INNOVATIVE AUDIO PERFORMANCES MADE IN GERMANY

X 1000 X 2000

INSTRUCTION MANUAL

Introduction

Contents
Dear Customer, Congratulations on your purchase of this high-quality BRAX product. You may be interested to know that we have been working now for 17 years in the development and production of top-quality high-end hifi components. Within just a few years, we have succeeded in giving the BRAX brandname world wide recognition. Our efforts in creating these quality products have also been rewarded through the award of various honours by the major car audio magazines, not to mention numerous world wide innovation prizes. In keeping with the tradition thus established, we have again provided our new BRAX amplifiers with everything they require in order to assume their rightful position as the pacesetters in the market. Offering the maximum possible level of engineering quality, they combine outstanding sound reproduction, solid craftmanship and the noblest of materials to provide a completely new dimension in individuality. We are proud to offer you this high-end product MADE IN GERMANY. and wish you many hours of enjoyment with your new BRAX amplifier. AUDIOTEC FISCHER GMBH
Introduction and Contents. Page 2 Technical Features. Page 3 Installing the BRAX Amplifiers.Page 4 Connection of the BRAX Amplifiers. Seite 5 Connection of the Power Supply. Page 6 Connection of the Signal Cables. Page 6 Connection of the Speaker Cables. Page 7 Circuit Control Cards CCC. Page 8 Operation of the Circuit Control Cards. Page 8 Circuit Control Cards Data Sheet. Page 9 Equipment Features and Control Elements. Page 10 What if?/Troubleshooting. Page 11 Technical Specifications. Page 12

Heinz Fischer

Technical Features
1 Ultra-low source resistance thanks to solid, gold-plated
terminals. For power supply cables up to gauge 4 / 25 mm2 and speaker cables up to gauge 10 / 6 mm2.
2 Interference-free power supply with current-compensated
interference suppression coil up to 200 A. Inductance: 2 x = 0.15 mH with ultra-low source resistance.
3 Exceptionally high efficiency with optimum stabilzation 9
thanks to separate input for BRAX Power Stabilizers, directly connected to the switching transistors.
4 Exceptionally high power pulse capacity with ultra-low 11 13
source resistance thanks to specially designed capacitors with 8-times contact of the foil winding.
5 Specially developed transformer manufactured from
new core materials with up to 80% higher efficiency giving outstanding performance combined with compact dimensions.
6 Special driver for switching transistors. A high-performance switching transistors. 8 Optimum power supply of the amplifier transistors by

Fig. 1

13 High-End MOS FET transistors with ultra-low
newly developed storage coil for bridging the switching delay dead times.
9 High efficiency thanks to fast power diodes with a
source resistance, enabling the connections of the loads with ultra-low output impedance values plus maximum power supply stability.

total rating of 120 A.

10 Fast bypass capacitors for processing high frequen-
14 Siemens high-current relay for internal and external
amplifier protection. 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.
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. Important: Before commencing installation, disconnect the car battery at the negative terminal. Once again we would urge you to have the installation work carried out by a specialist, as verification of correct installation and connection of the unit is a prerequisite for warranty cover of the BRAX by AUDIOTEC FISCHER Germany.

