On this page you will find information about my Handmade Recording Equipment.
My DIY projects include: Discrete Transistor Preamplifiers, Tube Microphone Preamps, Audio Transformers, Vintage Preamp Circuits, Inductor Based Equalizers and more…
Thank you for looking!
Racking Neumann V 472 Preamplifiers Modules
Neumann is well known name in the world of professional studio recording equipment. V72 is probably the most famous preamplifier made by this manufacturer.
V472 is transistor based microphone preamplifier. Each module contains two independent channels with the gain up to 40dB. Inputs and outputs are transformer coupled.
Neumann V472 can be found on eBay or from other online retailers. Usually modules comes without power supply and without input or output connectors. This means that preamps are useless.
This article presents racking solution which converts V472 modules in to the very valuable studio equipment.
The CS2848 is unique recording / mastering completely discrete transistor channel strip with transformer coupled inputs and outputs, inductor based EQ and classic opto-compressor. The design features fully discrete signal path - no Integrated Circuit is used.
This is my new design based on the MP2148 transistor discrete circuitry.
CS2848 has improved output stage. I have added new improved output transformer driver which reduce low frequency distortions
The preamplifier section and EQ section uses DOPA'48 single ended input discrete Opeartional Amplifiers.
MP2148 is a classic transistor dual channel microphone preamplifier inspired by vintage transistor recording equipment. Each channel has low noise transformer coupled microphone preamp, transformer line input and high impedance instrument input.
I have always wanted to build completely discrete transistor preamplifier. I do believe that it is possible to build transistor preamlplifier which will outperform IC's based designs in terms of parameters and sound quality. Looks like MP2148 proves that!
The idea was to keep the character of classic transistor preamps, but achieve better sound quality and fidelity compared to vintage preamps.