BRAX nOX4 DSP Bedienungsanleitung Seite 24

4 CPS - Colour Protection System
The LEDs show the operation status of the amplifier. Yellow (11) = malfunction: short-circuit at speaker output;
Red (12) = overheated: If the amp shuts off due to overheating it will take some time (depending on the outside tempera-
ture) until it turns on again.
5-6 Connectors for a BRAX Power Stabilizer
If a BRAX Power Stabilizer is connected to this terminal peak loads in the power supply will be eliminated. Thus, the am-
plifier has always enough power for its perfect performance.
Equipment and control units
7 Loudspeaker terminals
To connect the speaker cables. Never connect the loudspeaker cables with the car chassis ground. It damages your
amplifier. All speaker systems must be connected in-phase, it means plus to plus and minus to minus. Inverting plus and
minus will result in the loss of bass rendition. The positive terminal is marked on most speakers.
8 USB-Port
This mini USB input is used to connect a computer with the supplied USB cable. The DSP can be freely configured via this
USB port and the PC-Tool software.
9 MicroSD card reader
The Micro SD card reader can be used to download firmware and software updates as well as complete DSP setup files
containing all DSP settings. The setup file is copied automatically to the NOX4 DSP when the card's inserted. Copying is
shown by the Status-LED (10) blinking red; when it reverts to green or orange copying has been completed. Once the file
has been copied the card must be removed.
Attention: Do not remove the MicroSD card during copying.
The NOX4 DSP can handle two different setup files. These files have "af1", "ac1", "af2" or "ac2" suffixes. Use the control
button (10) to toggle between them.
Please note: Only one "af1" or "af2" setup file may be on the card. Firm- and software updates are available from www.
audiotec-fischer.com or www.helixhifi.com (US).
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