1. Install your amplifier at a dry location in the car where there is sufficient air circulation to ensure adequate cooling of the equipment. Also ensure that there is sufficient clearance available for making the cable connections and operating the controls. 2. For safety reasons, the amplifier must be secured in a professional manner. This is performed by means of four fixing screws (see Fig. 2) screwed into a mounting surface offering sufficient retention and stability. Before drilling the holes for the screws, carefully examine the area around the installation position and make sure that there are no electrical cables or components, hydraulic brake lines or any part of the petrol tank located behind the mounting surface - otherwise these could be damaged. You should be aware of the fact that such components may also be concealed in the double-skin trim panels/moldings.
Fig. 2: Installation in the car
Installation and Connection of BRAX Amplifiers X 1000 and X 2000
The above amplifier models may only be installed in motor vehicles which have a 12-volt negative terminal connected to the chassis ground. Any other system could cause damage to the amplifier and the electrical system of the vehicle.
In order to avoid cross-talk distortion, audio cables should never be laid together with electrical leads (with the exception of the screened BRAX POWER TRAX power supply cables). In order to ensure safe installation, use only high-quality
The positive lead from the battery for the complete system should be provided with a line fuse at a distance of max. 30 cm from the battery. The amperage rating of the fuse is calculated from the maximum total current input of the car/vehicle hifi system. Never bridge fuses or replace them with fuses with a higher amperage rating as such actions could lead to the destruction both of the amplifier and the entire electrical system of the vehicle. As already mentioned, the negative lead from the vehicle battery to the chassis should be disconnected in order to prevent the occurence of short-circuiting. Install the cabling in a manner which precludes any danger of the leads being exposed to shear, crushing or rupture forces. If there are sharp edges in the vicinity (e.g holes in the body work), all the cables must be cushioned and protected to prevent fraying. Never lay the power supply cables adjacent to leads and lines connecting other vehicle equipment (fan motors, fire detection modules, gas/petrol lines etc.).
connection materials, and comply with the recommended minimum cross sections/gauge values of the cables for the individual amplifier modules. As an aid to calculating the cross-sectional requirements of power cables which are not longer than 5 m, we advise a figure of max. 5 A per mm2. For the X 1000 BRAX amplifiers described, we recommend a minimum cross section of 12 mm2 /gauge 7, and for the X 2000 a minimum cross section of 20 mm2 /gauge 5 for the positive 12-volt supply lead and for the ground (chassis) cable. In order to ensure optimum sound quality and interference-free music reproduction, we recommend that installation be performed with BRAX POWER TRAX power supply cables. The remote lead should have a cross section of at least 1 mm2.

Connection of the Power Supply
The +12 volt power supply cable (see Fig. 3) should be connected directly to the positive terminal of the battery. A fuse should also be provided at a distance of max. 30 cm from the battery. The amperage rating of the fuse is calculated from the maximum total current input of the car/vehicle hifi system. The fuse holder appertaining to the amplifier is supplied with the amplifier module. This must be installed at a distance of max. 20 cm from the positive terminal of the amplifier and equipped with the original BRAX fuse provided. The fuse ratings are: for amplifier X 1000 = 60 A, for amplifier X 2000 = 100 A. Failure to comply nullifies the warranty. The ground (chassis) cable (see Fig. 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. an area which has been cleaned of all paint residues. 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. The Remote cable (see Fig. 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

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
Connection of the Speaker Cables
Important! Never connect the speaker cables to the vehicle chassis. This can destroy your amplifier. Ensure that all the speaker systems are connected in-phase, i.e. plus to plus and minus to minus. The positive terminal is indicated on most speakers. In addition, the amplifiers may be operated in both the stereo and mono (bridge) modes (see Fig. 7). The mono/stereo selector switch is located at the bottom and can be operated once the metal cover has been removed (see Fig. 15). 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. 6). For this, the selector switch at the bottom of the unit must be set at Stereo.

Fig. 5: Twin-channel mode/Stereo mode
Fig. 6: Triple-channel mode (Tri mode)
Fig. 7: Mono mode/Bridge mode

Mono input

Circuit Control Cards
The operating range of the amplifier is determined by replaceable Circuit Control Cards (CCC). If no special requirements regarding the CCCs 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). If CCC 1 is inserted at socket position 2, as described in Fig. 9 to 12, the amplifier operates with a subsonic filter having a rate of change of 30 dB/Oct. from 26 Hz, compared withe 18 dB/Oct. from 26 Hz in the case of position 1. 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. These residual signal can, for example, be supplied to another amplifier (linear feed) in proper phase relation for the mid range. At positions 1 and 2, the residual aggregate signal of the amplifier module is always applied to the amplifier outputs. Example: Low pass amplifier = Amplifier module output at high-pass. Full range amplifier = Amplifier module output at full range. At positions 3 and 4, the amplifier and also its outputs operate in the full range mode.
Handling the Circuit Control Cards
Removal of a Circuit Control Card 1. Unlock the catches left and right on the base of the card (Fig. 8).
Inserting the Circuit Control Card 1. Choose the position number from the CCC list which corresponds to the required function of the amplifier, and insert the card in the base so that the position number on the card is located at the top at the housing cover next to the arrows (see Figs. 11 and 12).

