Empirical Labs Pump

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Empirical Labs Pump

Empirical Labs

Pump

4.8 Expert Rating

Product Info

Article Number: 574823
Model: Pump
Price: $988.90

* Prices may vary. Check retailer for current pricing and availability.

The Pump is a seriously impressive compressor – it’s got a unique flavor thanks to that saturation circuit and the Attack Modification really lets you sculpt the dynamics. It’s a great choice for engineers looking for a flexible, character-driven compressor for tracking or mixing drums, vocals, or anything needing a bit of punch and glue.

Product Description

  • Empirical Labs Pump
  • Compressor for 500-Series API format
  • Adjustable input level with clip LED
  • 8 Selectable compression ratios (2: 1 to 20:1)
  • Adjustable attack time (200us bis 40ms)
  • Adjustable release time (50ms to 500ms) with selectable Opto setting
  • Switchable 110Hz sidechain highpas-filter and saturation soft-clipper
  • Gain reduction meter with 13 LEDs
  • Adjustable Attack Modification changes the attack response and transient processing
  • Adjustable output level
  • Bypass switch
  • Frequency range: 5Hz - 175kHz
  • Dynamic range: 125dB
  • Max. input/output level: +22dBm / +28.5dBm
PROS
  • • Exceptional transient shaping with the Attack Modification control.
  • • The Opto release provides smooth, musical compression.
  • • Robust build quality with Empirical Labs’ signature reliability.
  • • Versatile saturation adds warmth and subtle harmonic richness.
CONS
  • • Can be complex to dial in quickly for beginners.
  • • The 500 format limits expandability without more slots.
  • • Price point puts it out of reach for budget-conscious users.

Product Video

Key Features

Module Type Compressor
Channels Stereo
Controls Input Level, Ratio, Attack, Release, Attack Modification, Output Level, Saturation
Compatible Format 500 Series API
Weight 2.3 lbs

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Frequently Asked Questions

The Pump’s saturation is more subtle and musical, designed to add warmth rather than aggressive distortion, unlike the more pronounced character of the Distro 2.
It takes some experimentation, but it’s a powerful tool for taming harsh transients without overly squashing the signal – think of it as a way to gently shape the attack.
The API 2500 is a workhorse, but the Pump offers a unique sonic signature and the Attack Modification feature provides a different level of dynamic control.

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