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Gear / Technical Help => Playback Forum => Topic started by: EScott on April 15, 2005, 07:58:53 PM

Title: Rectifiers
Post by: EScott on April 15, 2005, 07:58:53 PM

I guess the electrical engineer in me has come to question what a rectifier upgrade might be?  I run a push / pull integated pre, and would like to know the signifigance of the rectifier?  Thanks.

Title: Re: Rectifiers
Post by: BobW on April 15, 2005, 10:07:53 PM

I'd like to hear the answers to this, too.
I'm not convinced that I can hear the difference between a pair of 1N4007s (solid state diodes) and a GZ34 or a 5AR4, once they've been filtered.

I know that I can't hear the differences in power cords, if they are of adequate gauge.
Five miles of wet, arcing cable between my house and the distibution station, crappy nailed-up Romex in my crawlspace, and then the last three feet is supposed to have "dramatic sonic impact" ?     I just don't know if I can support that.

John Atkinson had a few interesting things to say about audio voodoo and the placebo effect in this month's Stereophile.
He stated that he thinks the Machina Dynamica "quantum physics chip" that "permanently alters" a CD is hokum.
http://taperssection.com/index.php?topic=37629.0


I think that he's joining the Dark Side       ;D

(http://www.zteamproductions.com/vader/images/VaderPosterSmall.jpg)

Title: Re: Rectifiers
Post by: Daryan on April 15, 2005, 11:29:07 PM

Really?  When changing power chords on various components I can always hear increased dynamics, bigger soundstage, as well as a bigger sense of depth and dynamics.

Title: Re: Rectifiers
Post by: Nick Culbreth on April 16, 2005, 12:05:12 AM

Quote from: Lower-Powered on April 15, 2005, 10:07:53 PM

I know that I can't hear the differences in power cords, if they are of adequate gauge.
Five miles of wet, arcing cable between my house and the distibution station, crappy nailed-up Romex in my crawlspace, and then the last three feet is supposed to have "dramatic sonic impact" ?     I just don't know if I can support that.

After doing some AB comparisons I tend to agree that in my system upgraded power cords made little if any difference.  I think the money would have been better spend on  some more tubes or upgraded interconnects.

Title: Re: Rectifiers
Post by: BobW on April 17, 2005, 09:07:11 AM

I can't see the science in a three foot power cord change when seen from the larger view of power distibution.
I do keep an open mind, and I admit that I can't hear what you hear (and vice-versa).

I think the point is that it's good to be skeptical.

This hobby is all about fun, enjoy it the way you like !     :)