Fig. 8 2. Tilt the card approx. 15 in order to detach it from the base. Fig. 9
2. Insert the card at an angle of approx. 15 so that it fits properly into the socket. Press the card between the clips so that it is secure in the base (Fig. 10). Fig. 10

Fig. 11

Fig. 12
List of Circuit Control Cards (CCC)
Card No. CCC 1 CCC 2 CCC 3 CCC 4 CCC 5 CCC 6 CCC 7 CCC 8 CCC 9 CCC 10 CCC 11 CCC 12 CCC 13 CCC 14 CCC 15 CCC 16 CCC 17 CCC 18 CCC 19 CCC 20 CCC 21 CCC 22 CCC 23
Type A B B B B B B B B B B B B B B B B C C C C C C

Frequency in Hz 120

1 subsonic 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct. highpass 18 dB/Oct.
CCC Position No. 2 subsonic 30 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct. lowpass 18 dB/Oct. incl. subsonicfilter 26 Hz; 30 dB/Oct.
3 full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range full range
On request all triple Cs are available in 6 dB and 12 dB octave. Circuit Control Card Type A
Circuit Control Card Type B
Circuit Control Card Type C
Equipment Features and Control Elements
1 Signal Input Signal input for the left and right channels. Both inputs are marked red. Connect using an RCA cable with cinch connectors. 2 Signal Output Signal output for driving additional amplifier modules. The signal depends on the Circuit Control Card inserted per channel (see page 9). Both outputs are marked white. 3 Speaker Terminals The speakers are connected here in accordance with the required configuration (see Figs. 5 to 7). Cable sizes of up to 6 mm2 /gauge 10 can be employed for this purpose. 4 Input Sensitivity Level Controller The level controller enables the input sensitivity of the BRAX amplifiers to be adapted to the output voltage of the connected control unit (radio/tuner). This controller is not a volume control. Optimum setting of the level controller ensures you maximum audio enjoyment without those alltoo-common audible distortions and overshoot phenomena which have such an adverse effect on sound quality. 5 CPS-Color Protection System This shows the operating status of your amplifiers. When the amplifier module is switched on, both LEDs briefly light up red and then change to green. This means that both channels of the module are operational. In the event of a malfunction in the amplifier module or a short circuit at the output, the LED for the defective or short-circuited channel switches to yellow. In the event of an amplifier channel overheating, the associated LED switches to red. Green = operational; Yellow = malfunction in the amplifier, short circuit at the speaker output; Red = overheating. If the amplifier has tripped owing to overheating, it may take some time, depending on the ambient temperature, before it is re-activated. 6 Power Supply Terminal Terminal for connecting the positive 12-volt power supply cable, the ground/chassis lead and the remote lead.

7 External Connection for a BRAX Power Stabilizer 8 Power ON and Protection LEDs The power ON LED lights up green when the amplifier is switched on. In the event of one of the two channels overheating, the LED switches to red. 9 /10 Card Sockets Sockets are located at the bottom of the amplifier for plugging in the Circuit Control Cards for the left (9) and the right (10) channels. 11 Mono/Stereo Selector

Fig. 13

Fig. 14

7 Fig. 15

What if?/Troubleshooting

SYMPTOM

POSSIBLE CAUSES
REMEDIES Check the power supply fuses and cabling. Check the connection to the chassis metal Check the 12-volt remote output of your control unit (radio/tuner). Check that all the cables are properly inserted or screw-fixed. Check the wiring and replace if necessary. Check the Circuit Control Cards to ensure that they are properly inserted - see page 8. If necessary, install new cards. Check the wiring connections, or swap the channels around. Turn the amplifier off and allow it to cool for a good while. Then switch it on again. If the LED is still showing red, consult your dealer.
The amplifier cannot be switched 12-volt positive supply lead line on. interrupted. Amplifier not correctly connected to ground/chassis. Power supply to the remote terminal interrupted. LEDs light up green but no sound The cinch input cables are not insercan be heard. ted, or the speakers are not connected. There is a faulty connection between the RCA terminal and the control unit. The Circuit Control Cards have been taken out or are not properly plugged in. Only one channel is operating. 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. One speaker is faulty. Interference noise from the engine. Parasitics in the cinch cable. Parasitics in the power supply cabling. 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. Replace the defective speaker with a new one. Check the connections (screen/shield). Replace the cable with screened BRAX POWER TRAX cable. Consult your dealer. 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. Once again we would urge you to have your dealer perform the installation work. He will be able to guarantee to you that this high-quality amplifier has been correctly installed. Moreover, verification of correct installation by specialist is a prerequisite for the lifetime warranty of your amplifier.

