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In Reply to: A Speaker Breakin Idea -? posted by SpeakEasy on January 03, 2002 at 14:23:06:
I think speakers should sound great right out of the box. If they don't, I don't think that there is much hope for them.Cut-Throat
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Speakers should sound great right out of the box...when everything is tight and in the same state.The problems usually comes after a few hours playing time, when some components start to relax and others don't.
Given that within speakers, there're moving parts that need time to get used to moving, it stands to reason that the break-in period for a tweeter will be different from that of a mid-range unit and a woofer.
Internal cables and x-overs also need time to burn in and will likewise contribute to an unbalanced sound, once things start to change.
In order to run in a pair of speakers quickly, choose a burn-in CD or CD with a range of different music, throw it in the CDP, set the volume slightly higher than your normal listening level and note the volume setting.
Now move the speakers to face one another about 2 inches apart and reverse the loudspeaker connections to one speaker. Throw a blanket over both speakers, set the CDP to repeat, set the amp to its predetermined volume and hit play.
The most significant changes should take place within the first 100 hours.
nt
nt
Cut-Throat
Greetings Folks,Speakers truly do require a break-in period to reach steady-state performance. This is probably more easily quantifiable than it is for other components in the audio chain.
Speakers break-in principally by the long-term changes induced in the transducers' suspensions caused by repeated mechanical stress. These changes rather loosely obey first-order differential equations, and so the magnitiude of change is roughly exponential with time, i.e, they can be characterized loosely by time constants. One of the reasons why I say "loosely" is that hysteretic artifacts usually play a significant role: a speaker never truly equilibrates to a single steady-state condition; rather, after initial break-in, it continuously changes slowly, although generally minutely, with time and usage.
The components most likely to create long-term changes in speakers are organically-based materials which move as the transducers radiate.
The time constant for equilibration can vary for these materials from a few minutes to several hours.Hope that helps a bit,
MAP
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