Owner's Manual

~
Infinity'
Infinity
Reference
REF-704a/REF-4555a/REF-551
a
HARMAN
Infinity
Reference
REF-704a/REF-4555a
/REF-551a
Quick-
Connect
Guide
IMPORTANT: This quick-connect guide contains information about mounting
and
connecting your
amplifier.
For
complete installation,
connection, setup and
adjustment information,
download
the
full
owner's
manual
at
www.infinityspeakers.com.
1.
Mounting
the
amplifier
IMPORTANT:
Disconnect
the
vehicle's
negative(-)
battery
terminal
before beginning
the
installation.
• Always
wear protective eyewear when using
tools.
Check
clearances on
both
sid
es
of
a
planned
mounting s
urface.
Be
sure
th
at
sc
rews or wir
es
will
n
ot
punc
tur
e brake
lines, fuel lines,
or
wiring harnesses,
and
that wire routing
will
not interfere with
the
sa
fe
vehicle
operation.
•
Wh
en making
el
ec
trical
connections,
make s
ur
e
th
ey are secure a
nd
properly insulated.
If
you
must
replace
any
of
the
amplifier's
fuses,
be
sure
to
use
the
same
type
of
fuse and current rating
as
that
of the
original.
To keep the
amplifier
coo
l,
c
hoo
se a
location
that
pr
ovides enough air
circulation,
such as under a seat
or
in t
he
trunk.
Do not mount the
amplifier
with the h
ea
tsink f
ac
ing downward, as this interferes
wit
h
coo
lin
g.
Mo
unt
th
e
amp
lifi
er
so
th
at it
wi
ll
not
be
damaged by the feet of backse
at
passengers
or
shifting
ca
r
go
in
th
e trunk, a
nd
so
tha
t
it
remains dry.
Using the
amp
lifi
er
as a
t
emp
lat
e,
mark the
locations
of the mounting
hol
es
on
the mounting surface.
Drill pil
ot
holes
in
th
e
mount
ing surface.
•
Attach the
amplifier to
th
e mounting s
urf
ace
with
four
app
ropriate mounting
sc
rews (not
in
cluded).
Recommended: #8
Phillips-h
ea
d sheet
met
al screws.
NOT
E:
You may find it more
co
nvenie
nt
to
make
a
ll
of the connections to
the
amp
lifi
er
before you p
er
manently
mount it.
2.
Power
and
ground
connections
A
IO
o
OJ
.
...
n-
OfCI
jQ
o
OJ
1
::,-~
.
wire
Loosen screw
Tighten screw
A
Use a
Phillips
sc
re
wdriv
er to
loosen
eac
h
co
nn
ec
tor's set screw,
in
sert
th
e bare
wire, and tighten the set
scre
w
to
sec
ur
e the wire in the
co
nnector.
B. Connect a wire (minimum 1
OA
WG)
directly
to
the
batt
ery's
po
sitive
(+)
terminal.
C.
Ins
ta
ll
a fuse
ho
l
der
f
or
a
60
A fu
se
(REF
-7
04a
a
nd
REF-
551
a)
or
90A
fuse
(R
EF
-4555a) on this wire within
1
8"
(46cm)
of
th
e
ba
tt
ery's
(+)terminal.
Do not
in
stall
the
fuse
in
th
e hold
er
until
you have
mad
e
all
wiring
co
nn
ec
tions.
D.
Route
the
power wire
to
the
amplifier's location
and connect it
to
the
amplifier's
+
12V
terminal.
Be
sure
to
use
appropr
iate
grommets
whenever routing wires
through the firewall
or
other
sheet
meta
l.
IMPORTANT:
Fai
lure
to
adequately
protect the
po
sitive wire
from
potential
damage
may
resu~
in
a
veh
icle
fire.
E.
Connect a
wire
(minimum
1
OAWG)
from
the
am
pi
mer's
GND
terminal
directly
to a
solid
point
on
the
vehicl
e's
chass
is.
Use
sandpaper to
cl
ear
the
paint
from
the
meta
l
surface
at
the
chassis
locatio
n.
Use
a star-type
lock
washer
to
secure
the
wire.
F.
Connect a
wire
(
18AWG)
from
the
ampl
i
fie
r's
REM
terminal
to the
ste
reo's
rem
ote turn-on
lead,~
available.
Pow•r
connectors
ro:
;
@M
~
G
-
~;
f~,-
~
IO
o
O!
~~!
JX~=~
....
•-•"
T~n
-
on
F
T
11
~~~~~~
~~
:::::
(
0
.
82mm~
wn
_j
D
T
>f
1DAWO
{!
.
26mml)
Wire
18"
{
46cm)
r
E
Chessls Ground
"'F
lb•remetal)
>11
OAWG
(5.2&mm")
W,...
3. Reference REF-704a
speaker connections:
4-channel
operation
Always
connect
the(+)
speaker
terminal
on the
amplifier
to
the(+
)
te
rminal
on the
speaker, and
the(-)
speaker
terminal
on the
amplifier
to
the
(-)termi
nal
on the speaker.
IMPORTANT:
Make sure
the(+)
and(-)
bare wires
do
not
touc
h each
ot
her
or
the
ot
her termin
al
at
bo
th
th
e amplifier terminals
a
nd
speaker
terminals.
Touching wires
can
ca
use a sh
ort
circuit
that
ca
n
dam
age t
he
amplifier.
Minimum speaker
imp
edan
ce
: 2 ohms each
Left
front
speaker
Right
fro
nt
speaker
®®®
--
~
~
I~
f~~
~~
·
]~
~
,,
~
,,
;;;
·
:~
}
2
Left
rear
s
peaker
Right
re
ar
speaker
4.
Reference
REF-704a
speaker
connections:
3-channel
operation
M
inimum
speaker impedan
ce:
2 ohms
eac
h
(le
ft
and
r
ig
ht sp
eakers
);
4 ohms
(s
ubw
oofe
r)
Rig
ht
fr
ont
spea
ker
•6
v
.o."o
• "
. o-.v
.._
• •
I
o
"•
"<>
..
o "
I '
..
.......
..
· ,
-
·---=
.
~
.
-
·
r
"'
4-
o
hm
!lubwoofer
N
OTE:
You
c
an
con
ne
ct two 2-ohm subwoofers in
se
ries
to mainta
in
the requir
ed
4-o
hm
mi
mim
um
impedance for the subwoofer
ch
ann
el.