Acoustat Spectra 1100 Owners manual
Table
Introduction
of
Contents
OWNER’S MANUAL
SPECTRA
1100
ELECTROSTATIC
LOUDSPEAKER SYSTEM
Break-In Period
Using This Manual Page
Assembly
Getting Started/assembly
Disassembly
Audio Input
Power imput
High
Frequency Contour Switch
spiked
The Listening Environment
Room
Wall Behind The Speakers
The
Position
Distance From Rear Wall
Distance From
Toe-In and Distance Between Speakers
Area Between The Speakers
Feet
Size
Orientation
In The
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&
Installation
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of
The Speaker System Within The
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Room
Room
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Side
Walls
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A Division
613
Tempe
Acoustat
of
Rockford
South
Rockford
Arizona
602 . 967 . 3565
Corporation
65281
Drive
USA
Additional
Specifications
Impedance Curves
Amplifier Recommendations
Theory
Warranty Statement
In Case of Difficulty
Electrical Schematic
Information
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and
Practice
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of
Spectra Operation
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14
15
17
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20
21
Congratulations on
Technology
I
INTRODUCTION
I
Break-in
Period
your
purchase
of
Acoustat Spectra
ASSEMBLY & INSTALLATION
Getting
There are a
you trouble later:
Started
few
warnings we
will
make now which will save
Your new Acoustat budspeaker requires a break-in period
before
speaker
energized, and will
characterized by a lower
bility, and a generally "flat" dimensionality.
To
system at moderate volume levels. The most dramatic im
provement will occur within the first
although
hours
The
the system playing continuously) or may be accomplished
over a number of playing sessions.
non
broken
period,
ments of being re-powered.
I
Using
We all have a tendency to read instruction manuals only
something doesn't work as intended. However, the assem
bly andinstallatiinof the Spectra loudspeaker, though simple,
may not
your enjoyment of this loudspeaker, please read through the
entire manual before beginning.
full
performance may be realized. Eyen though the
will
begin to play within a few
sound quite good, a brand
efficiency,
"
break-in' the speaker, simply play
slight
improvements may be noticed even
of
playing time.
break-inperiodmaybeconductedallatonce
occurs
only when the speaker
-
in speaker has been de-energized for an extended
it
will
again reach full performance within a few mo
This
Owner's
be
obvious at first glance. Therefore, to maximize
Manual
moments
new
reduced
20
This
is
dynamic
music
through the
hours
of
(i.e. leaving
break-in phenome-
brand
new.
speaker
operation,
of
being
capa-
at
Even
50
if
is
a
1)
Spectra arrays are
and RIGHT arrays.
is
Each
the top wood trim, as well as a colored dot on the bottom
surface of the array: RED for right, and GREEN for left. The
two
-
-
2)
3)
We
identified by a small label located on the rear edge of
woofer boxes and two interface chassis are IDENTICAL.
The cloth arrays are easily soiled, and are very prone to
picking up
plastic bag should be left
brought into final installed upright position
Spectra's sectored operation requires a complex connec
tion-set from interface
making the connections.
will
lint
repeat these warnings when appropriate.
MIRROR
from being laid on a carpet. The protective
IMAGE, i.e. there are LEFT
on them until the arrays are
lo
array. Care is required when
-
Assembly
if
-
Tool Required: Large
1)
Gently
box.
grille
Refer to Figures 1 and 2 for the following steps.
pry
off
It
is held on by four plastic fasteners. Set aside the
frame for later re-attachment.
(#2)
Phillips Screwdriver
the grille frame from the front of the woofer
-by-
This manual contains step
bling your Spectra, installation in the listening environment,
and hook-up to the amplifier. We have also included addi
tional information in an attempt
monly asked questions.
1
step information for assem
to
answer
those
most
com-
-
-
2)
Remove the
sure, and set aside. These bolts secure the electrostatic
array
as well the front edge of the interface chassis.
two
large
bolts at the top-front of the enclo
2
-
3)
Remove and set aside the
screws on top of the interface chassis,
two
small Phillips-head
at
the outer
rear edges.
4)
Slide the chassis rearward about
front edge. Remove the plastic
under the chassis. Plug in the white
2",
and lift-up the
parts bag located
connector to
the mating receptacle on top of the woofer box.
Note that this connector
is keyed
so
that
only one way. Insert fully until it snaps.
it
inserts
9)
Again lift-up the front edge of the interface chassis, and
the 5 colored jacks (RED, BLUE, BLACK, YEL
locate
LOW, WHITE) on the printed circuit board. Plug the array
wires into these jacks, PERPENDICULAR TO THE
BOARD, following the color code. Refer to Figure
10)
Slide the interlace chassis forward, making sure that the
array wires are not pinched or strained.
11)
Insert the remaining large bolts in the upper prong holes,
thread into the interface chassis, and tighten.
-
3.
5) The
6)
parts bag should contain
(1)
Wall Transformer
(2)
1/4"
-
20
x
2
"
Bolts
(2)
1/4"
-
20
Nuts
(2)
1/4"
Washers
(4)
Spiked Leveling Feet
the
following:
Place the electrostatic array in position on the
front of the woofer box, with the wires hanging
down in front of the woofer, and the seam in the
grille cloth toward the rear.
It
is
recommended that
an assistant support the array in position until
step
#7
is completed.
Note:
If
the speaker
is
being assembled near
final location, you may want to choose the appro
priate
Left
or Right array.
7) lnsett a large bolt in each of the LOWER holes
located on the prongs extending from the array,
and adjust the position of the array
so
that the
screws insert fully through the front of the woofer
box.
Place a washer and nut on the
rear
and
tighten. The array will now be self-sup-
bolts
from the
potting.
8)
Feed the array wires through the hole in the front
of the woofer box, with the black tubing covering
the wires between the array and hole.
its
12) insert and tighten(but do not overtighten) the Philips head
screws on top of the chassis.
13)
Re-install the woofer grille, aligning
it
to the front of the
woofer box by first lining up the top edge of the grille
against the plastic trim plate at the bottom of the array.
Then seat the fasteners by pressing each of the four
corners.
14)
Repeat steps
We recommend
storage space
1-13
for the other speaker.
that
you
keep all the boxes
is
limited, keep all of them for a while until you
if
possible.
If
are satisfied that both speakers are performing properly.
Experience has shown that
is
-
ever needed,
interfaces to Acoustat. Our packaging materials are top-of
the-line and much
it
is
most likely to involve sending ONLY the
more
if
service or a factory modification
protective than most home-made
arrangements. (See In Case of Difficulty.)
Disassembly
Should your Spectra ever require disassembly for the pur
pose
of moving or repair, simply follow the assembly instruc-
tions
in reverse order,
After unbolting the interface chassis,
necting any internal wires, the speaker must
of
Speaker
with
one very important exception.
but
BEFORE discon
be
discharged.
-
-
(cont.)
5
6
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