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speaker cable burn in.
"Henrik" wrote:
"John Deans" wrote in message
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"chris" wrote in message
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Hi I though it would be an interesting thread to start.
Burn in of speaker cables, how long for what dielectric. What's your
experiences?
Bare OFC 5N + PVC +48hrs
Bare OFC 4N + PE about 1 hour
ive not tried Silver+ Teflon yet (need an overdraft 1st)
I have heard half convincing arguments for speaker burn in, i.e. the
suspension becomes more flexible with use I reply how does the
manufacturer
guarantee the final result. But I can see now way that the performance of
any form of wire will change with normal use.
John D
I do not see it.
I´m certain that these experiences are not in any kind related to the cable.
Instead, it's the speaker that changes its resonance frequency, "Fs", to the
specified (lower) value. Just as you first said, John. Quite audiable on a
new speaker setup. The difference is first noticed in the bass. After
measurements a friend of mine did a couple of years ago, on a common 12"
driver, there was a change from Fs=33 Hz (brand new) to Fs=26Hz (as
specified in datasheet), after a night's playing.
Henrik
I've done that experiment several times on raw woofers with manufacturer
break-in recommendations of 24,48 and 150 hours. What happens is; if you take
measurements immediately following the break-in period when the voice coil is
still hot you'll find that the Fs will be 5-10% lower and the Vas (compliance)
will be 5-10% greater. If you allow the woofer to cool off for several hours
you'll find that the values will have 'reverted' to those taken before
'break-in.'
Another variable in your experiment was taking 'data sheet' values for
comparison. T/S measurements of speakers can vary quite a bit from unit to unit
or same-sample measured twice with many set-ups.
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