AMC iA2X250 사용자 설명서 - 페이지 7

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AMC iA2X250에 대해서도 마찬가지입니다: 사용자 설명서 (7 페이지)

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Functions description

SIGNAL INDICATOR

Signal LED indicates audio signal in the amplifiers input.

OUTPUT CONFIGURATION INDICATOR

Amplifier output can be configured for 4Ω, 70V and 100V audio system by using switch in the rear panel.

Output configuration LED indicates what kind of sound system is selected. Configuration depends on the

connected speaker type. Output configuration switch must be set to position "4Ω" when low impedance

loudspeaker (8 Ω or 4Ω) is connected, position "70V" or "100V" suitable for loudspeaker with impedance

matching transformer inside.

PROTECT INDICATOR

After power on protection LED starts illuminate and goes off after few seconds if the amplifier is not

damaged. It is normal if protection indicator illuminates and then slowly fades after amplifier off.

VENTILATION HOLES

Cool air is pulled in through the front panel fan filters and eliminated through the rear panel ventilation

holes.

POWER SWITCH

Use this switch to power on or off amplifier.

BALANCED XLR INPUT

This is balanced XRL line level audio input. Gain of this input can be adjusted by using gain control knob

located above input connectors.

INPUT GAIN CONTROL

This control allows you to precisely adjust audio level in the input. Turn knob clockwise to increase and

counterclockwise to decrease input gain. Input level can be adjusted from -∞ to 0 dB.

OUTPUT CONFIGURATION SWITCH

Amplifier output can be configured for 4 Ω, 70V and 100V audio system by using output configuration

switch. Configuration depends on the connected speaker type. Output configuration switch must be set

to position "4 Ω" when low impedance loudspeaker (8 Ω or 4Ω) is connected, position "70V" or "100V"

suitable for loudspeaker with impedance matching transformer inside.

INPUT MODE SELECTOR

There are available two input modes, single and dual.

Dual mode: This is general used mode; each input is directed to this own output. All inputs require audio

signal and all amplifier outputs work independently.

Single mode: This mode allows two channels operate in parallel with same signal. In this mode two channel

inputs are internally connected. Only one input require audio signal in order to active two amplifiers outputs.

Do not use single mode then feeding the amplifier with two separate signals.

FILTER SWITCH

Filter reduce low and high audio frequency at 200 Hz and 10 kHz points by -3dB.

AMPLIFIERS OUTPUT

Use this connector to connect amplifier to the loudspeakers. Please take attention to the loudspeakers

impedance and select corresponding output configuration by using output configuration switch. Please

note: incorrect output configuration can damage loudspeaker or amplifier!

MAIN POWER CONNECTOR

This connector is designed for connecting main power to the amplifier. Connector is combined with fuse

holder.