User Manual

Connections
6. Connections
Danley DSA amplier rear panel connections are
illustrated in Diagrams 6a.
6.1 Mains Power Connection
Danley DSA ampliers 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 amplier.
Danley DSA ampliers incorporate a front panel mounted
power button. Press the button once to switch the amplier on
or off. Ensure that all signal, GPIO and output connections are
made before switching on the amplier.
6.2 Input Connection
All Danley DSA amplier 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 congured via the
Control Web App Input Tab. See Section 5 of this manual.
Analog Inputs
Danley DSA 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 Control Web App Input
Ta b . See Section 5 of this manual.
Balanced input connections to the ampliers 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 ampliers are made via
RCA phono sockets connected in parallel with the balanced
inputs.
Diagram 6a
Danley DSA rear panel connections.
Note: Two output amplier model connection sockets differ only in
the deletion of channel 3 and channel 4 output connectors.
Digital Inputs
Danley DSA S/PDIF stereo digital audio input connections
are made via a single RCA Phono socket. The S/PDIF input is
connected by default to amplier installation Zones A (left) and
B (right).
Digital Outputs
Danley DSA S/PDIF stereo digital audio output connections are
made via a single RCA Phono socket. The S/PDIF output signal
by default reects the input to amplier installation Zones A
and B and is intended to be used for daisy-chaining Danley DSA
ampliers.
Note: 75Ω RCA Phono cables specically 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 ampliers 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 (+) amplier
terminals should always be connected to positive speaker
terminals and negative (–) amplier 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 congured via the
Control Web App Input Tab. See Section 5 of this manual.
Connecting cables to the supplied female output connector is
illustrated in Diagram 6c.