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In Reply to: RE: Has anyone else tried this experiment? posted by Lew on July 07, 2017 at 17:55:24
The difference is I was listening to mono sources through a single channel of each amp then. Now I am listening to stereo material through both channels of each amp. I see no reason the switch would not be transparent as it is designed for switching between multiple sources. If you take the switch out you run into the problem of music memory loss. You can not switch the gear around quick enough for your ear/brain to still remember what the other amp sounded like.
Follow Ups:
The fact that you see no reason why the switch is not transparent does not mean it's transparent. Your own report suggests it's not. Yes the other way is cumbersome and also prone to erroneous conclusions but you might at least try it.
Why don't you give it a try and let us know what happens?
The fact that you see no reason why the switch is not transparent does not mean it's transparent. Your own report suggests it's not. Yes the other way is cumbersome and also prone to erroneous conclusions but you might at least try it.
I do not see anything in my report that says the switch is not transparent. It is but one link in the chain and I can not think of any way it could make all the amps sound the same considering it was designed to switch between multiple sources. Besides, I tried the other way a couple of years ago and came to the conclusion that I could not make the changes quick enough to be able to remember how the other amp sounded. That is why I put the switch in.
Edits: 07/08/17 07/08/17
For what it's worth, I was not saying that you said the switch was not transparent. I was saying that nothing you've told us constitutes proof that the switch IS transparent, except for your assertion that it is. In fact, your report suggests that one possible explanation for your findings is that the switch imposes a subtle coloration that obscures any significant differences in the sound of your amplifiers. But I do admit this is only one possibility.However, any switch has a finite contact resistance, a power rating, and an inherent capacitance. Any of these qualities could be having an effect on what you are hearing. Plus, the very act of inserting the switch requires you to create a discontinuity in the connection between the amplifier output and the speaker input. Connectors too affect the sound, in my experience.
I suggest that you take the switch out of the signal path, and just listen over the course of a week or two to each of the two amplifiers, one at a time. I would bet that you will emerge from that experience with a clear preference of one amplifier over the other. Short term sonic memory is not required to figure this out.
Edits: 07/08/17 09/03/17
I am sorry, but I do not agree with the idea of amp imprint over time. I think an instantaneous switching is the only way you will hear the differences clearly.
"I suggest that you take the switch out of the signal path, and just listen over the course of a week or two to each of the two amplifiers, one at a time. I would bet that you will emerge from that experience with a clear preference of one amplifier over the other. Short term sonic memory is not required to figure this out."
I think the trouble is that many new psychological "confounding factors" will then be introduced, that are quite possibly a lot more significant than the effects of capacitance, resistance, or whatever, in his switch.
To make a fair test, he would now need to arrange tests where he believed he was listening to amplifier A for a couple of weeks but in actuality it was amplifier B, and so on.
Chris
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