Monoblock Amplifier

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PA 12V AMPLIFIERS
ENGLISH
PARALLEL SYNCED GAIN
CONNECTIONS/SETTINGS
Refer to Figure 5 for wiring details.
1. Input Signal—Connect these RCA jacks as described
in the Front PanelConnection section of this guide.
2. SLAVE/MASTER Switch—
• 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 automatically set the I/O RCA
jack configuration according to each amplifier’s
slave or master designation.
NOTE: One master amplifier can control up to three SLAVE
amplifiers in this combination. Multiple identical MASTER/
SLAVE combinations can be added to any given system.
3. Phase Switch—Set the phase switches of all synced
amps to the same position (all at 0° or all at 180°).
4. 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. Signal Connection—Connect an RCA cable between
the OUT RCA jack of the master amplifier and the
SLAVE IN RCA jack of the slave amplifier as shown
in the Figure 5.
6. Subwoofer Speaker Connection—In this amplifier
combination, each amplifier must drive its own separate
subwoofer(s). Connect the speaker terminals of each
amplifier to any combination of one or more subwoofers
that results in nominal impedance between 1 and 4
ohms. Make sure that each amplifier sees the same
speaker impedance.
WARNING: The amplifier’s gain control is bypassed com-
pletely in SLAVE mode. DO NOT move the MASTER/SLAVE
switch to SLAVE position when the amplifier is connected
and playing. DO NOT connect any signal source to the
amplifier in SLAVE mode that exceeds 200mV.
FIGURE 5—PARALLEL SYNCED GAIN (PA600.1/PA1200.1)
SLAVE AMPLIFIER
MASTER AMPLIFIER
COMBINING AMPLIFIERS
The Polk 600.1 and 1200.1 subwoofer amplifiers have
the capability of connecting two or more amplifiers of
the same power rating together in a master/slave
combination for increased power with accurate level
matching. They are the Parallel Synced Gain and
External Synced Bridged combinations.
WARNING: DO NOT attempt to combine amplifiers of
different power ratings. These amplifier combinations
work correctly only if the MASTER and SLAVE amplifiers
are identical models.
PARALLEL SYNCED GAIN
In this MASTER/SLAVE combination the master amplifier
pre-amp controls remain active and the slave amplifier
pre-amp is bypassed. This allows the master amplifier
to control gain, filter, and sub-level on both amplifiers.
This combination allows the amplifiers to drive their own
separate subwoofer(s) while being synced together via an
in-phase audio pre-amp signal from the master amplifier.
Wiring connections to the amplifier subwoofer outputs
in this combination should be standard in-phase configura-
tions, creating a parallel speaker connection. (Refer to
Parallel Synced Gain section of this guide for amplifier
and speaker connection diagrams.)
NOTE: One master amplifier can control up to three slave
amplifiers in this combination. Multiple identical MASTER/
SLAVE combinations can be added to any given system.
EXTERNAL SYNCED BRIDGED
In this MASTER/SLAVE combination the master amplifier
pre-amp controls remain active and the slave amplifier
pre-amp is bypassed. This allows the master amplifier to
control gain, filter, and sub-level on both amplifiers. This
combination allows the amplifiers to drive common sub-
woofer loads while being synced together via an out-of-
phase audio pre-amp signal from the master amplifier.
In this subwoofer wiring configuration the master ampli-
fier sends the positive signal to the subwoofer while the
slave amplifier sends the negative signal, making an
externally bridged speaker connection. (Refer to External
Synced Bridged section of this guide for amplifier and
speaker connection diagrams.)
NOTE: 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.
COMBINED AMPLIFIERS
GAIN AND FILTER SETTINGS
NOTE: You MUST set the Subsonic, EQ, and other filter
settings on the masteramplifier to the same positions to
achieve safe, optimal results. Adjustment guidelines are
discussed in the Crossover and Gain Adjustment section
of this guide.
Single Subwoofer Connection (top view)
Two Subwoofer Connection (top view)
FIGURE 4—SPEAKER WIRING DIAGRAMS
NOTE: The dual (+) and (-) sub-out terminals of the PA400.1, PA600.1 and PA1200.1 are paralleled internally,
and the combined load impedance should be taken into consideration when connecting multiple subwoofers.