The DPR-404 is a 4 channel compressor with high frequency de-essing.

Each channel includes:

• Threshold control
• Below threshold metering
• Ratio control
• A gain reduction meter
• A clip LED
• Gain control
• Linking
• High frequency de-esser.

Attack and release time constants are automatically and continually regulated by dynamic and harmonic content of program material.

The unit features electronically balanced inputs and outputs.