112 “Flat Wound” and Full Range Systems
Series III FW and FR Manual.pub
hat are the Acme Series III Neo Systems?
112 "Flat Wound” and Full Range Systems are compact, lightweight, high
which, like the classic Acme Low B systems using 10” drivers, achieve superior low
end output, extension, and tra
sient response by manipulating the Thiele
Small parameters in order to optimize for these qualities at the expense of
The Acme Low B 112 "Flat Wound” and Full Ranges Systems use a special, propriety twelve inch woofer. They repr
sent a synergistic marriage of classic design principles, and cutting edge materials and techniques, executed with
on, attention to detail, and craftsmanship.
112 “Flat Wound” System is a one
way system, with no tweeter, and no
crossover. Its surprisingly
extended top end, for a twelve inch bass driver, makes it an excellent solution for a great many ba
in particular, who don’t need an extended studio
monitor type of high end, as in our full
is simplicity itself. No whistles, no bells. It is as near a perfect distillation to the essence of what a classic Helmholtz
Resonator can do. And it weighs 37 lbs.
alone witness to the ability of a modern neodymium woofer to fill a big
room with a big sound, with a
small, lightweight loudspeaker.
112 Full Range System is similar to the “Flat Wou
nd” System, but with a smoothed midrange, and an
output, high accuracy shallow horn tweeter. It is similar to the “Fl
at Wound” unit, but with high end which
extends to the limits of audibility. The Full Range System is a relatively low
n, high accuracy speaker, much in
the tradition of the classic Acme models, but with lighter weight made possible by the availab
performance neodymium magnets.
The Full Range System comes in a little heavier, at 38 lbs.
If I might rephrase that question, what, if anything, is lacking in the traditional Acme Low B systems, which might
addressed in these new models?
In a word, weight. The Acme Low B
2 system, based on the ten
inch woofers, is the same size
is loud, clear, uncolored, has a massive bottom end, and is as relevant today as it was when it was intr
1993. It is probably the second most imitated loudspeaker in the industry, after the ubiquitous Ampeg SVT. It was
named one of the “Ten Most Important Products of the Decade” by Bass Player Magazine, has a fanatical following
d, and is not in need of substantive improvement. So why bother?
Neodymium magnets were not available in 1993. They are now. My
back is older. So is yours. How much heavy stuff
do you need to carry around in order to make music? As little as possible, tha
The first choice would have been to introduce the traditional models using a ten
inch neo woofer which would be
direct replacement for my classic woofer. But no such woofer is available yet. It may be later. I haven’t given up. The
ional Acme systems will continue to be available, more
less unchanged, and when and if such a woofer is
In the meantime, Eminence has a template for a truly great twelve
inch neo woofer, and the willingness to modify it to
my specifications. The resulting bass driver is unique in the world, and for people who are willing to use more power
a less efficient loudspeaker, provides an opportunity to fill a room with loud, extended bass using a system
mpactness and light weight.
Most companies in this business introduce a great many new models, year in and year out. We don’t.
had a compelling reason to do so before. Neodymium magnets provide one.
The “Flat Wound“ System was the first model
to use this new woofer. The pleasing nature of the woofer’s high end
was discovered, almost by accident, en route to a standard
system. But when we heard how
way cab sounded, we knew right away that it worthy of
The Full Range System realizes the full potential of the Acme twelve
