Right you are clio. I just checked the listing, and it's closed. This one had a nice walnut base, which I hadn't before seen from Music Reference.
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.
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.
.
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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- 845 posts total
Roger addressed this previously in the thread. The short answer is not much if at all. The power cord should be designed such that the ends provide good connections to your outlet receptacle and amp. It should also be of sufficient gauge so as not to cause a safety hazard. I believe the captive power cord on the Music Reference RM-9 was 14 or 16 gauge. Roger used 18 gauge lamp cord for Music Reference preamp and MC head amp captive power cords. I made my own 14 gauge power cords for my components. I bought male and female IEC connectors on Ali Baba and sourced some computer grade three conductor stranded wire. They were not hard to make and parts costs per cable were around $30. |
@clio09 In one post Roger says it doesn't make much difference, OTOH in the very same post describes the power cords that he made up special and how anyone can do it. I have to assume that he felt it was worth doing. |
@corby2 Hello, I have a budget system I like. It has a 25 watt Will Vincent Balwin tube amp with Coincident Dynamites. I do not have an audiophile power cord. How much do audiophile power cords help with the amp? I was thinking of getting to Anticable stage 3 power cord. Thanks, Cory in Reno Hi Corby, Very few amplifier makers wind their own transformers, but I do. When I wind a transformer for a 25 watt amplifier it is about 150 feet of 24 ga wire. After I am done I really dont see how 12 feet of 18 or 16 or 14 ga wire will make any difference. If you measure the resistance of the primary circuit of your amplifier it is like likely near 5 ohms given that it is 25 watts. This is easily done by unplugging the amp, turning it on, putting an ohmmeter across the two prongs of the power plug. Now you will know the total resistance of the primary loop. The total resistance of the secondary loop (reflected to the primary) is similar to that so double what you just measured. Now ask yourself how much a power cord of 0.01 or 0.1 ohm or 0.5 ohm is going to make when added to that number. The claims about RF shielding are absolute bullshit. Along with any other specious claims. Just get a cord with good connectors. |
- 845 posts total