Acoustat Model 1.1 Brochure

Page 1

The concept oi the electrostatic
loudspeaiiewr ESL lss'mpie andgoes
back about sixty years The idea 5 to
useeiectroeatic toroestomoveavary
low mass daphtogm with even pres-
sue over its ertthearecl The would
appication at this princpie can give
comiderabiesonicbenefltsovercon
ventionai high mass loudspeaker
cones or diaphragm it promises tul
range coverage without croueverx
with very low distortion and with

The promised ESL: stinuated de-
sigrtentormarwvearsandaaoutao
yearsagoodvancesinmateriaand
technology permitted the first corn-
mercialmitatoappemUniortunate-
Miecmoiogvaithatpertodmtricted
those units to limited range devices
unchashueetersortounitswiihgreat-
ivtestrtctedsoundoutpmcapmltiet
Attemptstodrive them hard resulted
In internd breakdowns These earty
mitslndcatedtheptornlseotfisumt
were not wccesitul In wrmomttrq
thew Irnitaitons.

However. In the past 15 years
Acmetothaipioneeredhoveroom-
WtheaoflacieewflchtacedtheESL
mtaihasdeveiopedbreaiodawn-
prooipaneiswiichcanbecomohed
NovariOtecanfiguatloreiordtierent
loudspeaker models-and Aooustat
has developed an irtteriacng ele-
mentvvtichpermiiscomentiarutiw
wwwtieobdtvethemtat
toconcerthalsoundpressureleveis

TherangeotAcoustatmodettdso
mwincludesasndlemmverpriced
speaker. the Modei One which uses
odvnarnlcwooterbutprelervesthe
eiectrostaticprincipiemeraibutthe
lowesttrequenclesSOnowAcoustat
tailor: a toll choice of electrostatic
loudspeaker systems-miners
that are the culmination at many
yeanoideveiopmentwhichwosm-
pied with the bold premise that the
theoretical promise of Electrostatic
Loudspeakers could be brought to
wcceestul practicaifrutlan

Atlastthisldedmusictrammoerk
noiongeragodoiit'etutuebutls
hetetodayhamanagedaiedzeand
pricerangethatwiilappealtoevery
mmlcloverandiaevervaudophle

'Andltlsnotantvsonicdemit

islelWetothepointotbeingvtrtuat-
tylndestructlbie

What makes the
Acoustat
Speakers unique?

ELECTROSTATIC ELEMENT:

The Acoustat pure electrostatic
tpeaiten(0ne ¢ One Three. Two +
Two) and the Professional Series-
(Modeis SIX and EIGHT) utlize tui-
rangeeiementeiectrostat'lcpanelsto
teproducealtreqrencieshtheoud-
hie range without splitting the fre-
quehcv lpoctrum with separate
driven and crossovers. The ideal
methodoireproduclnamnicatwave
iorrnswoudbetoemctiyreversethe
process at the recording mlcro~
phoneand for that matter. the tul
rangeeiernentimctionoithehunm

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mum-u:
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rum-AI K we
rot mum

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Only with the electrostatic tram-
OJcercanthisidedmethodbered-
iaed. With the subwootered version
(MadeiOne)mastotthbk1edbpre-
aervedbecaueoilheiowctouover
tremencycithewootet,

Each speaker contdns one. hive
three or tour electrostatic panels
wtichareanoiedtorhorizontd disper-
sion but electricaIy they perform as
a we unit. AI are driven full range
in the pue electrostatic versions and
neartr' tul range in the Model One

lDW-MASS RADIATOR WITH
INTIMATE DRIVE:

Again the human ear. the micro-
phone. and Acoustot speakers al
utllze a very low mass diaphragm, h-
ttnateiy driven over its entire surface
The diaphragm oi the Acoustat
speaker is orlv .00065 Inches thick.
andwelgteasnuchosaneqdvaient
sine volume of air only 7 mllmetets
thlcidTthperlightdophraqnhthen
drivenoveritxentirewrtacebythe
audaltgruThhgivesthewdlodgnoi
severunlonti'nesrnorecontrolover
all motionitmispossible witha multi-
way cone system and several hun-
dred thousand tine: more control
than a planar magnetic or ribbon
typelpeaiuermhetethe audiosignd
force is only present at the voice
coils-not on the actud diaptvagm
that moves the or.

mammalian: l

rwneancmymh'dtwmamw
Wmmfldoolthem
memmmifidr
JMWWWWWL
mm ;
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Page 2

"t'rUlli itll? Mu,

TheTWO + TWOnepresents thepin-
nacle of Acoustafs pure electrostatic
technology for the home (given an
average to moderately large listening
envirormenl) Critically acclaimed for
the: openness transparency. ettlclen
cy. dynamic range bassrasparse and
sheer musicality they have quickly
become the reference standard for a
majority of reviewers and critics offne
audio equipment and recordings
They provide the ideal vertical line
sauce unltorm horizontal dispersion
and integrate beautifully lnta any
room with a standard eight toot
ceiling

Never before has a speaker offered
so much quality at such a reasonable
cost. in such a versatile size

\ilflllii, lHlltL

The Acoustat Model THREE is the
cwnnationol'TOyearsofexperlence
in design and constructional state-ol-
the-ort electrostatic speaker technol-
ogy The Model Three features a
unique wved array" panel design
which mahtdns optimal treqrem
and phase response across a broad
Istener arc The output of the Model
Three prec'sety and accuratelymnors
the input signal, without crossover
phase stuff or typical cone driver
degradation. The Model Three 3 best
matchedtoal5'x20roam(orolher
loge room with celilgs lower than 8')
where it will deliver superb bass
response and 0 do (program the
ferial Peaks) somd pressure level wtfh
a minimum of 70 watts per channel.

Elis; lil \ W?

.i

In designing the Acouslat Model
ONE + ONE. our reference was Itve
music-The dthiate test. Becmse the
One + Oneistreefromthecfitartlons
and coloration: of conventiond mum-
way box-type speakers. music
emerges with al the hatmoncs and
sonic detail at the original perform-
ance The One + Ono's revolutionary
floor-to-ceing coherent ine source
array recreatesthe height and depth
of the concert hot with modern unmat-
ched by the most exotic designs at
an amazingly affordable price

\Oiti i UNl,

The single panel. six foot tall. Mode
ONE is Acoustats smalest speaker, l
is the ideal electrostatic tor opartmer
dwellers and others whose Istenlrs
rooms are in the small-moderate slzr
category. it is a tact of the physics c
the electrostatic transducer that a
the size of the overall panel are:
decreases one reaches a point when
sub-woofer augnentation is desirabli
to maintain satisfactory bass responsr
efficiency and dynamic authorltt
Whie the frequency range coverer
by the subvwoofer comprises (:2
ratio) only 3 or 4% of the trequenc
spectrum to handle that last 3 or 49
electrostaticalty requires a greatly lr
creased panel area and a more corr
piex and expensive transformer (try:
system. Therefore the Model One is r
hybrid system utilizingatO dual volc-
ooil floor-firing dynamic suowoofe
The woofer is mounted in an 80.5 lte
enclosure The 15 inch woofer cube
firlshed in an attractive teak mien
(other finishes available) ant
mountedoncasterstoreaselnplace
meni. The woofer cone itself is mad
of polypropylene and exhblts for let
cone break-up than conventionr
drivers The Model One's crossavs
point is well below the cruel:
midrange where crossovers and mu
tipie drivers do the most damagr
hence the mldrange coloration an

_ sonic degradation that are typical <

conventional two»way speaker sy:
terns are totally eliminated.