music.

Auto & Manual Pairing Modes

Supports both Auto and Manual pairing modes. Auto mode enables quick 1-to-1 connection, while Manual mode supports one transmitter connected to multiple receivers with 10 channels.

One-Touch Frequency Hopping & Smart Channel Selection

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

High-Resolution Mini Display

Equipped with a 0.87-inch high-resolution display for clear viewing of audio signal, battery level, pairing mode, EQ settings, and other system information.

Supports One Transmitter to Multiple Receivers

In Manual mode, one transmitter can connect to multiple receivers, making it ideal for band rehearsals, live streaming, interviews, and other multi-user monitoring scenarios.

Plug & Play

The transmitter supports 1/8″ 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 5.8 ms.

Connect a guitar, amp modeler, or audio interface directly, and the C-7 becomes a wireless silent-practice rig.

Button Lock Function

You can double-click the power button to lock the device, so you can stay focused on playing. After the device is locked, double-click the power button to unlock.

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 & Mono Modes

Stereo mode is suitable for stereo devices such as headphone output interfaces, while Mono mode is designed for Line Out or Aux Out connections from mixers and audio interfaces, meeting different usage scenarios.

Practicing on your own? Mono mode routes the full signal to a single channel for the cleanest,most detailed sound – plug in your guitar, amp modeler, or audio interface and hear every nuance ofyour playing at any hour, without disturbing anyone.

3 Mounting Options

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

Convenient carry case

The C-7X4 includes a carry case that accommodates 1 transmitter and 4 receivers.

Product details

Key features

A comprehensive set (1 TX + 4 RX) designed for In-ear monitor (IEM) earphones
Suitable for connection to mixers, audio interfaces, and multi-channel personal in-ear monitor systems, allowing you to turn any earphones into wireless monitors
Auto-connect mode: Automatically pairs and selects best channel
Manual connect mode: Supports one-to-many receivers
4 monitor EQ presets
Up to 6 sets can be used in the same space
Up to 30 meters wireless range (line-of-sight)
6 hours battery life
Includes a carry case that accommodates 1 transmitter and 4 receivers
Easily expandable by adding more C-7 Receivers