Technical Specifications

X 1000

X 2000

Continuous power rating at 4 Ohm per channel. 2 x 100 Watts. 2 x 190 Watts Continuous power rating at 2 Ohm per channel. 2 x 225 Watts. 2 x 370 Watts Continuous power rating at 1 Ohm per channel. 2 x 295 Watts. 2 x 550 Watts Continuous power bridged into a 4 Ohm load. 1 x 375 Watts. 1 x 750 Watts Continuous power bridged into a 2 Ohm load. 1 x 550 Watts. 1 x 1115 Watts Total harmonic distortion (THD). < 0,002%. < 0,002% Signal to noise ratio. > 105 dB. > 105 dB Damping factor at 4 Ohms. > 1000.> 1000 Frequency response. 20 Hz - 20 kHz, +/- 0,2 dB. 20 Hz - 20 kHz, +/- 0,2 dB TIM Distortion. < 0,016 %. < 0,014 % Input sensitivity. 180 mV - 4,8 V. 180 mV - 4,8 V External fuse size. 60 A. 100 A Input impedance. 10 kOhms. 10 kOhms Circuit Control Card 1, Typ A*. 26 Hz/30 dB Subsonic filter. 26 Hz/30 dB Subsonic filter. and full range. and full range Dimensions (H x W x D) in mm. 53 x 238 x 381. 53 x 238 x 470 Weight net. 5,9 kg.7,4 kg
*Other Circuit Control Cards available on request.
Standard housing designs: bi-color; black/gold or silver/gold. Chrome- or gold housing available as an optional extra.
AUDIOTEC FISCHER GMBH Huenegraeben 26 D-57392 Schmallenberg Phone: +49-29 72--0 Fax: +49-29 72-97 88-88 e-mail: BRAX-AUDIOTEC@t-online.de

Contents

Page Introduction / Contents 9 Installation X2000.2 / X2400.2. 9 Connection X2000.2 / X2400.2. 10 Connection of the power supply X2000.2 / X2400.2. 10 Equipment features and control elements X2000.2. 11 - 12 Connection of speaker- and power cables X2000.2. 12 Equipment features and control elements X2400.2. 13 - 14 Connection of speaker- and power cables X2400.2. 14 Troubleshooting. 15 Technical specifications. 15

