Phono pre "Break-In" process? Necessary?


Just ordered a new phono preamp from Jolida  (J9II). Is there a break in process I should be aware of? Or do I simply play normal and realistically believe that it will open up as time goes on. Also, how much can one expect this pre will improve over time?


markeetaux
roger_paul " ... Yes there is distortion that cannot be measured and has been the most destructive obstacle in the way of reproducing actual live sound ..."

If you have identified distortion that you can't measure, then you are measuring the wrong thing.
Actually - it cannot be measured by external analyzers but it can be detected within the circuit and removed. As a result the resolution, detail and physical layout of the original venue become blatantly obvious.

The amplifier is able to pass the electrical version of the sound waves as if it only traveled via the air medium.

The velocity has to be included or it cannot sound live.

Roger
roger_paul " ... Actually - it cannot be measured by external analyzers but it can be detected within the circuit and removed."

If you have identified distortion but can't measure it, then either you are measuring the wrong thing, or you're mistaken about the distortion in the first place. If the distortion can be "detected," then it can be measured.
THD analyzers do not detect velocity. It is too far below the ability to display. The circuit can detect velocity and correct faint variations in speed in real time.

It is those speed variations the destroy the integrity of the final output sound and make objects embedded in the signal appear to be drifting (not stable).
roger_paul  " ... THD analyzers do not detect velocity. It is too far below the ability to display. The circuit can detect velocity and correct faint variations in speed in real time."

Oh,  you are talking about a turntable! Speed variations can certainly be very precisely measured. Indeed, the speed of anything can be measured. You just need the right tool.