Empirical Labs PUMP Model EL-P-DUO

Empirical Labs PUMP

The PUMP is a fully analog single-channel compressor that shares family DNA with the legendary Distressor compressor, along with select features from the Arousor compressor plugin and the Mike-e microphone preamp. The PUMP offers eight compression ratios from 2:1 to 20:1 (each with an optimized curve), digitally stepped Attack and Release controls, a Detector high-pass filter, soft-saturation clipping, and comprehensive gain-reduction metering.

The PUMP also boasts the unique Attack Modification or AtMod control originally introduced in the Arousor plugin and unavailable on any other hardware compressor. AtMod enables users to shape transient response beyond simply adjusting the Attack control, allowing more transients to pass for greater impact—such as adding a bit more snap to snares or thump to basses

Specifications EL-P

• Frequency Response – 5 Hz to 175 kHz (-3dB points).
• Dynamic Range – 125 dB from maximum output (.5%THD soft clipping) to minimum output. Noise floor with Output on 0 is typically – 101dBu.
• Distortion – between .0035% and 15% at 1KHz, depending on mode and settings.
• I/O – Maximum Input before hard clipping – +22dBm, “ Line In” mode. Maximum Output (Mix at 0) – +28.5dBm
• Impedance – 120k Ohm, Instrument In Mode, output impedance is less than 75 ohms.  20K input impedance in balanced Line in mode.
• Compressor Time Constants – Attack: 200µs to 40ms. Release: 50ms to 500ms, plus Opto setting. Stereo Linkable for stereo tracks.
• Detector HP Filter – Switchable, fixed at 110Hz
• Attack Modification (AtMod) – Slows the initial onset of the attack envelope allowing more transient back into the track.
• Saturation Soft Clipper – based on the same circuit found in the Mike-E CompSat section.