Toa AV-60S-AM, Operating Instructions Manual

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3. GENERAL DESCRIPTION
The AV-60S-AM is a single channel digital amplifier for speech and general announcement. This compact
amplifier is equipped switching power supply circuit inside, Energy Star 3.0 certified and PLENUM rated (UL
2043 tested) for the installation into air handling space without external AC adaptor. The rated output power is
60W at 70V or 4 Ohms. The unit is suited to use in board room, conference room and AV presentation room.
4. FEATURES
• 70V / 4 Ohms output is selectable with a selector switch.
• 3 kinds of input connector (RTB, 3.5mm plug and RCA STEREO) with individual input level selector switch.
• Compliant with “Energy Star 3.0” to save the power automatically moving into minimum power consumption.
• High efficiency and low heat Class-D amplifier technology achieves fanless, no ventilation, convection cooling.
• Supplied VCA for remote volume control.
• Front operable bass and treble controls in recessed design to prevent accidental operation.
•
Removable input/output terminal blocks facilitate installation and maintenance.
•
Built-in ALC (Auto-Level Compressor) circuit to protect the connected speakers and internal
components from the over loaded input.
•
Working in AC100V to 240V, 50Hz/60Hz.
• UL2043, plenum rated construction for in-the-ceiling installation using attached EMT adaptor plate.
5. NOMENCLATURE AND FUNCTIONS
[Front]
This figure represents the AV-60S-AM
1. Power on indicator
Lights green when the amplifier is powered on. If it is
fast blinking, output mode is in 70V. If it is always on,
output mode is in 4 Ohm and slowly blinking the unit
stays power saving mode.
2. Protection indicator
Whenever this red indicator lights up, it implies that
the internal protections have been triggered to protect
the unit against damage. Should this protections turn
on, please check if the amplifier is being overdriven or
there is any short circuit in speaker wires.
3. Signal level indicators
Lights green when audio signals are output from the
speaker output terminals.
4. Peak indicators
Lights red if output signals approach clipping level. If
steady lit, turn down the corresponding input volume
control until the indicator flashes intermittently
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