Heinz Fischer

Installation X2000.2 / X2400.2 / GRAPHIC EDITIONS
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. 1. Install your amplifier at a dry location in the car where there is sufficient air circulation to ensure adequate cooling of the equipment.Also ensure that there is sufficient clearance available for making the cable connections and operating the controls. 2. For safety reasons, the amplifier must be secured in a professional manner.This is performed by means of four fixing screws (see Fig. 1) screwed into a mounting surface offering sufficient retention and stability. Before drilling the holes for the screws, carefully examine the area around the installation position and make sure that there are no electrical cables or components, hydraulic brake lines or any part of the petrol tank located behind the mounting surface - otherwise these could be damaged. You should be aware of the fact that such components may also be concealed in the double-skin trim panels/moldings.
Important: Before commencing installation, disconnect the car battery at the negative terminal. Once again we would urge you to have the installation work carried out by a specialist, as verification of correct installation and connection of the unit is a prerequisite for warranty cover of the BRAX by AUDIOTEC FISCHER Germany.
Fig. 1 Installation in the car +
Connection X2000.2 / X2400.2 / GRAPHIC EDITIONS
The above amplifier models may only be installed in motor vehicles which have a 12-volt negative terminal connected to the chassis ground. Any other system could cause damage to the amplifier and the electrical system of the vehicle. The positive lead from the battery for the complete system should be provided with a line fuse at a distance of max. 30 cm from the battery. The amperage rating of the fuse is calculated from the maximum total current input of the car/vehicle hifi system. Never bridge fuses or replace them with fuses with a higher amperage rating as such actions could lead to the destruction both of the amplifier and the entire electrical system of the vehicle. As already mentioned, the negative lead from the vehicle battery to the chassis should be disconnected in order to prevent the occurence of short-circuiting. Install the cabling in a manner which precludes any danger of the leads being exposed to shear, crushing or rupture forces. If there are sharp edges in the vicinity (e.g holes in the body work), all the cables must be cushioned and protected to prevent fraying. Never lay the power supply cables adjacent to leads and lines connecting other vehicle equipment (fan motors, fire detection modules, gas/petrol lines etc.). In order to avoid cross-talk distortion, audio cables should never be laid together with electrical leads (with the exception of the screened BRAX POWER TRAX power supply cables). In order to ensure safe installation, use only high-quality connection materials, and comply with the recommended minimum cross sections/gauge values of the cables for the individual amplifier modules. As an aid to calculating the cross-sectional requirements of power cables which are not longer than 5 m, we advise a figure of max. 5 A per mm2. For the X 1000 and X 1400 BRAX amplifiers described and for the X 2000 and X 2400 a minimum cross section of 20 mm2 /gauge 5 for the positive 12-volt supply lead and for the ground (chassis) cable. In order to ensure optimum sound quality and interference-free music reproduction, we recommend that installation be performed with BRAX POWER TRAX power supply cables.The remote lead should have a cross section of at least 1 mm2.

Connection of the power supply X2000.2 / X2400.2 / GRAPHIC EDITIONS
The +12 volt power supply cable (see Fig. 2) should be connected directly to the positive terminal of the battery. A fuse should also be provided at a distance of max. 30 cm from the battery.The amperage rating of the fuse is calculated from the maximum total current input of the car/vehicle hifi system. The fuse holder appertaining to the amplifier is supplied with the amplifier module.This must be installed at a distance of max. 20 cm from the positive terminal of the amplifier and equipped with the original BRAX fuse provided. The fuse ratings are: for amplifier X 1000 = 60 A, for amplifier X 1400 = 60 A, for amplifier X 2000 = 100 A, for amplifier X 2400 = 100 A. Failure to comply nullifies the warranty. The ground (chassis) cable (see Fig. 2) 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. an area which has been cleaned of all paint residues. 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.The Remote cable (see Fig. 2) 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. 2
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
Equipment features and control elements X2000.2 / GRAPHIC EDITION

Fig. 3

Fig. 5
1-2 Signal Input Signal input for the right (1) and left (2) channels. Both inputs are marked red. Connect using an RCA cable with cinch connectors. 3 Speaker Terminals The speakers are connected here in accordance with the required configuration (see speaker connections). Cable sizes of up to 6 mm2/gauge 10 can be employed for this purpose. 4 Input Sensitivity Level Controller The level controller enables the input sensitivity of the BRAX amplifiers to be adapted to the output voltage of the connected control unit (radio/tuner). This controller is not a volume control. Optimum setting of the level controller ensures you maximum audio enjoyment without those all-too-common audible distortions and overshoot phenomena which have such an adverse effect on sound quality. 5 CPS-Colour Protection System This shows the operating status of your amplifiers. When the amplifier module is switched on, both LEDs change to green.This means that both channels of the module are operational. In the event of a malfunction in the amplifier module or a short circuit at the output, the LED for the defective or short-circuited channel switches to red. In the event of an amplifier channel overheating, the associated LED switches to red. Green = operational; Red = malfunction in the amplifier, short circuit at the speaker output; overheating. If the amplifier has tripped owing to overheating, it may take some time, depending on the ambient temperature, before it is re-activated.

