The Intellectual People Podcast - Tom Christiansen of Neurochrome

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jtwrace

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Please be sure to watch, like and subscribe to the YouTube Channel!

Part 1 https://www.youtube.com/watch?v=1VklknumxTA

« Last Edit: 31 Jan 2021, 02:31 pm by jtwrace »

jtwrace

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jmc207

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I enjoyed Part 1 last night. Hope to watch Part 2 tonight. Thanks!

poseidonsvoice

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 :green: :green: :green: :thumb: :thumb: :thumb:

Best,
Anand.

jtwrace

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I enjoyed Part 1 last night. Hope to watch Part 2 tonight. Thanks!
Please let us know what you think and thanks for watching. 

jtwrace

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:green: :green: :green: :thumb: :thumb: :thumb:

Best,
Anand.
I presume you watched it? 

WC

I watched both of the videos. I liked the conversation. I already knew of Tom and Neurochrome (have 6 of his amp boards and misc. other boards).

poseidonsvoice

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I presume you watched it?

Yes. The discussion of PCB Layout is tremendously important. Layout is the circuit and one shouldn’t assume that any analog engineer is as proficient as Tom is. I learned that several years ago with my 1st discussions with him. I can almost guarantee you that he can take any one of the designs from a “famous” designer (say Pass) and considerably improve the layout, measurements and ultimately (if you believe improved measurements equals better sound) render a better sounding amplifier. Period. Full stop.

It’s one of the reasons why a Christiansen designed amp will always have a spot in my system!

Great interview!

Best,
Anand.

jtwrace

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Yes. The discussion of PCB Layout is tremendously important. Layout is the circuit and one shouldn’t assume that any analog engineer is as proficient as Tom is. I learned that several years ago with my 1st discussions with him. I can almost guarantee you that he can take any one of the designs from a “famous” designer (say Pass) and considerably improve the layout, measurements and ultimately (if you believe improved measurements equals better sound) render a better sounding amplifier. Period. Full stop.

It’s one of the reasons why a Christiansen designed amp will always have a spot in my system!

Great interview!

Best,
Anand.
Thanks!  I'd like to try a 4 ch 686 at some point.  How is the heat output? 

poseidonsvoice

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Thanks!  I'd like to try a 4 ch 686 at some point.  How is the heat output?

The heat output is pretty low on a 2ch 686 (barely warm on 3U heatsinks, like ~ 40 degrees C or 104 deg F), but the problem is that your chassis gets mighty long or tall with 4 ch build. Each board is 212 X 64 X 40 mm. I don't have exact numbers for you in degrees Kelvin, but I am sure Tom knows. Perhaps 2 separate stereo chassis.

Best,
Anand.

Folsom

I like Tom a lot but am not nearly as confident in his studies of psychology given the fact that he thinks capacitors sound the same as a general statement. They don't measure identically and the differences don't always appear to be appreciable in measurements but... I'll say it all day, anyone who thinks they can't hear any difference is fooling themselves, as opposed to those that think they do are fooling themselves. What's amusing here is he used capacitors that I'd quantify as sounding good, in his builds. *Note I would discount tests where people will have a bunch of basically the same, if not THE same capacitors and try to quantify based off of that.

He does however mention that some people 'tweak' something then switch back and say it sound better, well, I believe that is a frequent possibility and/or thing. Not all changes are good. In fact I'd say a boat load are bad ones.

I'd say he's mistaken about the commercial viability of his amplifiers. The only real issue is he ncored himself in a sense. Basically there are some mega system that could benefit greatly from one of his amplifiers.

Why Tom doesn't have people banging on his door for even more work than he already does is slightly mysterious. What more could you ask for? Talented, super nice, and already has free health care.
« Last Edit: 6 Feb 2021, 03:50 pm by Folsom »

jtwrace

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The heat output is pretty low on a 2ch 686 (barely warm on 3U heatsinks, like ~ 40 degrees C or 104 deg F), but the problem is that your chassis gets mighty long or tall with 4 ch build. Each board is 212 X 64 X 40 mm. I don't have exact numbers for you in degrees Kelvin, but I am sure Tom knows. Perhaps 2 separate stereo chassis.

Best,
Anand.
Thanks, that helps.  Yes, (2) stereo amps would certainly be the way to go for multiple reasons.