Empirical Labs PUMP DUO

The Empirical Labs Pump 500 Series Compressor delivers precision compression in a compact, single-channel 500 Series format. This compressor offers dynamic versatility, with front-panel controls for Attack, Release, Input trim, Output gain, and a unique AtMod (Attack Modification) knob for fine-tuning transients. It also features Ratio and Bypass buttons, a Saturation mode for added harmonic richness, and LED indicators for monitoring ratio and gain reduction. A 110Hz high-pass filter (HPF) in the detector path, coupled with soft-clipping functionality, makes it perfect for professional studio and live audio setups.

• Type: 500 Series VCA Compressor

• Channels: 1

• Controls: Input, Output, Ratio, Attack, Release, AtMod (transient shaping)

• Attack Range: 200 microseconds to 50 milliseconds

• Release Range: 50 to 600 milliseconds with Opto-style auto-release

• Ratios: 2:1, 3:1, 4:1, 6:1, 8:1, 10:1, 12:1, 20:1

• Frequency Response: 5Hz to 175kHz

• Dynamic Range: 125dB (0.5% THD with germanium diode soft clipping)

• Noise Floor: -101dBu at 0 Output

• Detector High-Pass Filter: 110Hz

• Power Requirements: ±16.5V DC, 100mA

• Bypass: Dedicated Bypass switch

• Module Slot Size: Single-slot 500 Series module