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

TOA MT-251H User manual
4.3. DA-500F-HL CU
INSTRUCTION MANUAL
MATCHING TRANSFORMER
[2 output channels connection]
IN
100 V line
(Red)
MT-251H
70 V line
(Brown)
WARNING
Indicates a potentially hazardous situation which, if mishandled,
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)
Note
COM (Black)
IN
100 V line
(Red)
OUT
100 V line
(Yellow)
100 V line
(Red)
COM (Black)
50 V line
(Red)
IN
100 V line
(Red)
70 V line
(Brown)
[DA-250DH CE, DA-250FH CE]
OUT
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
IN
100 V line
(Red)
70 V line
(Brown)
250 W
max.
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black)
COM (Black)
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.
OUT
100 V line
(Yellow)
Note
COM (Black)
Be sure to set the input sensitivity of the
amplifier to +4 dB when using the amplifier for
microphone announcement application.
OUT
100 V line
(Yellow)
Note
COM (Black)
Be sure to set the HPF (High-pass filter) to ON.
70 V line
(Brown)
A
OUT
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black)
COM (Black)
OUT
100 V line
(Yellow)
IN
100 V line
(Red)
OUT
100 V line
(Yellow)
COM (Black)
500 W
max.
50 V line
(Red)
IN
100 V line
(Red)
70 V line
(Orange)
50 V line
(Red)
70 V line
70 V line
(Orange)
COM (Black)
70 V line
(Brown)
B
COM (Black)
100 V line
70 V line
(Orange)
50 V line
(Red)
350 W
max.
35 V line
(Brown)
COM (Black)
COM (Black)
All of the following conditions should be met.
• A + B = 350 W max.
• A = 250 W max.
• B = 250 W max.
5. specifications
250 W
max.
COM (Black)
35 V line
(Brown)
COM (Black)
IN
100 V line
(Red)
70 V line
(Orange)
35 V line
(Brown)
[DA-250DH CU, DA-250FH CU]
50 V line
(Red)
COM (Black)
70 V line
(Brown)
Note
70 V line
(Orange)
[Single output channel connection]
OUT
100 V line
(Yellow)
50 V line
(Red)
70 V line
(Brown)
250 W
max.
COM (Black)
35 V line
(Brown)
The cable connections to the MT-251H's taps on the primary and secondary sides differ depending
on the amplifier model to use.
IN
[2 output channels connection]
4. CONNECTIONs
Note
70 V line
(Orange)
OUT
100 V line
(Yellow)
35 V line
(Brown)
COM (Black)
4.4. DA-500FH CE
• 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.
70 V line
(Brown)
250 W
max.
Be sure to set the HPF (High-pass filter) to ON.
3. HANDLING PRECAUTIONS
COM (Black)
50 V line
(Red)
35 V line
(Brown)
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.
70 V line
(Brown)
70 V line
(Orange)
IN
100 V line
(Red)
COM (Black)
70 V line
(Brown)
2. GENERAL DESCRIPTION
IN
100 V line
(Red)
OUT
100 V line
(Yellow)
35 V line
(Brown)
1. SAFETY PRECAUTIONS
[Single output channel connection]
Capacity
Primary Side
Secondary Side
Frequency Response
Connection Terminal
Dimensions
Weight
0 – 250 W
100 V line, 70 V line
100 V line, 70 V line, 50 V line, 35 V line
30 Hz – 18 kHz (+0 dB, –3 dB)
M3 screw terminal, distance between barriers: 6.6 mm (0.26")
108 (w) x 80 (h) x 122 (d) mm (4.25" x 3.15" x 4.8")
2.4 kg (5.29 lb)
Note: The design and specifications are subject to change without notice for improvement.
URL: http://www.toa.jp/
201407
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