TOA | MT-251H | manual | TOA MT-251H User manual

TOA MT-251H User manual
4.3. DA-500F-HL CU
INSTRUCTION MANUAL
MATCHING TRANSFORMER
MT-251H
Indicates a potentially hazardous situation which, if mishandled,
WARNING could result in death or serious personal injury.
• External wiring connected to the terminals requires installation by an instructed person.
• Be sure to replace the unit's terminal cover after connection completion. Because the voltage
of up to 100 V is on the both primary and secondary sides, never touch these terminals to
avoid electric shock.
• Use the specified amplifiers in combination. Failure to follow this instruction could result in
damage to the speaker.
• When bridge-connecting the amplifiers, never use the MT-251H, as this will damage the
speakers and the MT-251H. (DA-250DH CU, DA-250FH CU, and DA-500F-HL CU only)
2. GENERAL DESCRIPTION
3. HANDLING PRECAUTIONS
• Be sure to adjust the input level so that amplifier's Peak indicator does not light.
Operating the amplifier while the Peak indicator is lit continuously or intermittently causes output
sound to be interrupted.
• Note that incorrect cable connection may damage the speakers.
50 Line
(RED)
IN
OUT
[DA-250DH CU, DA-250FH CU]
[DA-250DH CE, DA-250FH CE]
OUT
IN
100 Line
(YELLOW)
70 Line
(ORANGE)
50 Line
(RED)
35 Line
(BROWN)
COM (BLACK)
100 Line (RED)
250 W
max.
Note
Be sure to set the input sensitivity of the
amplifier to +4 dB, and the HPF (High-pass
filter) to ON when using the amplifier for
microphone announcement application.
70 Line
(BROWN)
OUT
50 Line
(RED)
35 Line
(BROWN)
COM (BLACK)
COM (BLACK)
250 W
max.
70 Line
(ORANGE)
50 Line
(RED)
70 Line
(BROWN)
COM (BLACK)
Note
Be sure to set the HPF (High-pass filter) to ON.
100 Line
(YELLOW)
70 Line
(ORANGE)
50 Line
(RED)
35 Line
(BROWN)
COM (BLACK)
COM (BLACK)
IN
OUT
100 Line (RED)
250 W
max.
OUT
70 Line
(BROWN)
100 Line
(YELLOW)
70 Line
(ORANGE)
50 Line
(RED)
70 Line
500 W
max.
35 Line
(BROWN)
COM (BLACK)
COM (BLACK)
Note
Be sure to set the HPF (High-pass filter) to ON.
4.4. DA-500FH CE
[2 output channels connection]
100 Line (RED)
70 Line
(BROWN)
OUT
100 Line (RED)
70 Line
(ORANGE)
50 Line
(RED)
COM (BLACK)
COM (BLACK)
IN
OUT
70 Line
(BROWN)
IN
100 Line
(YELLOW)
35 Line
(BROWN)
100 Line (RED)
[Single output channel connection]
70 Line
(BROWN)
A
100 Line
(YELLOW)
50 Line
(RED)
COM (BLACK)
70 Line
(ORANGE)
50 Line
(RED)
35 Line
(BROWN)
COM (BLACK)
IN
OUT
70 Line
(BROWN)
B
Note
All of the following conditions should be met.
• A + B = 350 W max.
• A = 250 W max.
• B = 250 W max.
100 Line
(YELLOW)
COM (BLACK)
100 Line (RED)
70 Line
(ORANGE)
OUT
100 Line
(YELLOW)
70 Line
(ORANGE)
50 Line
(RED)
100 Line
350 W
max.
35 Line
(BROWN)
COM (BLACK)
COM (BLACK)
5. SPECIFICATIONS
100 Line
(YELLOW)
70 Line
(ORANGE)
100 Line (RED)
100 Line
(YELLOW)
35 Line
(BROWN)
COM (BLACK)
COM (BLACK)
The cable connections to the MT-251H's taps on the primary and secondary sides differ depending
on the amplifier model to use.
COM (BLACK)
70 Line
(ORANGE)
COM (BLACK)
70 Line
(BROWN)
IN
100 Line
(YELLOW)
COM (BLACK)
100 Line (RED)
[Single output channel connection]
OUT
35 Line
(BROWN)
4. CONNECTIONS
70 Line
(BROWN)
70 Line
(BROWN)
IN
Designed for use with the DA-250DH, DA-250FH, DA-500F-HL and DA-500FH Multi-Channel
Power Amplifiers, the MT-251H electrically isolates the high-impedance speaker lines from the
amplifier.
IN
IN
100 Line (RED)
35 Line
(BROWN)
1. SAFETY PRECAUTIONS
100 Line (RED)
[2 output channels connection]
250 W
max.
Note
Be sure to set the input sensitivity of the
amplifier to +4 dB when using the amplifier for
microphone announcement application.
Capacity
Primary Side
Secondary Side
Frequency Response
Connection Terminal
Dimensions
Weight
0 – 250 W
100 Line, 70 Line
100 Line, 70 Line, 50 Line, 35 Line
30 – 18,000 Hz (+0 dB, –3 dB)
M3 screw terminal, distance between barriers: 6.6 mm (0.26 ")
108 (w) x 122 (h) x 80 (d) mm ( 4.25 " x 4.8 " x 3.15 ")
2.4 kg (5.29 lb)
Note: The design and specifications are subject to change without notice for improvement.
URL: http://www.toa.jp/
200801
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