High-performance, Jensen transformer-coupled microphone preamp

The 32Cpre+ takes the high-performance, Jensen JT-MB-CPCA transformer-coupled microphone preamp from the 32Classic studio console, combines it with the renowned Harrison LP/HP filters and delivers it for the first time in 500 Series format. Inspired by the iconic Harrison 3232, the 32Classic mixing console and preamp is an American icon reimagined, delivering the tone that helped create some of the most iconic albums of the 70s’ and 80s’. Thanks to the 32Cpre+, that Harrison sound is now available in 500 series format.

Tools for tracking

The 32Cpre+ delivers +20 to +70 dB of smooth gain capable of driving a wide range of mic types, including ribbon. In addition to 180 ° Phase, 48V, -20 pad, and HiZ impedance switches, the front panel features combo XLR with ¼” jack connector that lets you plug a microphone or instrument into the 32Cpre+ directly without having to access the rear panel of the 500 Series rack.

Legendary Harrison filters

A Harrison mic pre wouldn’t be complete without our legendary filters. As found in the original 3232 and latest 32Classic console, the filters have a musical 12dB/octave slope, with the High Pass Filter featuring a characterful 3 dB resonant peak. The High Pass Filter range is 25 Hz – 3.1 KHz, and the Low Pass Filter is 160 Hz – 20 KHz.


  • The sound of Harrison.
  • Jensen JT-MB-CPCA transformer-coupled mic-pre.
  • +20 to +70 dB of gain.
  • HP and LP Filters with characterful 3 dB resonant peak.
  • Front-mounted combo XLR with ¼” jack connector.
  • 48V phantom power switch.
  • Polarity reverse switch.
  • HiZ impedance switch.
  • Input overload LED.
  • Compatible with 500 Series format chassis.

The Harrison tone 

The 32Cpre+ delivers the warm, rich tone that Harrison is renowned for. Full low-end, open mid-range, and super-smooth, natural highs are what to expect from this Jensen JT-MB-CPCA transformer-coupled mic-pre. The gentle roll-off at each end of the frequency spectrum and delicate phase shift created by the 1:1 ratio transformer produces a mic pre that sounds so sweet you’ll use it on any source material.

Harrison 500 Series Overview

Legacy in analog 

Harrison consoles have helped create some of the most highly regarded and influential music in history. Michael Jackson, ABBA, Led Zeppelin, Queen, Donald Fagan, and many more iconic artists have relied on Harrison production tools to help create their multi-platinum albums. The latest range of 500 series modules from Harrison harnesses the sound and features that engineers like Bruce Swedien, Roger Nichols, and Reinhold Mack trusted to make music that stands the test of time.

User Guide

Harrison 32Cpre+ 500 Series Module User Guide