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1155
© 2004 Directed Electronics, Inc
1.
IInnppuutt SSiiggnnaall
- Connect these RCA
jacks as described in the
Front
Panel Connection
section of this
guide.
2.
SSllaavvee//MMaasstteerr SSwwiittcchh
Set the slave/master switch
on the master amplifier to the
MASTER position.
Set the slave/master switch
on the slave amplifier to the SLAVE
position.
Setting the slave/master
switch on both amplifiers will auto-
matically set the I/O RCA jack
configuration according to each
amplifiers slave or master designa-
tion.
NNOOTTEE::
Amplifiers in this combination can only be
connected in matched pairs. Multiple matched
pairs may be added to drive separate subwoofer
loads in a given system.
3.
PPhhaassee SSwwiittcchh
- Set the phase
switches of all synced MASTER
amps to 0°. Set the phase switches
of all synced SLAVE amps to 180°.
The master and slave amps must be
set to the opposite phase mode in
order for External Synced Bridged
operation to work.
4. In order to achieve safe, optimal
performance, the LPF, Bass EQ, and
Subsonic Filter controls on all
synced amps must be set to the
same position.
5.
SSiiggnnaall CCoonnnneeccttiioonn
- Connect an RCA
cable between the OUT RCA jacks
of the Master amplifier and the
INPUT RCA jack of the Slave ampli-
fier as shown in Figure 6.
6.
SSuubbwwooooffeerr SSppeeaakkeerr CCoonnnneeccttiioonn
- In
this amplifier combination the
Subwoofer speaker terminals of
both amplifiers drive common
subwoofer(s). Use the following
speaker connection diagram when
connecting the subwoofers to the
amplifiers. Connect the amplifiers
speaker terminals to any combina-
tion of one or more subwoofers that
results in a nominal impedance
between 2 and 4 ohms. DO NOT
connect loads of less than 2 ohms
when connecting to amplifiers in
the External Synced Bridged combi-
nation.
WWAARRNNIINNGG::
Two wires of 12AWG minimum must be
connected between the negative sub out termi-
nals of the master and slave amplifiers.
WWAARRNNIINNGG::
The amplifier’s gain control is bypassed
completely in SLAVE mode. Do
NNOOTT
move the
MASTER/SLAVE switch to SLAVE position when
the amplifier is connected and playing. Do
NNOOTT
connect any signal source to the amplifier in
SLAVE mode that exceeds 200mV.
EXTERNAL SYNCED BRIDGED CONNECTIONS/SETTINGS