10
Output connections are handled via 3 female Neutrik
®
Speakon
®
NL4 connectors. In stereo or dual-mono mode, both channels
can be connected via a single four conductor cable using the
Speakon
®
NL4 in the channel 1 output jack. Channel 1 is
connected at Pin1+ and Pin1-, and Channel 2 at Pin2+ and
Pin 2-.
The bridged mono Speakon
®
jack provides the bridged output
on Pin1+ and Pin1-, or at Pin 2+ and Pin 2-. This allows a
connection to match any loudspeaker configuration.
The channel 2 Speakon
®
output provides channel 2 output at Pin
1+ and Pin 1- in both stereo and dual-mono mode.
Channel 2 Speakon
®
Connector
Channel 2 (+) is connected at Pin 1+
Channel 2 (-) is connected at Pin 1-
Channel 2 Five-Way Binding Posts
Channel 2 (+) is connected at the red(+) post
Channel 2 (-) is connected at the black(-) post
Bridged Mono Speakon
®
Connector
Positive or Non-Inverted Mono output is connected at Pin 1+
Negative or Inverted Mono output is connected at Pin 1-
Positive or Non-Inverted Mono output may also be connected at Pin 2+
Negative or Inverted Mono output may also be connected at Pin 2-
Bridged Mono Five-Way Binding Posts
Positive Mono output is connected at the CH 2 red(+) post
Negative Mono output is connected at the CH 1 black(-) post
Channel 1 Speakon
®
Connector
Channel 1 (+) is connected at Pin1+
Channel 1 (-) is connected at Pin 1-
Channel 2 (+) may be connected at Pin 2+
Channel 2 (-) may be connected at Pin 2-
Channel 1 Five-Way Binding Posts
Channel 1 (+) is connected at the red(+) post
Channel 1 (-) is connected at the black(-) post
INSTALLATION & CONNECTIONS
CH2+
CH2-
CH1+
CH1-
MONO+
MONO-
Pin 1+
Pin 1-
Pin 2+
Pin 2-
Pin 1+
Pin 1-
Pin 1+ or 2+
Pin 1- or 2-
CH2
MONO
CH1
+
_
As Illustrated in the Figures Above:
CAUTION: To avoid damaging the equipment, DO NOT ground any output terminal of the ZR amplifier.
OUTPUT CONFIGURATION
For multi-amplifier installations, the sequencing feature limits the
overall inrush current by delaying power up of each amplifier in
the sequence by 1/2 second.
For locally sequenced power up, the power switch on the first
amplifier in the chain will act as the master switch. To power up
the entire rack of amplifiers, you simply turn on the power switch
of the first amplifier. The power switch of the first amplifier
should never be set to “Standby”. All the other amplifiers in the
chain must be set to “Standby,” so they can receive the power-
on command from the first amplifier. Locate the Euro-style
connector labeled “Sequence” on the rear panel. Connect a
single conductor from the “SEND,” terminal of the first amplifier
to the “RECV” terminal of the second amplifier in the sequence.
Connect the “SEND” terminal of the second amplifier to the
“RECV” terminal of the third amplifier. Repeat until you reach
the end of the chain.
NOTE: The last amplifier in the series will not have any connections at
the “SEND” terminal and all sequence ground terminals are connected
either by a 16 gauge stranded conductor (minimum) or via the
common chassis ground provide by a rack rail if rack mounted.
Measuring from the sequence ground to a point on the rack rail there
should be no more than 0.5 ohm DC resistance if the sequence
grounds are not directly connected to each other.
For remote sequenced power up, the power switch on all
amplifiers must be set to the “Standby” position. Apply a fused
external 5 - 15Vdc (greater than or equal to 20mA) supply
voltage to the “RECV” terminal via a switch and the “ ”
terminal. Connect the “SEND” terminal to the next amplifier’s
“RECV” terminal as referenced above for a “local sequence
power up”.
SEQUENCING