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Ray Kimber says the long speaker run is the way to go, others say the long pre run. I give, what is your actual experience?
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Components for home audio have widely varying output impedances. For long ICs and short speaker cables, the preamp or CD player driving the long ICs should have a very low output impedance, below about 50 ohms. Otherwise, the properties of the IC cable dominate the quality of the sound. Note that in this case it is also helpful to use a balanced setup and to load the receiving ends of the long ICs with impedances around 600 to 1000 ohms (not the 25K to 100Kohms found in most power amps).If your source is incapable of driving a 600 ohm load, then you will be better off with short ICs and longer speaker cables. This is more expensive for equivalent quality of sound, so you need to consider the alternative of spending the money on a better source instead of the speaker cables. Be sure to keep the speaker cables off the carpet with lifters, regardless of which way you go.
A text-book opamp based output strage can have low output impedance, and still have difficulty in adequately driving more than 6-10 feet of IC due to capacitive loading problems.
See:
http://www.AudioAsylum.com/audio/tweaks/messages/1080.htmlIn fact, when MORE output R is used, this can prevent such types of output stages from getting into capacitive loading problems.
Output stages rated for being able to drive 600 ohms for real, should not be a problem. However, just because an output has a rated output impedance of 50 ohms or lower does not mean it can handle the capacitive loading too.
Jon Risch
And I hope you are feeling better!
Two producers ( Krell and Art Audio ) both recommended a shortest speaker run as possible and run balanced on long interconnect cables ( 15ft. run ) for my set up.I am not sure what the rule of thumb is.
The ideal world answer is long IC's, and short speaker cables. The real world answer is generally long speaker cables, and short IC's for practical reasons.See"Long Speaker Cables vs. Long Interconnects":
http://www.AudioAsylum.com/audio/tweaks/messages/1080.html
Jon Risch
I have done it both ways largely depending on what my room was like. Obviously the best was short both save that the sources are then likely to be shaken by the music. Then there are impedances to consider, such as what happens to your high end on a long run. All and all I don't think there is a simple answer. Do what you have to do as best as you can.
I use 5 - 6 meter interconnects between my preamp and amp. In the past I've tried speakers cables of comparable length (20') and felt that I was losing some bass definition. The problem is that this is so equipment and cable specific that sweeping statements are treading on very dubious ground. I'll spare you the theory but in my experience, with my equipment, long interconnects seem to have less sonic impact. Shorter is always better in both cases but in my situation long interconnects also seemed to have less sonic impact than a stack of equipment between the speakers. YMMV of course.
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