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Tube phono preamps
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<blockquote data-quote="handsome" data-source="post: 634659" data-attributes="member: 772"><p>Thank you sir. Come to think of it though, you are quite right to raise an eyebrow at the brilliant test results that i have consistently seen especially on the tube variety.....but perhaps those are feedback designs....... Feedback is but one way and the additional stability cannot be ignored - but at the end of the day you needs gobs of gain - not always so easy with our glass bottles. The fact that the amount of feedback will vary across the spectrum due to the RIAA characteristic and especially with our valves' vastly lower open loop gain, bothers me slightly. Thus feedback is notionally ideal for the solid state crowd......but as ever its that engineering challenge...and individual choice.....</p></blockquote><p></p>
[QUOTE="handsome, post: 634659, member: 772"] Thank you sir. Come to think of it though, you are quite right to raise an eyebrow at the brilliant test results that i have consistently seen especially on the tube variety.....but perhaps those are feedback designs....... Feedback is but one way and the additional stability cannot be ignored - but at the end of the day you needs gobs of gain - not always so easy with our glass bottles. The fact that the amount of feedback will vary across the spectrum due to the RIAA characteristic and especially with our valves' vastly lower open loop gain, bothers me slightly. Thus feedback is notionally ideal for the solid state crowd......but as ever its that engineering challenge...and individual choice..... [/QUOTE]
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Commercial Members
Commercial Members - News & Discussion
Tube phono preamps
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