Inter-m QD-4960 User Manual download pdf (Page 6)

QUAD AMPLIFIER

QD-4240/4480/4960, QX-4960

Front Panel

1. PROTECTION INDICATOR

This LED indicates the state of the amplifier’s protection circuitry. When the Protection LED is on (illuminated),

the protection circuitry is active, indicating that the unit is not operating normally. This is typically due to

overheating or power limiting. Please check the Input and Output condition of the amplifier.

2. CLIP INDICATORS

These LEDs light when the channel’s level reaches approximately 0.5%, indicating excessive input levels.

When the Clip Indicators glow steadily, reduce the input to the amplifier.

3. SIGNAL INDICATORS

These LEDs light when the channel’s level exceeds approximately 2Vrms, indicating the presence of audio

signal input to the amplifier channel.

4. INPUT ATTENUATORS

These are 21-step detented input signal attenuators, used to increase or decrease the input level to the

amplifier.

5. HANDLES

Heavy-duty handles are provided to easily carry or position the amplifier.

6. POWER SWITCH

This switch switches the unit on, as indicated by the Power LED directly above the switch.

POWER

SIG

PROT

CLIP

SIG

PROT

CLIP

SIG

CLIP

SIG

CLIP

PROT

QUAD AMPLIFIER

4480

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Inter-m QD-4960 User Manual Page 6