AUDIO-GD R29 Discrete DAC R2R / Preamplifier / Headphone Amplifier Silver

Audio-GD R-29: A high-quality digital circuit

The R29's digital circuitry uses high-quality components, specially selected and assembled to optimise the interpretation and decoding of the audio stream. These include a TCXO clock, an Altera FPGA logic circuit and a proprietary Xilinx FIFO on-chip input circuit for all digital inputs.

In this configuration, the FPGA can perform precise re-locking of the clock signal via the FIFO circuit, based on the internal clock rate, which further facilitates clock noise rejection and corrects digital imperfections accumulated from the audio source.

This digital circuit not only provides high-quality digital filtering, but also incorporates an oversampling function (x2 / x4 / x8) and two NOS modes (true NOS with 6dB analogue filtering). The entire system can be configured by the user to suit their listening preferences and the specific characteristics of their audio installation.