BRUEL & KJAER 2719, Руководство пользователя, Страница: 20 / 26

CHAPTER 4
Characteristics
15
Frequency Response
The full power output of 180 VA is available in the frequency range from 40 Hz to 10 kHz. At
lower power levels the amplifier has a useful frequency range from DC to 100 kHz. This
depends on the signal input socket used and the setting of the V/C Mode switch, as shown by
the response curves for small signals given in Fig.4.4.
Fig.4.4 Frequency response in Voltage Mode of Type 2719 for power output levels up to 20 VA
D C Input Low Impe d an c e D C Input S pe c ifi c ation Limit
A C Input
Low Impe d an c e A C Input S pe c ifi c ation Limit
5
Relative Amplitu
d
e (
d
B)
4
3
2
1
0
-2
-4
- 6
-8
-10
1 2 5 10
20
50
100 200
500 1k 2k 5k 10k
20k 50k 100k 200k
500k 1M
Fre q uen c y (Hz)
010104