Phono pre "Break-In" process? Necessary?

150 to 250 hours  for break-in is patently ridiculous…turn it on and let it warm up for a few minutes and just enjoy the thing without worrying about it…if it seems to get a little better sounding over time it could simply be due to your getting used to it, or a gift from the mysterious electron gods...but the mythology of unquantifiable extreme break in time (on for 24 hours a day 7 days straight? man….) for components is a silly concept promoted by those who are wound a little too tight. Components sound a little different from day to day anyway…earwax buildup, humidity, local electric grid fluctuations…mood swings... 

Break-in time unfortunately is a necessary evil. A freshly built amplifier will sound quite differently say.. 3 or 4 weeks later. It is centered around chemical changes that happen when power is applied to a given circuit or system to include interconnects, speaker wire etc.

Generally speaking audiophiles that recognize and hear the "break-in" effect are not imagining it - it really does happen. This is why manufacturers may have a break-in shelf for components or sub-assemblies or whole finished products that just have time put on them to try to shorten the break-in time experienced by the customer when he or she receives it in their home.

If you cannot hear the effects of break-in, it usually means that some component in your system is masking the improvement in purity.

The sonic explanation of break-in is the slow but sure improvement in apparent detail and focus of the projected sound stage due to the reduction in timing errors.

Roger

There is a break-in period for components, how much varies by manufacturer. Would suggest you ask Jolida or dealer what to expect. 

Generally speaking audiophiles that recognize and hear the "break-in" effect are not imagining it - it really does happen.

Totally agree.

Agree with break-in period on electronics, however its quite short IMO. I find that length of period on, i.e. the circuit is fully thermally stabilized have a much greater effect on sound quality than any "break-in" have. 

Speakers have a much more prolonged breaking process as there literally are moving parts in a speaker that needs to loosen up so to speak.

Wires and Cables - as close to ZERO as one can get in "break-in" time

With in regards to break-in my overall impression on this that it is something that the actual end user of the product is "doing" so that him/her has an actual part is the process, i.e. "if I had not broken it in properly it would not sound this good"  

My two cents, I'm sure a lot of people have widely different opinions :-)

Good Listening

Peter