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DIY For Audio
Rotel cdp with tube output stage
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<blockquote data-quote="Ampdog" data-source="post: 55292" data-attributes="member: 144"><p>Not sure why one would want a tube output stage at all ......</p><p></p><p>You speak of warmth; one must be careful here. That is often as a result of audible 2nd harmonic distortion! Fine, one may like it, down again to subjective preference, which I guess I should not criticise. I had a look at the shematic quoted here but the component valus are almost too small to read - but as far as I could ... sorry to say but there will be audible 2nd harmonic distortion from those triodes. (All of which can also be 'supplied' by an appropriately designed semiconductor output stage without the rigmarole of having to supply an extra 6,3V and h.t. supply.)</p><p></p><p>Part of the preference though might lie in the sometimes poor op-amp output stages found in DAC/CD machines. I have never dabbled in that myself, but have read enough comment from people capable of judging, about such output stages and how they were effectively replaced.</p><p></p><p>Edit: Spelling</p></blockquote><p></p>
[QUOTE="Ampdog, post: 55292, member: 144"] Not sure why one would want a tube output stage at all ...... You speak of warmth; one must be careful here. That is often as a result of audible 2nd harmonic distortion! Fine, one may like it, down again to subjective preference, which I guess I should not criticise. I had a look at the shematic quoted here but the component valus are almost too small to read - but as far as I could ... sorry to say but there will be audible 2nd harmonic distortion from those triodes. (All of which can also be 'supplied' by an appropriately designed semiconductor output stage without the rigmarole of having to supply an extra 6,3V and h.t. supply.) Part of the preference though might lie in the sometimes poor op-amp output stages found in DAC/CD machines. I have never dabbled in that myself, but have read enough comment from people capable of judging, about such output stages and how they were effectively replaced. Edit: Spelling [/QUOTE]
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Rotel cdp with tube output stage
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