Are you sure it’s not a matter of the equipment just being on vs playing the pink noise cd ?
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While I can't speak to your stereo, my experience is that it just needs to be on to warm up. Pink noise, though, is allegedly good for breaking in signal cables, where a signal needs to be passing through the cables.
I'd be interested if you notice a difference between warm up with no noise and warm up with pink noise..
The reason I went to the pink noise is that “just leaving the system on” had little or no effect. Really comes to life with the pink noise warmup after about a half hour or so. Just playing discs as normal takes more than an hour, sometimes two, before I’m really enjoying it.
This may be just my set. I have a CJ tube preamp and NuForce monoblock solid state amps.
Haven’t done any FDA-mandated, double-blind studies but I’m of a similar opinion as RVP. Processing signal vs simply powered up seems necessary to reach some kind of optimum performance level. Pink noise getcha there faster than music? Dunno, but track 9 from the XLO Test and Burn-In CD is the weapon of choice. Have been listening to a low power Class A ss amp from First Watt over the last week or so. Less than 100 hours on it now. It sounds good after the first hour playing music but after 6+ hours or so, it is really magic...or at least that’s what I think which, ultimately, is all that matters in this pastime.
I I thought we had already discussed the warm-up vs. no warm-up topic ad nuseam. Technically speaking, if I understand it correctly, the main and possibly only difference between pink noise and “regular” music is all frequencies are at or near identical amplitude. Maybe this implies a uniform voltage or current is “seen” by the components in the path of signal thus causing a different behavior. Perhaps someone with an in-depth understanding of how electronic components react to constant vs. varying voltage/current can chime in.
Interesting find nonetheless.
Those who find there system lacking at start-up should try a pink noise disc.
By covering the whole spectrum of frequencies, warm-up time is effectively decreased. It has made a huge difference in my enjoyment, not having to suffer through the crappy sound of discs played before the set is ready for prime time.