The DIYRE EQP5 and the HRK EQ550P are the passive Pultec inspired equalizers. This page compares the main features and highlights the difference between both units. This page should be treated as the guide for the website visitors and the FAQ section.
The DIYRE CP5 and the MP568C are the colour mic preamps. This page compares the main features and highlights the difference between both units.
Short comparison between the LTL Chroma and the MPQ568C.
Short Article about the difference between LTL Pentode COlour Module and the Soviet Pentode Colour Module
The Noisy 500 Racks with Switched Mode PSU
On this page, I will list the noisiest and worst 500 Racks… The influx of cheap, low quality 500 racks is a real problem for everybody. More and more manufacturers want to cash in on growing popularity of the 500 Standard. They are throwing the cheapest Switched Mode PSU hoping that no one will realize the scam!
As a manufacturer of the 500 Modules, I’m tired of being blamed for the somebody else greediness… I get more and more emails reporting all sort of noise issues which are caused by the PSU in the cheap 500 rack. This is a list of the biggest offenders on the market with some noise samples which I have gathered from my customers. Read More->
The list of User Manuals for HRK products.