Fozgometer

Lew, the manual states that channel separation is what's being measured. Also: "The readings are virtually independent of overall signal levels, and can be made with a wide range of input signals without effecting accuracy."

So your comment about what correct azimuth entails is consistent with using the Fozgometer for alignment. Try to get both the best balance between channels and the highest separation in each channel. As you also mention, the two are probably synonymous in a perfect world, but I've found that sometimes it's a compromise between the best separation and the best balance. But which should have priority is not clear to me and I've biased the alignment in favor of trying to get channel separation in better balance while maintaining the best separation value in the lower of the two channels. Does that seem reasonable? (Reasonable or not, it sounds mighty fine. :-)

It would be helpful if Mr. Fosgate and Musical Surroundings were a bit more thorough in describing what the goals are and how to get there.

Regards,
Tom

Tom...actually its very rewarding when you listen to the final results and how each of the parameters effect the overall sound. ...and you really only have to do the whole job once (until the next cartridge comes along..)

Stingreen, I may try a uni-pivot tonearm some day. But for now, it's gimbals, man.

Best,
Tom

Turns out Peter Ledermann has already used my "fun" method but without disconnecting the distracting active channel first. See last paragraph -

http://db.audioasylum.com/cgi/m.mpl?forum=vinyl&n=840188&highlight=

Cheers,

... the manual states that channel separation is what's being measured.

"Channel separation" is just a derivative statistic. The only way to quantify it is to measure how much information intended to be in channel A is bleeding into channel B, and vice-versa; i.e., crosstalk.

If you measure crosstalk in each direction, average the results and subtract from a notional maximum signal level, the resulting statistic is called "channel separation". The less crosstalk, the greater the channel separation. They're exactly and inversely proportional.

A statement that one is measuring channel separation but not crosstalk would be nonsense. They're two sides of the same coin.