Citronic PL720, PL1080 User Manual

PL720, PL1080

1U STEREO POWER AMPLIFIERS

Order ref: 172.111UK, 172.112UK

User Manual

Caution: Please read this manual carefully before operating

Damage caused by misuse is not covered by the warranty

PL 1U Series User Manual

Introduction

Thank you for choosing the Citronic PL-series 1U class D power amplifiers as part of your sound reinforcement
system. These high output amplifiers are designed to offer high quality, dependable service for mobile and
installed systems. Please read this manual fully and follow the instructions to achieve the best results with your
new purchase and to avoid damage through misuse.

Warning

To prevent the risk of fire or electric shock, do not expose any of the components to rain or moisture.
If liquids are spilled on the casing, stop using immediately, allow unit to dry out and have checked by qualified
personnel before further use. Avoid impact, extreme pressure or heavy vibration to the case
No user serviceable parts inside – Do not open the case – refer all servicing to qualified service personnel.

Safety

• Check for correct mains voltage and condition of IEC lead before connecting to power outlet

• Ensure speaker leads are good condition with no short connections or damaged plugs

• Check impedance of speaker loads do not exceed the minimum stated load for the amplifier

• Do not allow any foreign objects to enter the case or through the ventilation grilles

Placement

• Keep out of direct sunlight and away from heat sources, damp or dusty environments

• When rack-mounting, ensure adequate support for the base of the amplifier and firm fixings for the front

• Ensure adequate air-flow and do not cover cooling vents at the front and rear of the amplifier

• Ensure adequate access to controls and connections

Cleaning

• Use a soft cloth with a neutral detergent to clean the casing as required

• Use a vacuum cleaner to clear ventilation grilles of any dust or debris build-ups

• Do not use strong solvents for cleaning the unit

Front Panel

1. Power on/off switch

2. Cooling vent

3. Channel A gain control

4. LED indicators

5. Channel B gain control

Rear Panel

6. Channel B input

7. Mode switch

8. Channel A input

9. Ground lift switch

10. Channel B SPK output

11. Channel A SPK output

12. Channel B 4mm output

13. Channel A 4mm output

14. Cooling vent

15. IEC mains inlet & fuse

16. Mains voltage selector