Post by Owen Y on Sept 26, 2018 19:25:50 GMT 12
Ah, although we know that measurements often don't tell us everything
 This preamp sounds v good however, very listenable, powerful, dynamic, without edgy artifacts or such.... DarkLantern blog - darklanternforowen.wordpress.com
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Post by colinf on Sept 26, 2018 20:37:53 GMT 12
Measurements will tell you, but are we measuring the right things? And interpreting the results according to psychoacoustics? 😗
AMR-iFi R&D
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Post by Owen Y on Sept 27, 2018 9:54:20 GMT 12
Yes, I think that we often do not measure the right things.
Or do not know how to measure all the right things. eg. We know now of course that lowest distortion is not the whole story. I've found however, that measurements can sometimes help explain what you're hearing. DarkLantern blog - darklanternforowen.wordpress.com
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Vacuum tube preamp (Line Stage) journey Oct 4, 2018 21:54:07 GMT 12
- Edited Oct 4, 2018 21:58:54 GMT 12 by Owen Y
Post by Owen Y on Oct 4, 2018 21:54:07 GMT 12
Final measurements:
6SN7-WOT Linestage Gain is 4.8x (13.6dB) - around 50% lower than the previous 76-6SN7 cathode follower linestage, due mainly to the 4:1 OPT. I'm listening now at around 11 o'clock volume setting - around -27dB attenuation, which still leaves plenty of power headroom. DarkLantern blog - darklanternforowen.wordpress.com
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Post by colinf on Oct 5, 2018 1:02:56 GMT 12
Ok. Your speakers are very sensitive and it’s good the TVCs are giving enough adjustability to the volume settings.
AMR-iFi R&D
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