I had an interesting similar experience with two compression drivers I recently brought. I crossed them at 500Hz, swept the horns, all good... Have em to my friend, (who only listens to classical music at low volume) One month later she reports something 'strange' with the RhS. So with both on the bench right next to each other they sounded totally fine... Sweep them both again and Fascinatingly, as they had 'broken in' or settled down ones Fs had dipped down to about 400Hz while the other was solid around the original 600Hz. This was causing issues with the roll off in the cross over that sounded phase related not volume wise (because they were soooo efficient) Obvs this is a manufacturing error and not 'normal' breaking in but was a lesson that even non audiophile peeps can hear subtle things like phase and the like.... Thanks as always for your insights! Dan.
VOODOO...................indeed that's what those expert audiohiles claim ......unless one day they have the experience and can't explain , neither do I ..........but I learned to accept what I hear and what I feel..................the SAME beach has a total different atmosphere at night under the moonshine than at daytime under the sun, at sunset or sundown............and even on a rainy day.........and the mood I am in at that given moment ...........If the audtive memory is something quite relative and one has to learn to memorize as best as we can but never a real fact and relative.............the mood and the athmosphere of an experience ....and so also the music .............is something we can remember a lifetime just like a flavor or a the fragraance of a flower................music talks to the soul and will be integrated in yourself ...............or when it's purely HIFI it will fade as fast as it will be gone only to keep the meoty of an iaudiophile i mpression or ..JUDGEMENT ............
Correct Janos .............Energy ( electricty ) flowing in a conductor is something very complex and very depending and or influenced by any parameter .......induction, light, temperature, purity , electromagnetic fields, present and created , capacitance, impedance, material, isolation, distance, and more .....may be also by the ( our consciesness ) state of mind .......
Not ever the conditions are the same ........and this gets more important or worse when we shift to higher frequencies, radio frequencies and in digital gear , the sloightest modification or even displacing the wiring or changing it has tremendous impact .....as welll as the slightest change in very tiny capacitance values and resistance or inductance.........I worked, build one and modified lot of CD players in the past decades and I kept being astonished to the impact of little details made such a big difference....... one shouild listen to any change of whatever you make before doing the next thing.......that's a mistake I made in the past ........do one thing at a time .......and listen .....
I remember the first time I heard sounds behind me .......and one day I looked outside the window to see where that dog was barking .......hahaha....it was an asthonishing experience....from a STEREO system.....
Another strange experience when I had acquired my pair of Axiom80 loudspeakers........this one was an eyeopener.........I had placed one LS on his back on the dining table and hooked up a tiny set amplifier to test the speaker with short silver cables.... .................What was new to my experience to hear this for the first time.............the sound was filling up the room like water does in a bath tub.....the more I turned on the level the more the room filled up with sound from the floor up..........just like pooring water in a swimming pool ........I had never had this experience before ..
Thank you for the upload janos, have a sunny day....and let the cats do their thing...