I don't want to up[set anybody (honestly) but: 1) burn-in testing as described in the links posted earlier is about stress testing (often to destruction) to determine mortality rates etc, especially in high voltage, high risk components. The sort of components found in audio gear are rather different - except for large caps used in valve HT circuits. The burn-in described here is not about "burning them in to make them better" it's about "burning them in to see if/when they fail"
2) The mere fact that (audio) equipment ALWAYS sounds better after being burned-in really should give you pause for thought. Why would this be? - after all, we know that actually electrolytic caps begin to deteriorate as soon as you start using them... What law of the universe determines that burn-in is always beneficial to audio quality? Have you EVER heard anyone say "it sounded great at first then it got worse..." No, thought not. The reason is simple. It is NOT happening in physical reality. 3) Over a year ago I got my Touch. In preparation for this very question I made some recordings (24/192) of the analogue and digital outputs when it was just out of the box, after 1 week, 1 month and nearly 12 months. AudioDiffMaker finds nothing different in these recordings. 4) Human audio memory is rubbish. We are (mostly) great at pitch, rhythm/timing, harmony, melody and timbre. Very poor at everything else. The brain on the other hand is the most powerful and elegant thing in creation... 5) I really hope no-one belives that the digital circuits "burn-in". I just can't recall the last time I felt my new computer improved its speed and cripness of image, disk read speed etc during its first few days/weeks of usage... The analogue circuit of the Touch comprise the DAC chip, two caps and a resistor. These are not the sort of caps that "burn-in" (form). None of this matters. What matters is that you like the sound, now that you are used to it. -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Blue Jeans Digital,Kimber Speaker & Chord Interconnect cables Kitchen Boom, Outdoors: SB Radio ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=77727 _______________________________________________ Touch mailing list Touch@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/touch
