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DIY For Audio
DIY R-2R dual-mono DAC project - Soekris dam1021 Rev 4 (0.012% resistor version)
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<blockquote data-quote="gavinbirss" data-source="post: 692328" data-attributes="member: 60"><p>The RAW outputs have a output impedance of around 625 ohms (ideal) and do not have the opamp/buffer and no I/V is needed. No output cap also.</p><p></p><p>Rev 4 uses a less than ideal opamp/buffer combo as the preferred IC's are discontinued.</p><p></p><p>There is only a 3 dB increase in signal-to-noise ratio on the balanced outputs of a single board compared to single ended. </p><p></p><p>Some prefer the RAW output, although the buffered output can drive headphones. With dual boards, balanced, the RAW outputs is what I want.</p><p></p><p>For comparison purposes note when using RAW single ended, single board balanced and dual-board RAW balanced.</p></blockquote><p></p>
[QUOTE="gavinbirss, post: 692328, member: 60"] The RAW outputs have a output impedance of around 625 ohms (ideal) and do not have the opamp/buffer and no I/V is needed. No output cap also. Rev 4 uses a less than ideal opamp/buffer combo as the preferred IC's are discontinued. There is only a 3 dB increase in signal-to-noise ratio on the balanced outputs of a single board compared to single ended. Some prefer the RAW output, although the buffered output can drive headphones. With dual boards, balanced, the RAW outputs is what I want. For comparison purposes note when using RAW single ended, single board balanced and dual-board RAW balanced. [/QUOTE]
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DIY & Tutorials
DIY For Audio
DIY R-2R dual-mono DAC project - Soekris dam1021 Rev 4 (0.012% resistor version)
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