phase inverted preamps...about


Hi there
what do you think it is optimum when we have an inverted preamp (like Cary, Cj..) to change the speaker cables on the amplifier or at the speakers ??

Give your vote and if there is a technical documentation share it with us.

(Now I am using inversion at the amplifier).

George
128x128kops
If your speaker cables consist of two conductors made the same, just that one is marked red for positive and one is marked black for negative, then either way you invert phase you will still have one wire from the + amp terminal to the - speaker terminal, and one from the - amp terminal to the + speaker terminal. It makes no difference which wire is marked red and which is marked black.
Most people...if they do it at all, make the switch at the speaker end for no other reason than convenience I would think.

Dave
Rewind to Clio09's observation about the leads being reversed from the crossover to the woofer he pulled on the Spendor 7/1's. Various crossover designs require a phase inversion on one of the drivers (usually the mid-range) to maintain overall phase cohesiveness. Check out the Loudspeaker Cookbook for reference. There would be no reason to invert your speaker leads in this case. I hope that makes sense.
Wouldn't it be better at the speaker end since that would minimize the amount of inverted signal? :)

In my integrated amp manual it says that absolute phase is inverted and that you can correct by inverting positive for negative at the amp. It goes on to say that the phase of recordings is indeterminate so no matter which way you choose, you will be wrong about 1/2 the time anyway. So does it make sense that as long as you have each side set up consistently then it does not make a difference?