Yenisei D 2.5
Yenisei D 2.5
Description
Specifications
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Description
- The amplifier "YENISEY D2.5" is designed to amplify the signal of the nominal level 0.775V (0dB) coming from the source of the sound program to the level of 240V (50dB) at the nominal load
- The amplifier is made in the form of a 19" rack, which houses a set of blocks providing a power of 2500 W
- Amplifier output transformer balanced, protected by a fusible link
- The amplifier is powered from a three-phase AC network with a voltage of 3x380V, 50Hz, with the obligatory connection of the neutral and ground wires.
- The amplifier has a protection system:
Thermal protection circuit implemented in the power amplifier unit
Circuit for monitoring the health of fuses in the audio signal path
Overload protection circuit in each PSU (power supply)
It is provided to turn off the amplifier when any of the phases is lost
Application:
- Wired broadcasting networks
- As part of warning systems for civil defense and emergencies
- As part of systems used to conduct vibration tests
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
2500 W
±250 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
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
-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
-
ncreasing 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
for connecting the line
- input 1
- input 2
600 Ohm
1200 Ohm
1200 Ohm
±60 Ohm
±120 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%
2%
3%
2%
-
-
-
-
-
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
voltage 220 V, 50 Hz, not more than:
- in nominal mode
- with an output voltage equal to 0.3 of the nominal
4100 W
600 W
600 W
-
-
-
Dimensions and Weight
- height
- width
- depth
- weight
- height
- width
- depth
- weight
690 mm
620 mm
630 mm
115 kg
620 mm
630 mm
115 kg
-
-
-
-
-
-
-
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