Yenisei D 1.25
Yenisei D 1.25
Description
Specifications
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Description
- The ENISEY D1.25 amplifier is designed to amplify the nominal level signal of 0.775V (0dB) coming from the sound program source to the level of 240V (50dB) at nominal load.
- The amplifier is made in the form of a monoblock, 4U high, which allows you to place the amplifier in a standard 19" rack cabinet.
- The amplifier has an additional balanced microphone input and an unbalanced line input. The inputs have their own level control and forced shutdown.
- The output of the amplifier is transformer, symmetrical, having 8 galvanically isolated windings, protected by fusible links, each with a voltage of 30V, which makes it possible to obtain a voltage of 30, 60, 120 and 240V at the output of the amplifier with appropriate switching of the output windings.
- The power supply of the amplifier is carried out from a single-phase AC network with a voltage of 220V, 50Hz, with mandatory grounding.
- The amplifier has a protection system, including: protection against overheating, monitoring the health of low-voltage power supplies, protection against overloads at the input and output, which ensures the amplifier's performance when the load resistance drops to zero, protection against "surge" - the power supply of the 220V electrical network goes to the output amplifier, which allows it to operate in difficult conditions.
Application: - Wired broadcasting networks
- As part of civil defense and emergency warning systems
- Sports venues
- Malls
- As part of radio broadcasting systems on the streets, in parks and city squares
Specifications
Parameter name
Rated value
Limit
Rated output voltage
240 V
± 12 V
Rated input voltage corresponding to the rated output
0,775 V
± 0,04 V
Rated output power when operating
on an active load 92.16 Ohm
on an active load 92.16 Ohm
1250 W
±125 W
Bandwidth transmitted frequencies
50-10000 Hz
-
Permissible deviations of the amplitude-frequency characteristic (AFC), relative to the frequency
of 1000 Hz, max, at frequencies:
- 25 Hz
- from 25 Hz to 75 Hz inclusive
- over 75 Hz up to and including 100 Hz
- over 100 Hz up to and including 6600 Hz
- over 6600 Hz up to and including 10000 Hz
- 20000 Hz
of 1000 Hz, max, at frequencies:
- 25 Hz
- from 25 Hz to 75 Hz inclusive
- over 75 Hz up to and including 100 Hz
- over 100 Hz up to and including 6600 Hz
- over 6600 Hz up to and including 10000 Hz
- 20000 Hz
-10,5 dB
-2,5 dB
-1 dB
±0,6 dB
1/-1,5 dB
-9 dB
-2,5 dB
-1 dB
±0,6 dB
1/-1,5 dB
-9 dB
±4,5 dB
±1,5 dB
±1,0 dB
-
-
±3,0 dB
±1,5 dB
±1,0 dB
-
-
±3,0 dB
Harmonic coefficient, max:
- at input voltage levels from minus 20 dB to the nominal value, at frequencies:
- up to 100 Hz
- from 100 Hz to 200 Hz inclusive
- over 200 Hz
- when the input signal level is 12 dB above the nominal value at a frequency of 1000 Hz
- at input voltage levels from minus 20 dB to the nominal value, at frequencies:
- up to 100 Hz
- from 100 Hz to 200 Hz inclusive
- over 200 Hz
- when the input signal level is 12 dB above the nominal value at a frequency of 1000 Hz
4.0 %
3.0 %
2.0 %
2.0 %
3.0 %
2.0 %
2.0 %
-
-
-
-
-
-
-
Protection from unweighted noise, max:
60 dB
-
Increasing the output voltage level when the load is turned off,
vax:
- within the frequency range from 50 Hz to 6000 Hz inclusive
- over 6000 Hz
vax:
- within the frequency range from 50 Hz to 6000 Hz inclusive
- over 6000 Hz
3.0 dB
4.0 dB
4.0 dB
-
-
-
Output voltage at load resistance two times lower than the nominal value, max
120 V
-
An increase in the output signal level when a voltage is applied
to the input 4 times higher than the nominal, max
to the input 4 times higher than the nominal, max
0.5 dB
-
Amplifier impedance module at the input intended for connecting the line
- input 1
- input 2
- input 1
- input 2
600 Ohm
1200 Ohm
±60 Ohm
±120 Ohm
Output voltage at complex load with phase angle
±45 degrees, not less than:
- at Kg 125 Hz, not more than
- at Kg 2000 Hz, not more than
±45 degrees, not less than:
- at Kg 125 Hz, not more than
- at Kg 2000 Hz, not more than
168 V
3%
5%
3%
5%
-
-
-
-
-
Power consumed from AC network with rated voltage 220 V, 50 Hz, not more than:
- in nominal mode
- with an output voltage equal to 0.3 of the nominal
- in nominal mode
- with an output voltage equal to 0.3 of the nominal
1100 W
200 W
200 W
-
-
-
Dimensions and Weight
- height
- width
- depth
- weight
- height
- width
- depth
- weight
177 mm
482 mm
445 mm
30 kg
482 mm
445 mm
30 kg
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