Biamp Vocia VA-2060 Manual De Operación página 14

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C – Relay Common
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NC – Normally Closed
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NO – Normally Open
All Speaker wiring connections 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.
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
4Ω
VA-4030(e)
4Ω
VA-2060(e)
CAUTION
25V 70V
8Ω
Setting Setting
8Ω 20.8Ω 163.3Ω
8Ω 10.4Ω 81.7Ω
100V
Setting
333.3Ω
166.7Ω