9 Mono-Stereo Selector To set the operating mode of the amplifier. Position 1 - STEREO: If the amplifier operates in 2-channel mode the switch has to be set on stereo position and both inputs (1 and 2) must be used. Position 2 - BRIDGED-STEREO: If the amplifier operates in Mono mode the switch has to be set on Bridged position. In this case both channels works as one (Mono) channel. On the position Bridged both inputs A and B (1 and 2) must be used. Position 3 - BRIDGED-MONO/CHL: As on position BRIDGED-STEREO the amplifier operates in Mono mode where both channels work as one (Mono) channel. In position BRIDGED-MONO/CHL only input L (2) is used. This is necessary when only one mono signal is available. 10-11 Slope Selector - 12dB/24 dB To switch the crossover slope from 12 dB/octave auf 24 dB/octave.

Fig. 4

12 Lowpass/Bandpass Frequency Selector To switch the control range of the potentiometer (14) from 15 Hz to 300 Hz and from 250 Hz to 4500 Hz.

Fig. 7

Example: Lowpass 15 Hz - 300 Hz 12dB/octave
6 Power Supply Terminal Terminal for connecting the positive 12-volt power supply cable, the ground/chassis lead and the remote lead. 7 External Connection for a BRAX Power Stabilizer 8 Power ON and Protection LEDs The power ON LED lights up green when the amplifier is switched on. In the event of one of the two channels overheating, the LED switches to red.

Fig. 8

Example: Lowpass 250 Hz - 4500 Hz 12dB/octave

Fig. 10

Example: Highpass 250 Hz - 4500 Hz 12dB/octave
13 Highpass Frequency Selector To switch the control range of the potentiometer (15) from 15 Hz to 300 Hz and from 250 Hz to 4500 Hz.
14 Control for frequency range Lowpass To adjust the crossover frequency from 15 Hz to 4,5 kHz. 15 Control for frequency range Highpass To adjust the crossover frequency from 15 Hz to 4,5 kHz.

Fig. 9

Example: Highpass 15 Hz - 300 Hz 12dB/Oktave
16 Selector for Lowpass/Bandpass, Linear/Full Range) and Highpass To switch the internal active crossover to Highpass / Full Range (linear) or Lowpass. If this selector is set on Highpass, the frequency range can be adjusted with selector 13 and the exact frequency can be adjusted with control 15. In addition the slope can be adjusted with selector 11. At selector position Lowpass/Bandpass the Highpass is always active. That means a Bandpass is built in any case. With selector 13 and control 15 adjust the Highpass and with selector 13 and control 14 adjust the Lowpass. Thus every desired Bandpass between 15 Hz and 4500 Hz can be adjusted. Caution! To avoid a loss of sound pressure make sure that the crossover frequencies of High- and Lowpass are separated by 2 octaves when building a Bandpass. That means: If the lowpass signal is adjusted to 320 Hz the highpass should be adjusted 2 octaves lower on approx. 80 Hz. (1 octave = double frequency or half frequency) If a subwoofer is connected we recommend to use highpass control 20 as variable subsonic filter or to turn control 20 counter-clockwise to 15 Hz to get a subsonic filter.

Connection of speaker- and power cables X2000.2 / GRAPHIC EDITION
Fig. 11 2-Twin-channel/Stereo mode Switch 9 in position 1 Fig. 13 Mono mode with mono signal Switch 9 in posiition 3

Mono input

Fig. 12 Mono mode with stereo signal Switch 9 in position 2
Important! Never connect the speaker cables to the vehicle chassis. This can destroy your amplifier. Ensure that all the speaker systems are connected in-phase, i.e. plus to plus and minus to minus. The positive terminal is indicated on most speakers. In addition, the amplifiers may be operated in both the stereo(see Fig. 11) and mono (bridge) modes (see Fig. 12). The mono/stereo selector switch is located at the bottom and can be operated once the metal cover has been removed.The function of the switch is described on a label at the bottom of the amplifier.
Equipment features and control elements X2400.2 / GRAPHIC EDITION

Fig. 14

7 Power Supply Terminal Terminal for connecting the positive 12-volt power supply cable, the ground/chassis lead and the remote lead. 8 External Connection for a BRAX Power Stabilizer 9 Power ON and Protection LEDs The power ON LED lights up green when the amplifier is switched on. In the event of one of the two channels overheating, the LED switches to red.

