Takstar BM-650, User Manual

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

13