www.pulse-audio.co.uk | APB Series User Manual
Introduction
Thank you for choosing a Pulse APB series power amplifier as part of your sound reinforcement system. This high output
amplifier is 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
Keep away from 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. Cooling vent 7. Power switch
2. Protect LEDs 8. Bridge LED
3. Clip LEDs 9. Parallel LED
4. Signal LEDs 10. CH2 gain control
5. CH1 gain control 11. Cooling vent
6. Power LEDs
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