Black Hydra HDA-4.90, User Manual

Page: 11 / 13

20 21
- The LED indicator lights up in white - the amplifier is turned on (there is a voltage on the REM
terminal).
- The LED protection light PROTECT lights up in red - indicating overheating or short circuit. In the event
of a short circuit, the amplifier will return to the operating state after the head unit is turned off and on again.
In case of overheating, return to normal operation is possible only after the temperature has dropped
down.
INDICATION AND PROTECTION SYSTEMS
Low pass filter
Low pass / Hi pass switch
Hi pass filter
Bass boost on/off switch
Bass boost
Level control
Front panel: assignment of switches and adjustments
SPECIFICATIONS
Amplifier HDA-4.90
SPECIFICATIONS
HDA-4.90
Class AB
Number of Channels 4
RMS power 4 Ohm 4 х 90 W
RMS power 2 Ohm 4 х 140 W
RMS power 4 Ohm
(Bridge mode)
2 х 270 W
RMS power 2 Ohm
(Bridge mode)
2 х 430 W
Frequency Response 20-20000 Hz
Distortion <0.15% (1 kHz)
S/N ratio, A-weighted >90 dB
Input impedance 47 kOhm
Input sensitivity 0.1-8 V
Filter front / rear channels LP:40-160 Hz / HP:40-160 Hz
Fuses 40 А х 2
Dimensions LхWхH 360 х 237 х 57
Weight
4.5 Kg