Numark C3USB 5-Channel Rack DJ Mixer with USB I/O

Numark C3USB 5-Channel Rack DJ Mixer with USB Interface

The Numark C3USB is a professional 5-channel rackmount DJ mixer designed for mobile DJs, installations, clubs, and event setups that require extensive connectivity and flexible audio routing. It builds on the classic C-series mixer design and adds integrated USB audio functionality for seamless computer integration and recording.

Multi-Channel Mixing for Complex DJ Setups

The C3USB features five fully independent mixing channels, making it suitable for multi-source DJ environments where multiple decks, media players, or audio inputs are used simultaneously. Each channel includes dedicated level control and EQ for precise sound shaping.

• 5-channel rackmount DJ mixer architecture
• Independent level control per channel
• Designed for complex multi-source setups

Extensive Audio Connectivity

One of the strongest features of the C3USB is its extremely wide range of input and output options, allowing virtually any DJ or audio equipment to be connected.

• Multiple line inputs for CD players, media players, and laptops
• Dedicated phono inputs for turntables
• Microphone inputs with EQ control
• Master, record, and zone outputs for flexible routing
• Balanced XLR outputs for professional sound systems

This connectivity makes it suitable for venues that require flexible routing, such as events, installations, and mobile DJ rigs.

Dual USB Audio Interface

The C3USB includes two USB ports, each of which can be assigned as either an audio input or output. This allows seamless integration with computers for playback and recording.

• USB input for playing audio from a laptop
• USB output for recording DJ sets directly to a computer
• Plug-and-play USB operation (no drivers required)

This makes it easy to incorporate digital DJ software into traditional hardware-based setups. :contentReference[oaicite:0]{index=0}

Professional 3-Band EQ on Every Channel

Each channel on the C3USB is equipped with a 3-band EQ (high, mid, low), allowing detailed tone shaping and frequency control for smooth transitions and clean mixing.

• High-frequency control for brightness and clarity
• Mid-frequency control for vocal and instrument shaping
• Low-frequency control for bass management

The EQ system is designed to provide precise control over each audio source for professional mixing performance.

DJ Performance Controls

The mixer includes a range of performance-oriented features that support live DJ workflows and smooth transitions during sets.

• Replaceable and assignable crossfader
• Split and blend cueing options
• PFL (Pre-Fader Listen) monitoring with level metering
• Gain adjustment per channel

Microphone Channel with EQ

A dedicated microphone channel with EQ allows clear voice control for announcements, MC use, or live vocal input. This is especially useful for mobile DJs and event applications where speech clarity is important.

Rackmount Design for Professional Installations

The C3USB is built in a 19-inch rackmount chassis, making it suitable for permanent installations and professional DJ booths. Its durable design ensures stability and long-term reliability in demanding environments.

Ideal Applications

• Mobile DJ setups and event production
• Club and bar installations
• Multi-source audio environments
• DJ studios and practice setups
• Live recording and broadcast setups

Key Features

• 5-channel professional rack DJ mixer
• Dual USB interface for input and output audio routing
• Extensive phono, line, and microphone inputs
• Balanced XLR and multiple output options
• 3-band EQ on each channel
• Replaceable assignable crossfader
• Gain control and PFL monitoring system
• No-driver USB plug-and-play operation

Conclusion

The Numark C3USB is a highly flexible professional DJ mixer designed for complex setups that require multiple audio sources and computer integration. With its extensive connectivity, USB recording capability, and robust 5-channel design, it serves as a reliable solution for mobile DJs, installations, and performance environments where versatility is essential.