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VOCIA AMPLIFIERS VA-2060, VA-2060e, VA-4030, VA-4030e REAR PANEL
Amplifier Output Connections
Transformer Load Selection
The required amplifier output load is configured via the use of a recessed indented selector above the amplifier speaker output connectors.
The switch is designed to be operated with a flat blade screwdriver (blade width 0.1”- 0.25”/ 2.5mm - 6.4mm). Selection can be made between
4 or 8Ω for Low Impedance connections and 25V, 70V or 100V for Constant Voltage loads. By default, the amplifier factory default setting
is 8Ω. Do not operate the amplifier with no speaker load. If an amplifier channel is unused (i.e., has no load) do not configure the channel in
Vocia software to pass audio.
Speaker Connection
To minimize power loss, use a speaker cable of appropriate gauge for the load impedance. For long speaker cables, to minimize high
frequency loss, choose a low capacitance cable. Use the supplied plug-in barrier strip connectors to connect loudspeaker level outputs. If
stranded speaker wire is used, be sure to incorporate all strands into the connector, as stray strands can short to the adjacent terminal or
chassis. Do not leave excessive bare wire outside the terminals, as this can lead to shorts. Use of the supplied cable restraints is required
to secure the cable in the connector. To facilitate parallel wiring, each connector allows for the connection of two loads to each amplifier
channel. Two four-way connectors are available on the VA-2060 and VA-2060e amplifier and four connectors are available on the VA-4030
and VA-4030e amplifier.
Rated Load Table:
The total output load connected to any channel must not be less than the rated impedance load for that channel,
as detailed below. Operating the amplifier in excessive overload may cause power supply safety limiting.
4Ω Setting
8Ω Setting
25V Setting
70V Setting
100V Setting
VA-4030 and VA-4030e
4Ω
8Ω
20.8Ω
163.3Ω
333.3Ω
VA-2060 and VA-2060e
4Ω
8Ω
10.4Ω
81.7Ω
166.7Ω
CAUTION: All speaker wiring connections and output load selection should be made by qualified
personnel and with the amplifier power removed. The 100V output requires Class 3 wiring.
Please refer to a qualified electrician or other qualified person according to local codes.
