Artificial Speaker Aging
Bear with me folks, this might be a fairly lengthy blog! A few months ago I received this email from a
very knowledgeable fellow, Rasmus in Denmark. Read along, you’ll be glad you did:
___________________________
Hi
Vaughn,Thanks for all you efforts - and thanks for you pushing speaker business in
the right direction.
Long story short, I have been at fender guy all my life
and a tone seeker for about 20 years. Been tweaking at noodling with amps, pedals,
pickups etc. etc. Recently I have been through at seek for the right 10"
for my vintage 65 Princeton Reverb, and been buying: Eminence 102, 105, Jensen
RI P10R, WGS Vet10, WGS G10a.
In
general I liked your speakers best but.... all I tried is too loud for finding a
sweet spot at home studio sound levels. It seems all brands are trying to
increasing effeicacy which is not necessarily good for everyone! This week I
went bazurk and did a chemical ageing with acetone - fabric softener - and mild
sandpaper treatment on the cone of the Jensen p10r - which I considered the
worst speaker among them. And now it sounds just FANTASTIC. Breakup at low
level, good bass, articulate etc. etc. All positions on a strat sound right.
This amp has turned into something I wouldn’t even have dreamt of. I don’t know
if this is common knowledge among you guys, but to me it was really a
breakthrough tone wise. Actually it makes good sense, because by thinning and
softening the membrane it moves much more freely and tone becomes dynamic and
nice for the ears. And natural breakup at home - NICE.
Cheers,
Rasmus
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That got me to thinking! I remember
doing this same trick on a terribly stiff Jensen repro a few years back, also
using the acetone based fabric softener.
My results were not as good as Rasmus’s, so I enquired as to just
exactly what his technique was. I think
we can all benefit from his answer:
________________________
Hi
Vaughn,
I
think the key to my success with the Italian Jensen is to weaken the surround,
not sure the acetone/fabric softener is all that important. In addition to
sandpaper, I worked the cone surround good with my nail. So I really softened
it being quite physical. If this should be recommended to anybody they should know
that you easily destroy you speaker by doing this. But the reward is really
worth taking the chance I think. At least with the Jensens RIs. The speaker
cannot be played at high levels because it goes into extreme flapping. But
before that there is now a very useful interval of tone heaven - which is
perfect for at-home-use. You see, I have spent a fortune on overdrive pedals in
my life, but this is IT. (Much of the secret of many great recordings is much
more in the speakers than many of us believe.)
Thanks
for taking time to discuss,
Rasmus
____________________
Interesting! I was afraid to go so
far as physically trying to scrape, and thereby weaken/soften the
surround. I merely applied the acetone to
the surround … and even then I was afraid to use very much. I got rid of that stiff Jensen as quick as I
could … but if I ever encounter another equally stiff cone, I think I just
might try the combination of chemical and physical loosening of the surround!
Of course there is also the age-old method of just blasting the crap out of
a speaker for many hours on end to get it to loosen up. I remember trying that trick in the garage. I had some SRV on a loop alternating with
sine-wave sweeps blasting at about full-power on a 60-watt driver. Let’s just say that my wife is not a fan of
that method, if you know what I mean. Yea,
now that I think about it, I DEFINITELY like Rasmus’s idea better :-)
See all y’all next time around. Stay
loose!
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