Fig. 17

1-2 Signal Input Signal input for the right (1) and left (2) channels. Both inputs are marked red. Connect using an RCA cable with cinch connectors. 3-4 Speaker Terminals The speakers are connected here in accordance with the required configuration (see speaker connections). Cable sizes of up to 6 mm2/gauge 10 can be employed for this purpose. 5 CPS-Colour Protection System This shows the operating status of your amplifiers. When the amplifier module is switched on, both LEDs change to green.This means that both channels of the module are operational. In the event of a malfunction in the amplifier module or a short circuit at the output or overheating, the LED for the defective or short-circuited channel switches to red. Green = in operation; Red = malfunction in the amplifier, short circuit at the speaker output; overheating. If the amplifier has tripped owing to overheating, it may take some time, depending on the ambient temperature, before it is re-activated. Fig. 15
10-11 Slope Selector - 12dB/24 dB To switch the crossover slope from 12 dB/octave auf 24 dB/octave. 12 Lowpass/Bandpass Frequency Selector To switch the control range of the potentiometer (14) from 15 Hz to 300 Hz and from 250 Hz to 4500 Hz. Examples: see page Highpass Frequency Selector To switch the control range of the potentiometer (15) from 15 Hz to 300 Hz and from 250 Hz to 4500 Hz. Examples: see page 12

14 Control for frequency range Lowpass To adjust the crossover frequency from 15 Hz to 4,5 kHz. 15 Control for frequency range Highpass To adjust the crossover frequency from 15 Hz to 4,5 kHz. 16 Selector for Lowpass/Bandpass, Linear/Full Range) and Highpass To switch the internal active crossover to Highpass / Full Range (linear) or Lowpass. If this selector is set on Highpass, the frequency range can be adjusted with selector 13 and the exact frequency can be adjusted with control 15. In addition the slope can be adjusted with selector 11. At selector position Lowpass/Bandpass the Highpass is always active. That means a Bandpass is built in any case. With selector 13 and control 15 adjust the Highpass and with control 14 adjust the Lowpass. Thus every desired Bandpass between 15 Hz and 6000 Hz can be adjusted. Caution! To avoid a loss of sound pressure make sure that the crossover frequencies of High- and Lowpass are separated by 2 octaves when building a Bandpass. That means: If the lowpass signal is adjusted to 320 Hz the highpass should be adjusted 2 octaves lower on approx. 80 Hz. (1 octave = double frequency or half frequency)
6 Input Sensitivity Level Controllers The level controllers enable the input sensitivity of the BRAX amplifiers to be adapted to the output voltage of the connected control unit (radio/tuner). These controllers are not volume controls. Optimum setting of the level controller ensures you maximum audio enjoyment without those all-too-common audible distortions and overshoot phenomena which have such an adverse effect on sound quality.

Fig. 16

If a subwoofer is connected we recommend to use highpass control 20 as variable subsonic filter or to turn control 20 counter-clockwise to 15 Hz to get a subsonic filter.
Fig. 18 Switches are located at the boottom of the amplifier
Fig. 18 Mono-Stereo Selector To set the operating mode of the amplifier. Position 1 - STEREO: If the amplifier operates in 4-channel mode the switch has to be set on stereo (1) position and both inputs (1 and 2) are used. Position 2 - MONO/BRIDGED: If the amplifier is operated in mono mode with the front and rear channels the switch of either channel has to be set to the Bridged-Stereo position (2). In this mode both channels work as one (Mono Rear or Mono Front). In position Bridged-Stereo both inputs (1 and 2) of either bridged channel pair must be used. Position 3 - BRIDGED-MONO/CHR: As on position BRIDGED-STEREO the amplifier operates in Mono mode where both channels work as one (Mono) channel. In position BRIDGED-MONO/CHR only input L (2) is used. This is necessary when only one mono signal is available.

