EQP5 Passive Equalizer Kit – DIYRE - DIY Recording Equipment
Channel: Audio Builders Workshop
Date: 2017-08-29

Audio Builders Workshop will be unboxing kits and DIY audio parts, and tools from Collective Cases, DIY.RE, Microphone-Part, JLM Audio, Hairball, Expat Audio, Bumblebee DIY Pro Audio, Austin Microphones, Audibility Recording, GKL gKit Baby / ORA, Vintage Microphone PCB Kit, Sparkos Lab, Geistnote and many more! 

Elements is built on the classic single op-amp, transformer coupled microphone preamplifier circuit found in many classic console designs. A discrete op-amp in the standard 2520 footprint provides variable gain, while the input and output transformers perform a wide range of functions including circuit isolation, impedance matching, additional step up gain, and in some cases much of the tonal color.

The EQP5 is a premium tone-shaping EQ based on the prized Pultec EQP filter circuitry. 

The World's Most Musical Filters. The EQP5 employs the passive filter circuitry made famous by Pultec's legendary EQP series of equalizers. Decades after their introduction, these EQ's remain coveted for their uniquely musical and natural behavior.

Modern Clarity or Vintage Tone. Choose between a clean and modern or vintage and colored output stage. If both outputs are installed, you can switch between them with a solderless jumper on the board.

The Modern (stock) output is a clean, robust, balanced output for excellent noise performance. Choose this output to use the EQP5 for transparent, natural tone-shaping.

The Vintage (optional) output employs a DOA (discrete opamp) and custom transformer for a livelier dynamic character. The vintage output gives signals a more visceral, forward feeling that helps them translate clearly in a mix while requiring less level to do so. The solid-state Pultecs, the sound of which many engineers claim to be sweeter than that of the earlier tube units, use the same DOA/transformer output scheme.

Designed for DIY. The EQP5 was designed from the ground-up to be a satisfying DIY project. Our photo manual will guide you through every step of the assembly. And the circuit board contains extra capacitor and inductor footprints for customizing the frequency bands.