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Beogram 4002 RIAA

BeoGram 400X

A dual-stage active RIAA design based on the classic LM833 topology, but implemented with the OPA2134. The goal was low noise, stable performance, and clean audio reproduction without unnecessary complexity. The board is fully SMD, compact, and designed for practical integration with the same form factor as the original.

Below are images of the PCB, and you can find the schematics — and even contribute — by following the GitHub link above.