|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
|
|
Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
|
In Reply to: Re: IMD needs to be brought to the fore posted by BBeck on July 7, 2006 at 15:34:18:
that IMD is extremely important, especially with complex music where all sorts of things are going on simultaneously. I didn't want to overcomplicate things in one post but my take is that if every stage is engineered to be as linear as possible to begin with, then within limits, the driver stage can be "tweaked" to produce a better result at the OP that is both audible and measurable.My equipment has the ability to measure the IMD products produced by two simultaneous tones. In this case I was surprised to see how low this was and therefore did not document the measurements at the time. This is something that I have always intended to revisit but just haven't got around to. In my mind I was comfortable with the fact that each stage was as linear as I could get it and the amp sounded so good that I kinda bought the evidence that IMD must have been insignificant. To be honest, deep down even I have minor doubts about what I measured so I will try to revisit soon.
As for phase distortion, I must confess that I don't know how to measure this. I will make the point that if each stage is VERY linear AND we stick to VERY wide bandwidth in each stage AND VERY low if not (as I prefer) zero global NFB, then we have done most of what we can to minimise phase distortion. BTW, in each case I'm assuming a very good power supply.
Naz
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- I absolutely agree ... - Naz 16:41:25 07/07/06 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2025, Audio Asylum, all rights reserved ]
