User manual BRAX X 1000

[. . . ] cies and the elimination of interference noise. 11 Specially manufactured, ultra-low-resistance elec15 Protection electronics. 16 , , Triple C" (Circuit Control Cards) for individual trolytic capacitors for optimum power supply to the amplifier transistors. circuit control of the amplifiers (see pages 8 and 9). 17 High-End ALPS potentiometers. 12 Ultra-fast signal processing with a newly developed Zero-Ohm Class A Driver. 18 Gold-plated RCA (cinch) inputs and outputs. 3 Installing the BRAX Amplifiers In order to maintain the quality of this product and ensure safe operation, we recommend that our amplifiers be installed by an authorized BRAX dealer. Installation by a qualified and accredited technician will qualify you for our special lifetime warranty. Your BRAX dealer will also assist you in selecting the correct additional components and in ensuring that proper consideration is given to all the safety and sound-related aspects. [. . . ] 3) should be connected to the central ground reference point (this is located where the negative terminal of the battery is grounded at the metal chassis of the vehicle), or to a bright bare-metal location on the vehicle chassis, i. e. It must be ensured that resistance values to the power sources (alternator, generator, battery) are minimized as excessive resistance can appreciably affect the audio quality and dynamics of the system. 3) is connected to the , , Remote" connection or the automatic antenna connection of the control unit (tuner/radio). The antenna connection is only activated if the control unit is switched ON. This ensures that, with the control unit switched off, the amplifier is also switched off to safe the battery. Fig. 3 4 5 1 2 3 1 Control lead (Remote) 2 Positive (+) 12V cable via fuse to battery 3 Ground cable 4 Positive (+) connection BRAX Power Stabilizer 5 Negative (-) connection BRAX Power Stabilizer Connection of the Signal Cables The BRAX amplifiers have RCA connectors for cinch cables which are connected to the pre-amplifier outputs or line outputs of the control unit (tuner/radio). Ask your dealer for the appropriate BRAX accessories. To the pre-amplifier Line output, control unit Fig. 4 To the next amplifier 6 Connection of the Speaker Cables Important!In addition, the amplifiers may be operated in both the stereo and mono (bridge) modes (see Fig. The mono/stereo selector switch is located at the bottom and can be operated once the metal cover has been removed (see Fig. The function of the switch is described on a label at the bottom of the amplifier. In addition to this stereo/mono capability, the BRAX amplifier modules can also be connected in the , , tri" mode, i. e. they can operate two stereo speakers from one pair of channels (left and right) and at the same time output to a third speaker in the mono mode (see Fig. For this, the selector switch at the bottom of the unit must be set at , , Stereo". Fig. 7: Mono mode/Bridge mode Mono input 7 Circuit Control Cards The operating range of the amplifier is determined by replaceable Circuit Control Cards (CCC). If no special requirements regarding the CCC's are specified when ordering, the amplifier is supplied as standard with CCC 1. CCC 1 is plugged in at socket position 3 which means that the amlifier and its outputs are operating in the full range (see list on page 9). 9 to 12, the amplifier operates with a subsonic filter having a rate of change of 30 dB/Oct. The various Circuit Control Cards available are indicated in the list on page 9. Example: If you wish to use the module as a subwoofer amplifier, with the subwoofer being operated at 90 Hz, you find the corresponding Circuit Control Card from the list (in this case CCC 5) and insert the card in your BRAX amplifier at position 2 of that channel which is to control the subwoofer - the left channel in the case of the mono mode (bridge mode). Now the amplifier will only process frequencies up to 90 Hz, with any frequencies above that value being suppressed at the rate of change of 18 dB/Oct. The remainder of the signal (residual aggregate dignal above 90 Hz) is now applied to the output of the amplifier. [. . . ] One channel may not be properly connected to the control unit or speaker. One channel has overheated - LED lights up red. Speaker wiring is faulty (short circuit between the wires or with the chassis of the vehicle); LED lights up yellow. Feedback interference from the chassis to the control unit (radio/tuner). Check the speaker wires and the speakers themselves for short-circuiting, and rectify as necessary. Select an optimum central ground point to serve the entire power supply system of your vehicle, including the control unit (radio/tuner). Please consult your dealer in relation to all other installation problems. [. . . ]