Connections
6. Connections
PowerZone Connect amplifier rear panel connections
are illustrated in Diagrams 6a.
6.1 Mains Power Connection
PowerZone Connect amplifiers incorporate a power factor
corrected universal power supply and can be used with mains
input voltage from 100V AC to 240V AC, 50/60Hz. Use the
mains cable supplied with the amplifier.
PowerZone Connect amplifiers have no mains power switch
and are operational as soon as mains power is connected.
Ensure that all signal, GPIO and output connections are made
before connecting the amplifier to mains power.
6.2 Input Connection
All PowerZone Connect amplifier models provide four balanced
or unbalanced analog audio inputs and a stereo S/PDIF digital
audio input. Any input channel can be routed to any output
channel. Input routing options can be configured via the
amplifier network interface. See Section 5 of this manual.
Analog Inputs
PowerZone Connect analog inputs are of line level format with
a default input sensitivity of +4dBu (full output voltage swing/
sensitivity) in all output modes. Depending on the selected
sensitivity, the inputs can handle up to +24dBu without
clipping. Input sensitivity options can be set via the amplifier
network interface. See Section 5 of this manual.
Balanced input connections to the amplifiers are made via male
‘Euro Block’ connectors. Connecting cables to the supplied
female input connectors is illustrated in Diagram 6b.
Unbalanced input connections to the amplifiers are made via
RCA phono sockets connected in parallel with the balanced
inputs.
Diagram 6a
PowerZone Connect rear panel connections.
Note: Two output amplifier model connection sockets differ only in
the deletion of channel 3 and channel 4 output connectors.
Digital Inputs
PowerZone Connect S/PDIF stereo digital audio input
connections are made via a single RCA Phono socket. The S/
PDIF input is connected by default to amplifier installation
Zones A (left) and B (right).
Digital Outputs
PowerZone Connect S/PDIF stereo digital audio output
connections are made via a single RCA Phono socket. The S/
PDIF output signal by default reflects the input to amplifier
installation Zones A and B and is intended to be used for daisy-
chaining PowerZone Connect amplifiers.
Note: 75Ω RCA Phono cables specifically intended for digital audio
should always be used for S/PDIF connections. Standard Phono
cables can be used but may not result in optimal performance.
Note: The S/PDIF output level is by default set at -10dB to reduce
the possibility of downstream input clipping.
6.3 Output Connections
Output connections from the amplifiers are achieved via male
‘Euro Block’ connectors. Ensure that speaker connection
polarity is correct throughout the installation:
In the case of Lo-Z speaker connections, positive (+) amplifier
terminals should always be connected to positive speaker
terminals and negative (–) amplifier terminals always connected
to negative speaker terminals.
In the case of Hi-Z speaker connections, the two speaker cable
conductors should be connected between the positive (+)
terminal of Output 1 and the negative terminal (-) of Output 2,
and likewise for Outputs 3 and 4.
Output mode options (Lo-Z or Hi-Z) can be configured via the
amplifier network interface. See Section 5 of this manual.
Connecting cables to the supplied female output connector is
illustrated in Diagram 6c.
