Blue LED's in the CDP

Bryan · 15th February 2005, 11:58 PM

Hey guys,

I have searched and can not find the specific answer to my question. Basically, I want to know what are the reasons for using blue LED's in a CDP near the disc/transport?

Is there a scientific reason for any increase sound quality, or just a matter of aesthetics?

Thanks,

Bryan

paulb · 16th February 2005, 12:19 AM

Aesthetics.

ghetto · 16th February 2005, 01:34 AM

At least one person on this site (who shall remain anonymous) believes that it affects the error correction in such a way as to cause increase in sound quality.

jleaman · 16th February 2005, 01:36 AM

We all know who sthat is.. but he may be correct i tried a red one and liked it.

rabbitz · 16th February 2005, 11:23 AM

On some DVD players, the blue LED comes on to denote multi channel.

xocoatl · 16th February 2005, 12:26 PM

Hey.
I think you guys keep forgetting about one very important thing. Hearing is most subjective human's sense. And the reason of listening to music - sorry... listening to our players and amplifiers is to feel good. So if you feel better (and/or you think it plays better with C37 or blue led pointed at red laser and you'r happy to spend some time dealing with it and/or spend some money) good for you!
I personally like blue leds (any leds actually) from aesthetical point of view, and large heavy metal cases on three spikes...
But me thinks that it plays best with high slew rate, DC coupled, low THD + IMD + noise, flat response, low output, high input impedance. That would be it. :-)

Simon
ps. Note that I'm new in diy audio so my opinions may change in the future.

Guido Tent · 16th February 2005, 01:33 PM

Quote:

Originally posted by ghetto
At least one person on this site (who shall remain anonymous) believes that it affects the error correction in such a way as to cause increase in sound quality.

this person should connect a counter to the error corrector counter output

If there is a difference, it is al in the jitter

cheers

Peter Daniel · 16th February 2005, 01:36 PM

The matter has been discussed here: Y B Blue - how blue LED improves the CD playback

m127 · 22nd March 2005, 02:58 PM

Anyway, how to connect anything to the error corrector counter output? If I have the schematics of a player, how can I find it? Can it be made easily visible (by a LED or anything)?

Guido Tent · 23rd March 2005, 08:29 AM

Quote:

Originally posted by m127
Anyway, how to connect anything to the error corrector counter output? If I have the schematics of a player, how can I find it? Can it be made easily visible (by a LED or anything)?

why do you want to count the errors ?

regards

15th February 2005, 11:58 PM	#1
Bryan diyAudio Member Join Date: Jun 2003 Location: Reading MA	Blue LED's in the CDP Hey guys, I have searched and can not find the specific answer to my question. Basically, I want to know what are the reasons for using blue LED's in a CDP near the disc/transport? Is there a scientific reason for any increase sound quality, or just a matter of aesthetics? Thanks, Bryan __________________ Dont take life too seriously, you will never get out alive!

16th February 2005, 01:36 PM	#8
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Y B Blue? The matter has been discussed here: Y B Blue - how blue LED improves the CD playback __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

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16th February 2005, 12:19 AM	#2
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Aesthetics.

16th February 2005, 01:34 AM	#3
ghetto diyAudio Member Join Date: Jul 2003 Location: Oklahoma	At least one person on this site (who shall remain anonymous) believes that it affects the error correction in such a way as to cause increase in sound quality.

16th February 2005, 01:36 AM	#4
jleaman Banned Join Date: Apr 2002	We all know who sthat is.. but he may be correct i tried a red one and liked it.

16th February 2005, 11:23 AM	#5
rabbitz diyAudio Member Join Date: Jul 2003 Location: Newcastle, Australia	On some DVD players, the blue LED comes on to denote multi channel.

16th February 2005, 12:26 PM	#6
xocoatl diyAudio Member Join Date: Apr 2003 Location: Kraków, PL	Hey. I think you guys keep forgetting about one very important thing. Hearing is most subjective human's sense. And the reason of listening to music - sorry... listening to our players and amplifiers is to feel good. So if you feel better (and/or you think it plays better with C37 or blue led pointed at red laser and you'r happy to spend some time dealing with it and/or spend some money) good for you! I personally like blue leds (any leds actually) from aesthetical point of view, and large heavy metal cases on three spikes... But me thinks that it plays best with high slew rate, DC coupled, low THD + IMD + noise, flat response, low output, high input impedance. That would be it. :-) Simon ps. Note that I'm new in diy audio so my opinions may change in the future.

22nd March 2005, 02:58 PM	#9
m127 diyAudio Member Join Date: Mar 2004 Location: Budapest	Anyway, how to connect anything to the error corrector counter output? If I have the schematics of a player, how can I find it? Can it be made easily visible (by a LED or anything)?

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