Dear Mates,
I heard that istalling switches with illumination like THESE can cause sound deterioration in an amplifier.
My questions are:
1. Is this really true? Ho can a switch in an amplifier cause sound degradaton?
2. what if I install those kind of switches just on a turntable? In that case there is any better way to have a light indicator that the table is on? In my case the motor works with 220V/ac so I am not sure I can install a separate led light, isn't it?
3. In an amplifier I was told that the less impacting way of putting a switch is to use a separate led light. OK, but also on that side I read that there are several different ways of putting a led into play. Can somebody point me to some source of good readings for this?
Thanks for your help.
Regards
Pierre
I heard that istalling switches with illumination like THESE can cause sound deterioration in an amplifier.
My questions are:
1. Is this really true? Ho can a switch in an amplifier cause sound degradaton?
2. what if I install those kind of switches just on a turntable? In that case there is any better way to have a light indicator that the table is on? In my case the motor works with 220V/ac so I am not sure I can install a separate led light, isn't it?
3. In an amplifier I was told that the less impacting way of putting a switch is to use a separate led light. OK, but also on that side I read that there are several different ways of putting a led into play. Can somebody point me to some source of good readings for this?
Thanks for your help.
Regards
Pierre
i'd like to know where you read or heard this.
must be from somebody selling exotic mains cables and those magic blocs that hold down your equipment and purify the sound...
and when it comes to "a separate red light" did they have a chart or list with the effects of different colors like yellow or green or blue... never know different colors might have sonic characters of there own... i wonder if i could get a research grant to study this?
must be from somebody selling exotic mains cables and those magic blocs that hold down your equipment and purify the sound...
and when it comes to "a separate red light" did they have a chart or list with the effects of different colors like yellow or green or blue... never know different colors might have sonic characters of there own... i wonder if i could get a research grant to study this?
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I have a client who until I asked whether his mains cable and outlet wall socket was gold plated inside, insisted on gold plated IEC mains plugs because it apparently "improves the sound by stabilising the mains supply".
Another Snake oil theory!
Another Snake oil theory!
well, there is always a fuss about everything in audio, something which I hate.
Yes, there people around discussing for days on forums about the red light inside a switch, and then you such marvel:
http://www.weiss.ch/assets/product/1/products_xl_side_dac1.png
having several. Apropos does anyone know where I can find those kind of pro-looking green switches?
Regards
Pierre
I did read mains neons are inherently electrically noisy, but did not pursue the issue.
As they are in the mains side, and normally kept away from sensitive inputs, there is normally no problem fitting them that I've experienced.
If you're really worried there are also LED illuminated ones which you can power the indicator LED off any convenient supply within the equipment.
Take care to check LED dropper resistor value, if needed!
As they are in the mains side, and normally kept away from sensitive inputs, there is normally no problem fitting them that I've experienced.
If you're really worried there are also LED illuminated ones which you can power the indicator LED off any convenient supply within the equipment.
Take care to check LED dropper resistor value, if needed!
Mains neons are electrically noisy (like all discharge tubes), but we are not coupling directly to it and typically it takes such a small current (maybe 1mA?) that induction should not be a problem. Your incoming mains supply almost certainly already has much much more noise than a little neon can generate.
Ooh, I was afraid I was about to agree with you. The noise from a neon lamp would indeed get lost in the AC power line noise. BUT that is not the case here! The label says 12 Volt switches, so they could be incandescent but most likely already are LEDs.
So the entire issue is nonsense.
Of course if a 12 volt switch is used on the AC mains there are bigger issues.
ES
Theoretically, if the lamp was neon, it could make some noise. Though I have never had an issue with them. As for worrying whether the lamp was inside the switch or separate, there is no difference electrically or to audio performance.
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