In my experience phono cartridges take about 15 hours for the suspension to settle in. Woofers on most speakers take 4-6 hours, vacuum tubes generally took about 8 hours for the brightness to wear off (turn them on and let them play all day and they are just dandy sounding). I put new capacitors in my old Dynaco A25 speakers- they sounded like absolute arse for 20 minutes until the caps "formed" and then like magic they sounded just like an A-25 should. My new speaker wires took all of .000001 second !
To break in a vehicle engine drive it nicely for about an hour to get everything warmed up and stabilized, then select a medium gear (one where the engine redlines at about 70 mph) and stomp the gas pedal down until it reaches redline, then get out of the gas and let it slow itself down. Repeat two more times and your piston rings are seated and the thing will run for a long long time. I've put over 300,000 miles on a couple of my cars that were broken in this way and they never used any oil. Even my old 2008 PT Looser which now has 190,000 miles only leaks 1/2 quart in 6 months.
To break in a vehicle engine drive it nicely for about an hour to get everything warmed up and stabilized, then select a medium gear (one where the engine redlines at about 70 mph) and stomp the gas pedal down until it reaches redline, then get out of the gas and let it slow itself down. Repeat two more times and your piston rings are seated and the thing will run for a long long time. I've put over 300,000 miles on a couple of my cars that were broken in this way and they never used any oil. Even my old 2008 PT Looser which now has 190,000 miles only leaks 1/2 quart in 6 months.
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