Re: [ARSCLIST] headphones "break-in"?

[Robert J Hodge <rjhodge@xxxxxxx>]

Hi Tom,

That's very true. I still use the Altec 604 series of speakers as my
reference. Altec used paper cones, but with vastly different surrounds
and cone supports in their last designs. The old frames can be reconed
to the new spec. cones. 
But many reputable manufacturers used other materials equally well.
Polypropylene comes to mind as one of them.

BH
   

-----Original Message-----
From: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx] On Behalf Of Tom Fine
Sent: Wednesday, December 19, 2007 9:56 AM
To: ARSCLIST@xxxxxxxxxxxx
Subject: Re: [ARSCLIST] headphones "break-in"?

Hi Bob:

I tend to agree with you except that some newer speakers have drivers
made of such stiff material 
that they actually do SOUND better after they get flexed a little bit. I
doubt many if any speakers 
made today have the old paper cone material on woofers, for instance.
Some high-end 
audiophoolishly-priced speakers claimed to come "broken in" from hours
of loud playing at the 
factory. Remember that some of these modern woofers have cones made of
metal films, certainly a long 
way from "egg carton" paper.

The same is true in some respects of modern headphones -- the drivers
are made of relatively stiff 
materials that may not flex optimally right out of the box. In any case,
I figure it can't hurt to 
run the cans with the junkola super-compressed FM rock station all day
and see if I hear a 
difference with better music at lower levels tonight. I'm not running
them anywhere their rated 
break-up point right now, just louder than I like to listen.

As for the foam thing, I remember watching the foam surround on a
friend's older Infinity speakers 
literally blow apart from loud music at a party. Some of the older types
of foam get brittle and 
flakey from exposure to either air or moisture or heat or all and then
they disintegrate from the 
flexing of the woofer. Without the foam to damp the woofer edges, it
sounds awful and I think some 
speakers can then over-drive the piston to where the speaker is broken.

-- Tom Fine

----- Original Message ----- 
From: "Robert J Hodge" <rjhodge@xxxxxxx>
To: <ARSCLIST@xxxxxxxxxxxxxxxx>
Sent: Wednesday, December 19, 2007 9:29 AM
Subject: Re: [ARSCLIST] headphones "break-in"?


Sounds like audiophoolery. Do speakers need a break in period? I don't
believe so. Unless you're addressing a foamed surround in which case the
break in period ends when the foam breaks down and they need to be
re-edged.

Partially kidding..

BH

-----Original Message-----
From: Association for Recorded Sound Discussion List
[mailto:ARSCLIST@xxxxxxx] On Behalf Of Tom Fine
Sent: Wednesday, December 19, 2007 9:14 AM
To: ARSCLIST@xxxxxxxxxxxx
Subject: [ARSCLIST] headphones "break-in"?

Hi All:

Do professional headphones work optimally if one allows a "break-in"
period or is this
audiophoolery? I don't know enough about headphone driver design to know
if a new pair benefits from
playing relatively loud radio content or pink noise for a few hours to
loosen up the mechanics.
Based on the fact that I listen to headphones at ear-healthy low levels,
this "break-in" would
probably be as much "exercise" as the drivers would get, but if they are
indeed "stiff" when new, it
might be beneficial, too, for low-level listening (ie potential better
dynamics response, better
sensitivity for low-level bass, etc)??

-- Tom Fine