Topp Music Gear TMA250-4, Руководство пользователя, Страница: 8 / 9

CONTROL ELEMENTS
TMA250-4
4
7
12- Output Terminal
You can output the powered signal by the specific output connectors according to the actual application circumstance.
Caution: turn off the unit before connecting the output connectors so as to avoid any electric shock!
13- Breaker
This switch works as fuse for protecting the unit from damage. When the unit is overloaded or the temperature
inside the unit is too high, this push-button will spring up and break the power supply. The power supply will be
restored with pushing this switch again.
14- AC-Inlet
This standard IEC receptacle is supplied to allow to connect your TMA 250-4/500-4 to mains via the supplied power cord.
- function selector
Clip limit :
set these small dip switches of 1(ON) and 10(ON) at "ON" position , then the clip limit of channel 1
and channel 2 has been working; once the output level is reach or exceed the level that is predetermined by the
threshold setting selected, it may result in the undesirable distortion .in order to avoid the distortion, the clip begins;
if the dip switch are set at "OFF", the clip limit doesn't work.
CLIP LIMIT
ON
OFF
ON
OFF
2 3 4 5 6 7 8 9
Filter: this unit are equipped with two low cut filter eliminating unwanted low- frequency signals like rumble noise:
75Hz and 35Hz. You will activate 35Hz low cut filter by Turning these two small dip switches of 2 and 9 up to the
top, and turn these two small dip switches down, you will choose 75Hz low cut filter.
35Hz
FIL
TER
FIL
TER
OFF
FIL
TER
OFF
35Hz
FIL
TER
FIL
TER
ON
75Hz
FIL
TER
75Hz
FIL
TER
FIL
TER
ON
1 4 5 6 7 10
TMA500-4
CAUTION FOR APPLICATION
7
TMA250-4
10
As to the speaker cable, if you use a long one, use as thick a cable as possible to prevent deterioration of the
damping factor or power loss inside the cable.
Use the following formula to determine the fuse capacity according to the speaker's input capacity.
Po=I R I= Po/R
2
Po[W] : Speaker's continuous input capacity (noise or RMS)
R[
] : Speaker's nominal impedance
I[A] : Required fuse capacity
7.1 General Application instruction
the following instructions describe the common ways to install your TMA 250-4/500-4 power amplifier into a sound
application system:
First, turn off power switch before connection.
Refer to chapter 5 for speaker connection
TMA 250-4/500-4 power amplifier may be operated in one of the three modes, please slide the mode selector
for the Specific operating mode
7.2 caution for speak connection
The output capacity of TMA 250-4/500-4 power amplifier is very high, be sure to use a speaker system that has sufficient
input capacity. If the input capacity of your speaker system is lower than the rated output of the TMA 250-4/
500-4 power amplifier, you can protect your speakers by connecting a fuse serially between the speaker and the
amplifier as shown below.
Output
Fuse
(+)
(-)
-
+
Speaker
System
TMA500-4
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
BREAKER
CH1 CH2
CH3
CH4
INPUTS
CH1 MODE SWITCHES CH2
CH3 MODE SWITCHES CH4
OUTPUTS
MODE SWITCH SETTINGS
FILTERS
35Hz
FIL
TER
FIL
TER
OFF
FIL
TER
OFF
35Hz
FIL
TER
FIL
TER
ON
75Hz
FIL
TER
75Hz
FIL
TER
FIL
TER
ON
1 4 5 6 7 10
CLIP LIMIT
STEREO MODE
ON
OFF
ON
OFF
2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 910
SWITCH SETTINGS
TO BRIDGE CHANNEL PAIRS SET INPUT SWITCHES AS
SHOWN. USE THE LOWER NUMBERED CHANNEL'S INPUT
AND GAIN CONTROL. CONNECT SPEAKER AS SHOWN.
CH1 AND CH2
CH3 AND CH4
BRIDGEABLE
CHANNEL PAIRS: 1 2 3 4 5 6 7 8 910
BRIDGE MONO
CH3
CH4
BRIDGE
MONO
BRIDGE
MONO
CH1
CH2
OUTPUTS
1 2 3 4 5 6 7 8 910
PARALLEL MODE
MADE IN CHINA
110-120V 50/60Hz
220-240V 50/60Hz
TMA 250-4
110-120V~11A
220-240V~6A
RATED POWER
CONSUMPTION 2200W
AC INPUT
S/N