a/b interconnect cable comparison single ended

John's idea of using the tape look to simply route signal through the cable is a good one, but there is one catch. That is, if you've not used the tape loops to any great extent, just switching them into the circuit will change the sonics regardless of the cables under test. This obviously has to do with "break in" and many will think that it is kinda crazy, but it is true. If in doubt, plug your CD player into a different input that you don't normally use ( NOT a phono input ) and see if you can hear a difference. We've done this using even mass produced receivers and the differences between various inputs was quite evident, even to the "non-audiophiles" that first noticed the differences in their system. Sean
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Thanks Sean and John,going to try that,cheers,Bob

question,
Why would it be better to use the tape loop circuit instead of using two line inputs as I suggested earlier in my post. Switching from one line input to the other, for an A/B comparison?
Thanks, jim

Jea48: Using the tape loop allows one to use their existing set-up and simply switch the interconnects in and out of the system instantaneously. No need to remove, replace, reconnect, etc... All of this at a flip of a switch WITHOUT altering the load impedances by running cabling in parallel to two different input jacks. Sean
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Using rapid A/B comparisons I get some info, but not a complete data set.

With the theory that difference is not always better (or worse) I find I obtain more useful info by putting a given cable into the system and living with it for a while (days). Then take it out and put in the comparator and listen over a couple of days. I keep doing this until the one I want to live with emerges. If you feel a need to do this blind get a buddy or a kindly spouse to help. (Just don't peek!)

Sometimes a difference is initially disconcerting; sometimes the unfamilar is initally attractive. Long term satisfaction is what you really want.

On the other hand, to the extent you have a 'gold standard' as a comparitor, rapid testing can help find DUTs that are simliar in sound. Otherwise your comparisons lack a control. John's method (using cable 'c') does account for this. I also agree with Sean... any change you introduce, other than the variable you want to test, may confound your results.

So I keep it simple. Out with one, in with the other. Reverse, repeat. Works well for me.