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In Reply to: RE: No, it is far more complex posted by morricab on June 27, 2014 at 14:45:11
Hi and thanks for the reply
But if the good sound is " at the moment beyond concrete predictability " do you think that it happens like magic ?
I mean maybe the designers of the best audio equipment have understood some of the secrets to make very good sound.
Because very good devices do exist i guess.
Kind regards,
bg
Follow Ups:
But if the good sound is " at the moment beyond concrete predictability " do you think that it happens like magic ?
Don't be silly, Beppe. There is no magic, just thoughtful design by some guys who have a deeper understanding about what is affecting the sound beyond what they can measure.
Perhaps some have an idea to try and it works so they get a bit "lucky" while coming off as very clever.
Hi and thanks again
I am looking to your system ... interesting concept the one of Nat Audio integrated
I do not understand ... does it have output transformers ?
I mean how is it coupled to the speakers ?
Kind regards,
bg
It does not have output transformers. To the best of my knowledge it is direct coupled. The output is a single large industrial MOSFET. Two more act as regulators.
The only other company that makes such an amp today is Ypsilon for unobtainable money.
Hi and thanks a lot again
A very peculiar amp i see
I am verything but an expert so i end here my questions. I would not be able to understand the answers anyway.
A truly fascinating amp.
And of course the test in the listening.
But i have noticed one thing.
In the late 70' the amps were less complex ... almost textbook topologies
And the sound was quite good.
Then they start to complicate circuits and the sound maybe is more precise and controlled but less musical, harder and flatter.
Less in the space around and more in the speakers.
As an hobby i have started playing with LTSpice, a simulation software.
I understand that one thing is a math simulation and another one actual measurements on a prototype/product.
Nevertheless i am amazed to see how much performance can be obtained from very basic topologies. I do not understand why a line preamp must have more than 20 active devices per channel for instance.
Thanks a lot again.
Kind regards,
bg
It is not just a basic topology but it has to be one lacking negative feedback, which is an altogether more difficult proposition...at least with transistors. Don't kid yourself that an opamp can be used to make a "simple" circuit because the opamp itself is not really simple.
In order to make a simple circuit really sound good a lot of money has to be invested in the power supply and/or output transformers (if it is a tube output amp). With a simple circuit the parts quality matters more and more, which is why Kondo goes so far as making their own silver caps and resistors...it is extreme but everything matters.
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