The Empirical Labs PUMP is a compact 500 Series compressor with all the clever attitude, control, and musicality you would expect from the makers of the Distressor, Arousor, and Mike-E.

Originally imagined back in 2014, PUMP brings serious ELI heritage into a single-channel module designed for everyday studio use. It is fast, flexible, and full of character, making it a natural choice for vocals, drums, bass, guitars, synths, and anything that needs a bit more shape, punch, or control.

The front panel gives you an input level control with clip indicator, 8 selectable compression ratios from 2:1 to 20:1, and digitally stepped Attack and Release controls for easy recall. The release section also includes a soft opto-style mode for smoother, more relaxed compression.

A switchable 110 Hz high-pass filter helps keep low-end energy from driving the detector too hard, while the AtMod function slows the initial attack response to let more transient detail through. The result is a compressor that can tighten, lift, grab, and enhance without flattening the life out of the source.

Main Features:

* Single-channel 500 Series compressor
* Designed by Empirical Labs
* Shares sonic DNA with the Distressor, Arousor, and Mike-E
* 8 selectable compression ratios from 2:1 to 20:1
* Each ratio has its own unique compression curve
* Digitally stepped Attack control for easy recall
* Digitally stepped Release control for easy recall
* Soft opto-coupler style Release mode
* Input Level control with clip “BAD” indicator
* Switchable 110 Hz high-pass filter
* Gain reduction metering
* Attack Modification, or AtMod, for preserving transient impact
* Bypass function for dry signal comparison
* Compact, flexible, characterful dynamics control for professional studio use

Serial no: #1370

We ship worldwide, feel free to ask for a precise shipping quote.

Price shown in EU includes 24% VAT unless you have entered your valid EU VAT number to your Reverb account. VAT can be deducted if you have a company with a valid EU VAT number or if you’re based outside of EU. Non-EU buyer pays any import duties and tax as regulated by their local customs.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

Listed9 hours ago
ConditionVery Good (Used)
Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more
Brand
Model
  • Pump 500-Series Compressor Module
Categories
Format
  • Modular
Electronics
  • Analog
  • Solid State
Number of Analog Outputs
  • 1
Number of Analog Inputs
  • 1
Number of Channels
  • 1

Product safety information may be available here.

Retrosonic Pro Audio

Tallinn, Estonia
Joined Reverb:2016

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Promoted similar listings













Product reviews

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Oops, looks like you forgot something. Please check the fields highlighted in red.