Home Propeller Head Plaza

Technical and scientific discussion of amps, cables and other topics.

[ Follow Ups ] Thread: [ Display  All  Email ] [ Propeller Head Plaza ]
[ Alert Moderator ]

Re: Are you advocating informal home do it yourself DBTs?

Not sure about that Soundmind. Personally, if I had the time I would conduct properly designed DBTs with cds using distorted and undistorted data. I made files using Keith Howard's software. I took a 10 second segment of solo violin (My rationale for this software was that it is a single instrument with a high harmonic content so added distortion may have a good chance to be audible).

Instead of using some regular orderly patterns like Mr. Howard did, I took actual distortion data taken at 1Khz from Soundstage magazine. I took the data from 5 different amps (of different topologies), some recommended from listening, some not. I then encoded the original undistorted cd with each distortion making a total of 6 10 second files on the cd (one for each amp and the undistorted signal). I can hear the difference but I didn't try it yet blind or double blind. Still, with such a cd it is much easier than trying to assemble all the amps; However, it is unlikely that this character for each amp will hold over all speakers etc. so in a way the distorted cd is BETTER for getting consistent results from a variety of systems because it focuses only on the distortion aspect of the argument.

This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  

Follow Ups Full Thread
Follow Ups
You can not post to an archived thread.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]