Toa MT-251H Bedienungsanleitung

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5. SPECIFICATIONS
Note: The design and specications are subject to change without notice for improvement.
Capacity 0 – 250 W
Primary Side 100 V line, 70 V line
Secondary Side 100 V line, 70 V line, 50 V line, 35 V line
Frequency Response 30 Hz – 18 kHz (+0 dB, –3 dB)
Connection Terminal M3 screw terminal, distance between barriers: 6.6 mm (0.26")
Dimensions 108 (w) x 80 (h) x 122 (d) mm (4.25" x 3.15" x 4.8")
Weight 2.4 kg (5.29 lb)
4.3. DA-500F-HL CU
[2 output channels connection] [Single output channel connection]
Note
Be sure to set the HPF (High-pass lter) to ON.
Note
Be sure to set the HPF (High-pass lter) to ON.
4.4. DA-500FH CE
[2 output channels connection] [Single output channel connection]
Note
All of the following conditions should be met.
• A + B = 350 W max.
• A = 250 W max.
• B = 250 W max.
250 W
max.
250 W
max.
IN
OUT
IN
OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
500 W
max.
70 V line
IN
OUT
IN
OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
A
B
IN
OUT
IN
OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
350 W
max.
100 V line
IN
OUT
IN
OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
MT-251H
1. SAFETY PRECAUTIONS
2. GENERAL DESCRIPTION
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.
3. HANDLING PRECAUTIONS
Be sure to adjust the input level so that amplier's Peak indicator does not light.
Operating the amplier while the Peak indicator is lit continuously or intermittently causes output
sound to be interrupted.
Note that incorrect cable connection may damage the speakers.
4. CONNECTIONS
The cable connections to the MT-251H's taps on the primary and secondary sides differ depending
on the amplifier model to use.
• 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 specied ampliers in combination. Failure to follow this instruction could result in
damage to the speaker.
• When bridge-connecting the ampliers, 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)
[DA-250DH CU, DA-250FH CU] [DA-250DH CE, DA-250FH CE]
Note
Be sure to set the input sensitivity of the
amplier to +4 dB, and the HPF (High-pass
lter) to ON when using the amplier for
microphone announcement application.
Note
Be sure to set the input sensitivity of the
amplier to +4 dB when using the amplier for
microphone announcement application.
250 W
max.
IN OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
250 W
max.
IN
OUT
COM (Black) COM (Black)
100 V line
(Red)
70 V line
(Brown)
100 V line
(Yellow)
70 V line
(Orange)
50 V line
(Red)
35 V line
(Brown)
INSTRUCTION MANUAL
MATCHING TRANSFORMER
URL: http://www.toa.jp/
Indicates a potentially hazardous situation which, if mishandled,
could result in death or serious personal injury.
WARNING
201407
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5. SPECIFICATIONSNote: The design and specications are subject to change without notice for improvement. Capacity 0 – 250 WPrimary Side 100 V line, 7

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