Connection of speaker- and power cables X2400.2 / GRAPHIC EDITION
Fig. 19 4-channel mode Fig. 22 2-channel mode with woofer stereo signal

Fig. 20

3-channel mode with woofer stereo signal

Fig. 23

2-channel mode with woofer mono signal

Fig. 21

3-channel mode with woofer mono signal
Important! Never connect the speaker cables to the vehicle chassis. This can destroy your amplifier. Ensure that all the speaker systems are connected in-phase, i.e. plus to plus and minus to minus.The positive terminal is indicated on most speakers. In addition, the amplifiers may be operated in the stereo(see Fig. 22 / 23), 3-channel (see fig. 20 / 21) and 4-channel modes (see Fig. 19). The mono/stereo selector switch is located at the bottom and can be operated once the metal cover has been removed.The function of the switch (stereo or mono) is described on a label at the bottom of the amplifier (see fig. 18)

Troubleshooting

SYMPTOM The amplifier cannot be switched on. LEDs light up green but no sound can be heard. POSSIBLE CAUSES 12-volt positive supply lead line interrupted. Amplifier not correctly connected to ground/chassis. Power supply to the remote terminal interrupted. The cinch input cables are not inserted, or the speakers are not connected. There is a faulty connection between the RCA terminal and the control unit. REMEDIES Check Check Check Check the power supply fuses and cabling. the connection to the chassis metal the 12-volt remote output of your control unit (radio/tuner). that all the cables are properly inserted or screw-fixed.
Check the wiring and replace if necessary.
Only one channel is operating.
One channel may not be properly connected to the con- Check the wiring connections, or swap the channels around. trol unit or speaker. One channel has overheated - LED lights up red. Turn the amplifier off and allow it to cool for a good while. Then switch it on again. If the LED is still showing red, consult your dealer. Speaker wiring is faulty (short circuit between the wires Check the speaker wires and the speakers themselves for short-circuiting, or with the chassis of the vehicle); LED lights up red. and rectify as necessary. One speaker is faulty. Parasitics in the cinch cable. Parasitics in the power supply cabling. Replace the defective speaker with a new one. Check the connections (screen/shield). Replace the cable with screened BRAX POWER TRAX cable. Consult your dealer. Feedback interference from the chassis to the control Select an optimum central ground point to serve the entire power supply unit (radio/tuner). system of your vehicle, including the control unit (radio/tuner).

Interference noise from the engine.
Please consult your dealer in relation to all other installation problems. Once again we would ask you to have your dealer perform the installation work. He will be able to guarantee to you that this high-quality amplifier has been correctly installed. Moreover, verification of correct installation by specialist is a prerequisite for the lifetime warranty of your amplifier.

Technical Specifications

X2000.2 Continuous power rating at 4 Ohm per channel at 2 Ohm per channel bridged into 4 Ohm load Total harmonic distortion (THD) Signal to noise ratio Damping factor at 4 ohms Frequency response TIM Distortion Input Sensivity External fuse size Input impedance Dimensions (H x W x D) in mm Weight net. X2400.2 X2000.2 GRAPHIC EDITION 2 x 190 Watts 2 x 370 Watts 1 x 740 Watts < 0,002% > 105 dB > Hz-20 kHz, +/- 0,2 dB < 0,016 % 300 mV-7,5 V 100 A 10 kOhms 53 x 238 x 470 7,4 kg 4 x 110 Watts 4 x 200 Watts 2 x 400 Watts < 0,002% > 105 dB > Hz-20 kHz, +/- 0,2 dB < 0,014 % 300 mV-7,5 V 100 A 10 kOhms 53 x 238 x 470 7,4 kg 2 x 265 Watts 2 x 440 Watts 1 x 880 Watts < 0,001% > 110 dB >Hz-20 kHz, +/- 0,2 dB < 0,009 % 300 mV-7,5 V 100 A 10 kOhms 53 x 238 x 473 8,2 kg X2400.2 GRAPHIC EDITION 4 x 135 Watts 4 x 235 Watts 2 x 470 Watts <0,001% >110dB >Hz-20 kHz, +/- 0,2 dB < 0,009 % 300 mV-7,5 V 100 A 10 kOhms 53 x 238 x 473 8,2 kg
AUDIOTEC FISCHER GmbH Hnegrben Schmallenberg/Germany Tel.: +Fax: +info@audiotec-fischer.com www.audiotec-fischer.com