952.412UK User Manual
Introduction
Thank you for choosing the Adastra H25B portable PA system. This all-in-one unit is designed to offer convenient and reliable portable
amplification for a wide range of small public address applications. Please read this manual before using this equipment to avoid
damage through incorrect operation and to get the best performance from your purchase.
Contents
Please take care when unpacking this product. Inspect for any damage and ensure you have the following components…
•
H25B Handheld PA speaker unit
•
VHF bodypack transmitter
•
Neckband microphone
•
Shoulder strap
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 any component, stop using immediately, allow unit to dry out and have checked by qualified personnel before
further use.
Avoid impact or heavy vibration to any of the components, dropping the microphone can cause capsule failure.
No user serviceable parts inside transmitter or receiver except for battery/charging access - refer servicing to qualified service
personnel.
Safety
•
Ensure that mains supply voltage is correct for charging via the integral lead
•
Avoid ingress of water or particles into the unit or bodypack transmitter
•
Use alkaline or NiMH batteries in the transmitter and remove if unused for long periods.
•
Observe the correct polarity when replacing batteries
•
Do not attempt to charge USB devices from the type ‘A’ connector
Placement
•
Keep all components out of direct sunlight and away from heat sources.
•
Avoid impact or crushing of components
•
Keep all components away from damp or dusty environments.
Cleaning
•
Use a soft cloth with a neutral detergent to clean the outside of each component
•
Lightly damp sterile wipes may be used on the microphone head for hygiene purposes
•
To avoid damage, do not use solvents to clean the components
Specifications
Power supply: main unit
Mains or internal rechargeable battery
Power supply: VHF bodypack
3Vdc (2 x AA battery)
Output power: max
25W
RF carrier frequency
174.1MHz
RF power
10mW
Frequency response
100Hz - 12kHz
S/N ratio
>60dB
VHF operating distance
35.0m
VHF tuning stability
0.005% quartz crystal locked
FM radio tuning range
88 - 108MHz
Dimensions: VHF bodypack
100 x 65 x 35mm
Weight: VHF bodypack
68.2g (no battery)
Dimensions: main unit
155 x 183 x 285mm
Weight: main unit
2.74kg
