Bosch LA3-VARI-B Installation Manual page 39

VARI-directional array
Electrical
Input Line (2x)
Input level nominal
Input level maximum
Type
Impedance (balanced)
Input 100 V (2x)
Input level nominal
Type
Impedance (balanced)
Power Amplifiers
Power
VARI‑B(H)
VARI‑E
Protection
Dynamic range
PSU
Mains voltage
Power consumption
Power save
VARI‑B(H)
VARI‑B(H)+E
VARI‑B(H)+E+E
Idle
VARI‑B(H)
VARI‑B(H)+E
VARI‑B(H)+E+E
Max. (Noise, CF 6 dB)
VARI‑B(H)
VARI‑B(H)+E
VARI‑B(H)+E+E
Power factor
Bosch Security Systems B.V.
6
Installation manual
0 dBV rms
+20 dBV peak
Transformer balanced
7.8 kohm at 1 kHz
+40 dBV rms
Transformer balanced (floating input)
1 Mohm at 1 kHz
8 x 15 W (class‑D full bridge)
4 x 25 W (class‑D full bridge)
Thermal shutdown
Current limiting
>105 dB
100 to 120 V / 200 to 240 V (auto switching)
@ Mains / 24 Vdc (22 V min, 36 V max)
13 / 4.5 W
17 / 7 W
19 / 9 W
18 / 8.5 W
23 / 13 W
28 / 17 W
60 / 36 W
97 / 75 W
124 / 100 W
According to EN61000‑3‑2, class A
Technical Data | en 39
2018.06 | V1.3 |