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Altec Lansing A6 Series User Manual

Altec Lansing A6 Series
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Unpack
the
8256X
cabinet.
This
cabi-
net
is
sealed
at
the
factory;
do
not
attempt
to
take
it
apart
or
remove
the
back
panel.
Turn
the
cabinet
so
the
short
side
with-
out
fiberglass
lining
is
up;
drill
a
hole
in
the
top,
avoiding
the
diagnonal
brace.
This hole
should
be
just
large
enough
to
pass
four
wires
through.
the
second
loudspeaker
as
shown
in
Figure
2.
Feed
the
attached
red
and
black
wires
through
the
hole
drilled
in
the
top
of
the
cabinet
(Step
2)
or
through
one
of
the
bass
reflex
ports;
install
the
second
loudspeaker
in
the
remaining
baffle
opening
and
secure
it
with
the
eight
screws
packed
with
the
loudspeaker.
A6
SERIES
LOUDSPEAKER
SYSTEMS
12.
13.
14.
15.
16.
connectors
from
these
wires
and
replace
them
with
those
packed
with
the
288-8K.
Place
the
N1285-8A
on
top
of
the
cabi-
net,
facing
left
or
right;
if
the
speaker
wires
are
routed
through
a
port
in
the
baffle,
put
the
N1285-8A
on
the
same
side.
Set
the
frequency
switch
of
the
N1285-
8A
to
500
Hz
or
800
Hz.
Wire
the
N1285-
8A
according
to
Figure
2.
If
the
amplifier
to
be
used
cannot
safely
drive
a
5-ohm
load,
wire
the
sys-
tem
as
shown
in
Figure
3,
using
a
15067
autoformer.
If
you
wish
to
attach
the
N1285-8A
to
the
cabinet,
let
the
front
panel
of
the
network
hang
over
the
side
of
the
cabinet;
drill
or
punch
twao
pilot
holes
and
install
two
wood
screws
to
secure
the
network.
Decide
how
much
power
loss
is
accept-
able
in
the
line
between
the
amplifier
and
the
loudspeaker;
select
a
wire
gauge
according
to
Altec
Lansing
Technical
Letter
265A.
Attach
the
wires
to
the
input
terminals
of
the
7.
Lift
the
cabinet
upright
and
place
it
in
N1285-8A
network.
NOTE
the
position
it
will
occupy.
Do
not
drill
this
hole
if
the
loud-
17.
Adjust
the
tilt
of
the
HF
horn
for
great-
speaker
is
to
be
installed
behind
8.
Unpack
the
two
brackets
and
driver
est
uniformity
of
direct
sound
in
the
the
screen
in
a
motion
picture
cradle
from
the
hardware
kit.
Assemble
audience
area;
loosen
the
nuts
and
theatre.
them
with
two
bolts,
two
lockwashers
raise
or
lower
the
driver
cradle
as
and
two
7/16”
nuts.
See
Figure
1.
Set
necessary;
retighten
nuts.
The
interconnecting
wires
are
packed
the
assembly
on
top
of
the
cabinet,
approximately
centered
with
the
driver
18.
Operate
the
loudspeaker
and
adjust
Locate
the
four
longest
wires
(one
red
cradle
toward
the
rear
of
the
cabinet.
the
H.F.
LEVEL
control
on
the
N1285-
wire,
one
green
wire,
two
black
wires).
8A
until
the
best
spectral
balance
is
9.
Upack
the
288-8K
HF
driver
and
the
HF
achieved.
Unpack
the
two
3156
LF
loudspeakers.
horn
(MRII564,
MRII594,
or
MRI15124).
Attach
a
green
and
black
wire
to
the
Place
the
gasket
packed
with
the
19.
If
there
is
sufficient
front-to-back
terminals
of
one
loudspeaker.
See
288-8K
around
its
sound
exit
hole;
clearance
around
the
loudspeaker,
Figure
2.
install
the
288-8K
on
the
horn,
securing
adjust
phasing
of
the
drivers
according
it
with
the
three
lockwashers
and
9/16”
to
Altec
Lansing
Applications
Note
9.
Lay
the
8256X
cabinet
on
its
back
nuts
provided.
This
will
require
the
front
lip
of
the
HF
panel.
Mount
one
3156
loudspeaker
in
horn
to
overhang
the
front
edge
of
the
one
baffle
opening
of
the
cabinet;
10.
Engage
the
lip
flange
of
the
horn
in
the
cabinet
about
7”.
attach
the
loudspeaker
with
eight
screws
packed
with
the
loudspeaker.
Note
that
the
flange
of
the
loudspeaker
is
outside
the
cabinet,
with
the
frame
and
magnet
structure
protruding
into
the
cabinet.
Route
the
green
and
black wires
of
the
loudspeaker
through
the
opposite
baf-
fle
opening;
attach
the
wires
to
the
second
3156
loudspeaker.
Also
attach
red
and
black wires
to
the
terminals
of
11.
two
ears
of
the
mounting
brackets
and
swing
the
driver
down
into
the
cradle.
CAUTION
The
magnet
will
pull
the
cradle
toward
the
driver
as
it
is
lowered
into
position.
Attach
the
short
black
and
white
wires
packed
with
the
N1285-8A
network
to
the
terminals
on
the
288-8K.
It
will
be
necessary
to
remove
one
pair
of
crimp
20.
21.
After
locating
the
horn
position,
mark
location
of
the
four
holes
in
the
mount-
ing
brackets;
drill
or
punch
pilot
holes
in
the
cabinet
for
the
four
wood
screws
provided
in
the
hardware
kit.
If
it
becomes
necessary
to
replace
the
diaphragm/voice
coil
assembly
in
the
288-8K
driver,
use
a
23763
diaphragm;
follow
service
instructions
in
Altec
Lansing
publication
42-02-035593.
Specifications
and
components
subject
to
change
without
notice.
Overall
performance
will
be
maintained
or
improved.
ALTEC
42-02-035639
42-07-035639
REVISION
2
LITHO
IN
U.S.A.
1091-1.7M
ALTEC
LANSING
CORPORATION
LANSING
a
MARK
IV
company
10500
W.
Reno
Ave.,
Oklahoma
City,
OK
73126

Other manuals for Altec Lansing A6 Series

Preview: Specification Sheet
Specification Sheet2 pages
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Altec Lansing A6 Series Specifications

General IconGeneral
BrandAltec Lansing
ModelA6 Series
CategorySpeaker System
LanguageEnglish

Summary

Altec Lansing A6 Series Loudspeaker System Installation

Cabinet Unpacking and Preparation

Instructions for unpacking the 8256X cabinet, drilling a wire hole, and preparing it for loudspeaker mounting.

Loudspeaker Mounting and Wiring

Details on unpacking and mounting the 3156 LF loudspeakers into the cabinet, including wiring connections.

Bracket and Horn Assembly

Procedure for assembling mounting brackets, driver cradle, and attaching the 288-8K HF driver to its horn.

Electrical Connections and Network Setup

Guide for connecting the HF driver to the N1285-8A network and setting frequency switches.

System Adjustments and Calibration

Instructions for adjusting HF horn tilt, HF level, driver phasing, and mounting the system.

Maintenance and Replacement Procedures

Information on driver reconing and speaker system repair.

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