USER MANUAL
iAC
Installation Power Amplifier
Front panel functions
LED INDICARTORS
THE SIGNAL INDICATOR illuminates when indicates an audio signal in the
amplifier's input.
LIMITER INDICATOR - the amplifier has a built-in audio signal limiter in order to
limit output power. In case if input audio signal exceeds the maximum amplitude
needful to achieve maximum power, the audio limiter reduces the audio signal level
to a safe value and indicates activity using LIMIT LED.
MUTE INDICATOR illuminated when mute function is activated. The red LED
indicates muted channel.
POWER BUTTON
Switch amplifier power ON or OFF.
LCD DISPLAY
LCD screen displays main information about amplifiers: volume level, tone
controls levels, muting, locking, stand by status or sync settings.
ROTARY ENCODER
Designated to adjust amplifier parameters. Rotate the encoder to adjust
parameters and push it to enter the menu or sub-menu. Press and hold for a
second to return the default screen. Push rotary encoder shortly to select CH1
or CH2, hold it to activate the selected channel menu. In order to disable LOCK
mode press and hold the encoder for 5 seconds. Turn or press knob to get back
device from standby mode.
Rear panel functions
MODE SWITCH (iAC 2X240)
Amplifier can be set to operate in 2 modes: 2 controllable channels or single
channel mode. Both selections can operate in 100 V line.
STEREO RCA & BALANCED PHOENIX INPUTS
RCA input for line level audio.
AMPLIFIER OUTPUTS
Audio outputs for 4 Ω, 70 V, and 100 V speaker lines. Only one output can be
used at the time. Operating amplifier with more than one output may cause
damage the amplifier or connected speakers.
RS232 SERIAL INTERFACE
Designed to control main function of iAC aplifiers by using serial interface.
RS232 protocol is listed in page 8.
RESET BUTTON
This button resets all amplifier parameters to default values. To activate this
function, press and hold button for two seconds.
MAIN POWER CONNECTOR
Power connector for mains power.
05
Operation
2 CHANNEL
MODE
BRIDGE
MODE
06
100 V
240 W
COM 4 Ω 50 V 100 V
COM 4 Ω 50 V 100 V
COM 4 Ω 50 V 100 V COM 4 Ω 50 V 100 V
100 V
240 W
100 V
480 W
100 V
240 W
COM 4 Ω 50 V 100 V
COM 4 Ω 50 V 100 V
COM 4 Ω 50 V 100 V COM 4 Ω 50 V 100 V
100 V
240 W
100 V
480 W