Why does it take so many hours to brea in arc preamps and amps?

While the Dreadnaught D amplifier will sound wonderful without any burn-in time, users "MAY" experience small sonic improvements during the first week or so of operation.

"MAY" this is a get out of jail card. Otherwise they would have used the word "WILL" 
It also infers "Expectation Bias"

The unit is put on a burn-in torture rack to test for any possible component failures

This test is for weak/faulty components under heat stress, not to "burn in" for better sound.


Cheers George

" To all those that say the manufacture has specified a certain "break-in" period, please link the rest of us to those manufacturers links, instead of it being just personal opinion. "  Georgelofi

A second to rsv4's previous post.

Quote from Ayre CX-7eMP owners manual:
"100 to 500 hours of music played through the system will ensure full break-in.

Due to the manufacturing processes used for the printed circuit boards, wires, and capacitors, a break-in period is necessary for the CD player to reach its full sonic potential."

Manufacturer's link:
http://www.ayre.com/manuals/Ayre_CX7eMP_Manual.pdf

Does this meet your criteria George?

Dave

Does this meet your criteria George?

I trust some things Charlie Hansen say’s, but sorry not this one Charlie. If this is so with this Ayre CDP, then the (break-in) needs to done at the factory, then all adjustments be checked and re-done if necessary at the factory, before it’s sent the store/customer.

But in electronics just a few of hours see new electrolytic caps that have sat on the shelf too long and such being "formed" (if you know what that means) to their best, if not they are leaky or too old and need to be replaced.

I believe in speakers, a "break-in" can apply "being a mechanical device" with roll-surrounds that need to bed in and soften up.

Cheers George

So now Charles Hansen is unqualified or just plain lying! You and Bo1972 are the Masters of the Audio Universe. Nobody’s buying it in either case.

Dave

dlcockrum
I put the SR Black mains fuse in my REL subs about a week ago and had to cut the output levels back at a good bit.  "Previous to the fuses, I could not enjoy low listening levels, the sound was just not rich and dynamic."

You and geoffkait need to get together and write a book on hifi voodoo.

Cheers George