Audio Amplifier User Manual

Front Panel Description

1. Power Switch

1. Press to turn the amplifier ON/OFF.

2. Ensure all connected devices are powered appropriately before switching on.

2. Power Indicator (LED)

Illuminates steady green/blue when the amplifier is powered on.

3. Level Meter (LED Indicators)

Displays real-time audio input/output levels:

• Blue: Safe operating level

• Yellow: Approaching maximum limit

• Red: Clipping / distortion risk (reduce volume)

Ensure peaks remain in the yellow range for optimal performance.

4. Volume Control Knob

1. Rotate clockwise to increase volume, counter-clockwise to decrease.

2. Start at minimum volume when powering on to avoid sudden loud output.

3. For balanced sound, adjust while playing audio at typical listening levels.

Rear Panel Description

1. Balanced Input (XLR / TRS)

Connect professional audio sources (e.g., mixers, interfaces) using XLR or TRS cables for noise-resistant signal transmission.

Pin configuration:

• Pin 1 – Ground

• Pin 2 – Positive (+)

• Pin 3 – Negative (−) (for XLR)

2. Unbalanced Input (RCA / TS)

For consumer audio devices (e.g., CD players, phones) using RCA or TS cables.
Keep cable runs short to minimize interference.

3. Unbalanced Output (RCA / TS)

Line-level output for daisy-chaining to another amplifier or recording device.

4. Balanced Output (XLR / TRS)

Sends a balanced signal to additional amplifiers or processors without signal degradation.

5. Speaker Terminals (Bare Wire / Banana Plug)

Connect speakers using bare wire (correct polarity +/−) or banana plugs.

Match impedance according to amplifier specifications:
4Ω / 8Ω / 70V / 100V / 240V

6. Fuse Holder

Houses a replaceable fuse.

Warning: Disconnect power before replacing; use identical fuse type.

7. AC Power Input

Connect the included IEC power cable to a grounded outlet.

Specifications

Inputs

Line Input:
0.775 V / 10 kΩ

Outputs

Main Output:
0 dB / 0.775 V / 600 Ω

Amplifier Power Options:
800 W / 1000 W / 1500 W / 2000 W

General

Frequency Response:
80 Hz – 18 kHz ±2 dB

Distortion:
< 0.02 %

Signal-to-Noise Ratio:
Better than 70 dB

Imix PD-1500 Public Address Amplifier (1500W)