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6
RCA
Input
and
Pass-Thru
Output-
These
RCA
jacks
allow
for
a
normal
Left
and Right channel signal input. Simplyconnect
to
the
source
unit
using
RCA
type audio cables, keeping them away from
power
wiring wherever possible.
On
the 4 channel
amplifiers
"Front"
and "Rear"inputjacks are present.
The
"Pass-Thru" output
allows
the signal
to
pass on
to
other
amplifiers.
The
Pass-Thru
output is unaffected by the onboardcrossover.
Input
Gain
Adjustment-
This control matches the preampstage
of
the Diamond
amplifier
to
your
source unit. This
is
NOT
a volume
control.
The
range is between 150mVand
5V.
High Level Inputs (0300.2, 0300.4, 0400.1) -This plug {included} is
for
use when the source
unit
does not have an
RCA
output.
Although this is a
popular
method
of
connecting a factory
car
stereo, some systems mayrequire additional adaptors.
The
far
left
side
of
the
plug
is the LEFTchannel; the
far
right
side is
for
the Right channel.
The
wire in the middle is
for
chassis
ground
ONLY
if
the system is experiencing excessive noise problems.
Crossover Selection Switch -This switch allows you
to
select the crossover.
Use
High Pass
for
midrange
or
high frequency
speakers.
Use
Low
Pass
for
subwoofers. In the OFFposition, the crossover
adjustment
knob has no effect.
The
D600.1
and
D1000.1
are onlyavailable
as
Low
Pass.
Crossover
Adjustment-
Use
this adjustment
to
select the crossover point.
Remember
that
your
choice
will
be
directed
to
High
Pass
or
Low
Pass depending upon the position
of
the adjacent switch.
Sub-Sonic
Adjustment
(0400.1, 0600.1,
01000.1)-
This control
allows
you
to
remove the unwantedsub-sonic frequencies
below
the tuning frequency
of
a
ported
enclosure. This helps
to
protect
the woofer from
over
excursion. (D400. 1Switchable (OFF/ON})
(D600.1, D1000.1, Variable From 16-60Hz}
Phase
Adjustment
(0400.1, 0600.1,
01000.1)-
This control allowsyou
to
adjust the "phase"so
as
to
align the subwooferin
"time"
to
the mids
and
tweeters. This is selectable
for
0
or
180
degrees. This is EXTREMELY useful
to
get the best and
MOST
bass out
of
your
system.
Bass Boost- This control adds 0
to
+12dB
of
boost
at
the frequency
that
the Bass Boost Frequency is
set
to.
Be
cautious when
adding boost
to
some
subwoofer
systems
as
theymaynot
be
able to handle the additional
low
frequency boost. In the
OdB
position,
no bass boost is added.
Bass Boost Frequency (0600.1,
01000.1)-
This is
to
adjust the specific frequency that
your
Bass Boost Control
will
boost (30Hz
-125Hz}.
Master/Slave
RCA
Input/Output
(0600.1,
01000.1)-
This
RCA
Input/Output is used in conjunction with the Master/Slave switch.
This allows one remote level control
to
control
multiple
amplifiers
(amplifiers
must
be
the same model}. This eliminates noise
and
the need to adjust the slave amplifier{s}, while increasing efficiency.
Master/Slave
Switch-
This
switch
is usedwhen connecting
multiple
amplifiers.
One
amplifier
should
be
assignedthe MASTER and
the other(s}
should
be
set
to
Slave. This
will
cause
all
of
the
amplifers
set
to
Slave
to
function identical
to
the MASTER amplifier.
One
remote level control knob
pluged
into the
amplifier
with the MASTER switch selected
will
now
control both amplifiers.
Remote Level
Adjustment
(0400.1, 0600.1, 01000.11- This
port
is
for
the remote level control (included}.
The
control is intended
to
allow
the
user
to
control the level
of
gain up
to
the maximum
adjustment
level
set
on the amplifier.
The
control does
not
add
additional boost,
it
only
attenuates the setting that is fixed
at
the
amplifier's
control panel.
Status LED's -These
lights
indicate when the
amplifier
is powered up
normally
and
when there is a protection fault. See the
'"Troubleshooting" section
for
details on what these useful indicators can
tell
you
if
there's a problem.
Power
Input
Connections -These connections are
for
input power, chassis ground, and remote turn-on.
Use
a
minimum
of
4
gauge wiring
for
power
and
ground
connections.
The
terminals
will
handle up
to
4 gauge.
Be
sure anywiring thatpasses through
metal
has a
grommet!
Power
Fuses (Except
01000.1)-
Standardautomotive type
ATC/ATO
fuses are usedon DiamondSeries Amplifiers. Always replace
with the correctfuse size. Neverinsert fuses
of
higher
values. Doing
so
will
voidthe
warranty
of
your
Diamondamplifier. Also include
a main fuse
at
the connection to the vehicle
battery
within
18
inches (45.7
mm}
of
the positive
battery
post. It is also
important
to
upgrade the connection between the negative
battery
post and the chassis
of
the vehicle. This
greatly
reduces possibilities
of
weak
electrical
"links"
in
the circuit.
SpeakerOutput
Terminals-
Connect
your
speakers
to
these terminals. Stereo connections are made
as
labeled. Bridgedconnections
use the
LEFT+
and
RIGHT-
as
the two connection,s.
The
2 and 4 channel
amplifiers
will
perform
into 2
Ohm
stereo loads
or
4
Ohm
bridged
loads.
DO
NOT
run
2
Ohm
bridgedloads on these
amplifiers!
The
D600.1 and D1000.1, are the only
amplifiers
in the
series capable
of
driving a load
as
low
as
1Ohm.
