Break in time that extends to months or maybe even years!!

@ebm 

 I agree.
McCormack dna-750s’ pair have been upgraded to Teflon caps.

 Probably,not broken in yet. 
 They do have a much different sound from turn on- and the first hour, to leaving powered up for 24+ hours. 
I’m sure my last post delved into this, it is true,
 there’s a colder sound, and the mids and bass just don’t sound right. After 24+ hours of just being in the “on” position, with the preamp, and CD player.

 The first couple hours are colder, less goosebumps for sure.

 Turned on Friday evening after work about 5-6 pm, left on til Saturday evening, the sound is so much different, it is a night and day difference.

 I’m a huge believer, and it is true, when. The components are warmed up, they are relaxed and just have a nice tone to them.
especially when I play the CDs of the LP’s I recorded to them, they do have a nice warm sound,no fatigue at all. The few pops and ticks are very welcome, as I love the album sound.  
 Even the Yamaha receiver and SL-1200mkII  I use to play into my computer to record the LP’ I LEAVE. ON FOR at least an hour to warm up.
 I do notice a difference.  
As far as a year,.

 Mine are never left on continuously, off for storms, vacation, and when not listening.  Good reading in here.

McCormack amps take about 48 hrs to laser beam their magic into my ears,
my speakers took about 250-300 hrs to loosen up and get tight, and amazing.


There is a difference.

Before a serious,listen, I will power up, leave on for 30-40 hrs before a good listen, same with preamp and CD player.



1000 hrs seems a stretch, who claims such a break in?

 I have been break g in a pair of Odyssey Kismets for many weeks now,and yes big difference from day one til now!

i would think 400 or so hours on any capacitor, circuit board, would be sufficient for a good break in.

1000 hours seems odd to me.