Thank you for taking the time to do a follow up video. You may want to add a resistor after the solid state rectification as outlined in the Baseline paper so that the voltage doesnt go so high. I have used the base of an old octal tube resulting in a direct plug and play option. Also, Peterh posfed on audiokarma the below finding on why he settled with a 2k feedback resistor. "VTA-70 and feedback adjustments Reducing the feedback resistor to 2k will half distortion, as expected, while reducing sensitibity to half. Attatched scan is 1khz at 10w power THD at 1w = 0.06% THD at 32w 0.55%" I can link the thread if you like. How does that compare to your findings with both the stock and the vta with 3.3k?
And I’m gonna give a little feed back, I love your videos and the style and method in which you explain things but most of your videos are so over my head, I’d love it if you maybe started some type of series of videos where you take a minute and just explain some simple Basics of electronics. But then again there’s a million people that already do that but I honestly think you’d do it better.
@@bradrose6323 just be aware of the trade off that biasing hotter may reduce tube life. Post here after you have tried it out and let us know if you can perceive a difference.
@@NovaluxStereophonic this may be a stupid comment but I’d trade tube life for better sound, isn’t that the goal? And when talking tube life, how long does a tube last?
Iʻd love to see similar examinations of the Marantz 8B, Mac 240, Mac 275, Citation II... That would be illuminating! Iʻm also curious to hear what you feel is the impact of the VTA driver board versus the original.
Very well done and helpful! You answered all my questions.
Thank you for taking the time to do a follow up video. You may want to add a resistor after the solid state rectification as outlined in the Baseline paper so that the voltage doesnt go so high. I have used the base of an old octal tube resulting in a direct plug and play option.
Also, Peterh posfed on audiokarma the below finding on why he settled with a 2k feedback resistor.
"VTA-70 and feedback adjustments
Reducing the feedback resistor to 2k will half distortion, as expected, while reducing sensitibity to half.
Attatched scan is 1khz at 10w power
THD at 1w = 0.06%
THD at 32w 0.55%"
I can link the thread if you like.
How does that compare to your findings with both the stock and the vta with 3.3k?
I’m a beginner and I basically got out of this that I should bias my vta st70 at .50 instead of .40. I’m excited to try this. Great video
And I’m gonna give a little feed back, I love your videos and the style and method in which you explain things but most of your videos are so over my head, I’d love it if you maybe started some type of series of videos where you take a minute and just explain some simple Basics of electronics. But then again there’s a million people that already do that but I honestly think you’d do it better.
@@bradrose6323 just be aware of the trade off that biasing hotter may reduce tube life. Post here after you have tried it out and let us know if you can perceive a difference.
@@NovaluxStereophonic this may be a stupid comment but I’d trade tube life for better sound, isn’t that the goal? And when talking tube life, how long does a tube last?
Can’t wait to hear the new comparison results! Great video!
Hi Ben!!!
Iʻd love to see similar examinations of the Marantz 8B, Mac 240, Mac 275, Citation II... That would be illuminating!
Iʻm also curious to hear what you feel is the impact of the VTA driver board versus the original.
Original vs. VTA - ua-cam.com/video/UgFDoNzdHUM/v-deo.htmlsi=osSTloOeiuiAGDkK
Marantz 9 - ua-cam.com/video/SdS1x1ILZBM/v-deo.htmlsi=BZug7f5z2cjJeNQ3