The CX4004 is a professional 4-in/4-out DSP audio processor designed for advanced audio processing, automatic mixing, matrix routing, and sound system optimization. It provides four balanced analog inputs and four balanced analog outputs, supporting both microphone and line-level sources, making it suitable for conference rooms, meeting spaces, classrooms, commercial AV systems, and professional sound reinforcement applications. The processor uses a 32-bit floating-point 400MHz DSP with 24-bit digital conversion and 48kHz sampling, providing precise and reliable audio processing. It incorporates a comprehensive set of functions including AFC, AEC, ANC, AGC, automatic mixing, matrix mixing, PEQ, noise gate, crossover, compressor, limiter, delay, and FIR filtering, allowing the connected sound system to be precisely tuned for different applications. Each input supports 48V phantom power and a microphone preamplifier with adjustable gain from 0–40dB in 1dB steps, allowing the processor to work with a variety of professional microphones. The maximum input and output level is 17dBu, providing suitable headroom for professional line-level audio systems.

Specification	Details
Model	CX4004
Type	4 in 4 out DSP Audio Processor
Input Channels	4 Balanced Inputs
Output Channels	4 Balanced Outputs
DSP Processing	32-bit Floating Point DSP
Sampling Rate	48kHz
AD/DA Conversion	24-bit
Phantom Power	+48V DC per Channel