DIY Pro Audio

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Published : 10-Dec-2014
Author: artur.fisher
Category: DIY Pro Audio
Comments: 7

D1 Transformer Coupled Active DI Prototype

Today I've assembled the first prototype of a Transformer Coupled Active DI that will be available as a kit soon. It is a simple, yet very good sounding classical design with a j-fet input stage chosen for its virtually unlimited input impedance (the input impedance of the device is set to 10Mohms) and a bipolar buffer/transformer driver. The transformer is my own original design developed and made particularly for this Active DI project...

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DIY Pro Audio

D1 Transformer Coupled Active DI Prototype