Does anyone care to ask an amplifier designer a technical question? My door is open.


I closed the cable and fuse thread because the trolls were making a mess of things. I hope they dont find me here.

I design Tube and Solid State power amps and preamps for Music Reference. I have a degree in Electrical Engineering, have trained my ears keenly to hear frequency response differences, distortion and pretty good at guessing SPL. Ive spent 40 years doing that as a tech, store owner, and designer.
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Perhaps someone would like to ask a question about how one designs a successfull amplifier? What determines damping factor and what damping factor does besides damping the woofer. There is an entirely different, I feel better way to look at damping and call it Regulation , which is 1/damping.

I like to tell true stories of my experience with others in this industry.

I have started a school which you can visit at http://berkeleyhifischool.com/ There you can see some of my presentations.

On YouTube go to the Music Reference channel to see how to design and build your own tube linestage. The series has over 200,000 views. You have to hit the video tab to see all.

I am not here to advertise for MR. Soon I will be making and posting more videos on YouTube. I don’t make any money off the videos, I just want to share knowledge and I hope others will share knowledge. Asking a good question is actually a display of your knowledge because you know enough to formulate a decent question.

Starting in January I plan to make these videos and post them on the HiFi school site and hosted on a new YouTube channel belonging to the school.


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Roger doesn't suffer fools gladly. Not that I'm calling anyone a fool ;-) .
Okay, does atmasphere believe that power cables can make huge differences in an amplifier’s sonic performance and why?

I’m not picking a fight, I just don’t understand the rationale behind what is so obvious to many audiophiles and my personal experiences with testing cables on high end equipment (limited to about 2 dozen systems). Is it because our equipment is all faulty due to poor design or poor implementation?

Is Caelin Gabriel wrong to suggest that the first 2 meters of wire connecting the equipment is the most important compared to the upstream wiring?

Does most of the EMI come from the equipment and not from in the air contamination?

These are relevant questions, especially for me, a non-engineer. Only one of my friends is a manufacturer, the others are famous mastering engineers so most of my friends are non-technically knowledgeable audiophiles.
No, Mr. Gabriel is not completely wrong and makes some good points. Yes, your points are reasonable. Perhaps this is just not the place to go there. I may disagree with the OPs opinions on cords and caps etc...but he started this thread for a different reason in general and I respect that. I also appreciate his desire to answer questions and share knowledge. It’s OK to have different experiences and opinions and let them rest for the greater good of the thread.