background image

Applicable to the altitude 
below 2000m only

Applicable to the non-tropical 
climate condition only

To

 

avoid

 

electric

 

shock

over

 

temperature

catching

 

fire

radiation

explosion

mechanical

 

risk

 

and

 

hurt

 

or

 

property

 

loss

 

caused

 

by

 

improper

 

use

please

 

read

 

the

 

following

 

items

 

carefully

 

before

 

operation

:

1

Adjust the volume to proper level during operation. Do not operate at high volume 

level for a long time to avoid hearing loss. 

2

If abnormal phenomenon (smoke, abnormal smell) happens, please turn off the 

power switch and disconnect the power plug with power socket immediately, and send 

the product to local dealer for maintenance. 

3

The product and accessories should be put in dry and ventilated place rather than 

humid or dusty environment. Prevent the product from fire, liquid, rain, water, 

over-colliding, throwing, vibrating, vent hole covered to avoid function destroyed. 

4

When the product needs to be installed on wall or ceiling, please fix it tightly to avoid 

dropping risk. 

5

Please abide by safety rules during operation. Do not use the product in the place 

prohibited by regulation or law to avoid accident. 

6

Do not disassemble or repair the product by yourself to avoid hurt. If you have 

question or need service, please contact the local dealer. 

7

Only use the phantom power right for this product. The applicable altitude and 

climate conditions of this product are subject to the phantom power. The meaning of 

the icons on phantom power is as below: 

Caution

█   

BM-650

Boundary Microphone

phantom power

power amplifier

speaker cabinet

C

Connect

 

microphone

 

with

 

48V

 

phantom

 

power

Refer

 

to

 

the

 

diagram

 

below

:

Note

Before

 

operation

decrease

 

the

 

volume

 

of

 

audio

 

equipments

then

 

turn

 

on

 

the

 

phantom

 

power

and

 

then

 

increase

 

the

 

volume

 

slowly

 

to

 

a

 

proper

 

level

 

to

 

avoid

 

too

 

high

 

sound

 

pressure

 

surges

 

the

 

speaker

Keep

 

the

 

microphone

 

away

 

from

 

speaker

 

as

 

much

 

as

 

possible

 

to

 

avoid

 

feedback

A. The microphone has no sound

1

Check if the audio equipment which the microphone connects has 9-52V phantom 

power function. If no 9-52V phantom power function, the microphone does not work. 

2

Check if the volume of audio equipment which microphone connects has been set to 

too low a level. Increase the volume and check the result. 

3

Check if the master volume of audio equipment which microphone connects has 

been set to too low a level. Increase the volume and check the result.

B. There is feedback when the speaker cabinet is connected. 

1

If the audio equipment has feedback-eliminating-function, turn on this function. 

2

Keep the microphone cartridge against the speaker cabinet, and keep away to a 

proper distance. 

3

Decrease the microphone volume or speaker cabinet output volume. 

Trouble

 

Shooting

█   

BM-650

Boundary Microphone

12

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