Match PP 62DSP 5-6-Channel Amplifier User Manual

Match PP 62DSP 5-6-Channel Amplifier User Manual

Congratulations!
Dear Customer,
Congratulations on your purchase of this innovative and high-quality MATCH product. With the PP 62DSP, MATCH is setting new standards in the evolving plug-and-play market. We wish you many hours of enjoyment with your new MATCH PP 62DSP.
Yours, AUDIOTEC FISCHER

General instructions

General installation instructions for MATCH components
To prevent damage to the unit and possible injury, read this manual carefully and follow all installation instructions. This product has been checked for proper function before shipping and is guaranteed against manufacturing defects. Before starting your installation, disconnect the battery’s negative terminal to prevent damage to the unit, fire, and/or risk of injury. For proper performance and to ensure full warranty coverage, we strongly recommend getting this product installed by an authorized MATCH dealer. Install your PP 62DSP in a dry location with sufficient air circulation for proper cooling of the equipment.

The amplifier should be secured to a solid mounting surface using proper mounting hardware. Before mounting, carefully examine the area around and behind the proposed installation location to ensure that there are no electrical cables or components, hydraulic brake lines, or any part of the fuel tank located behind the mounting surface. Failure to do so may result in unpredictable damage to these components and possibly costly repairs to the vehicle.

General instruction for connecting the PP 62DSP amplifier
The PP 62DSP amplifier may only be installed in motor vehicles that 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. Use only the enclosed MATCH cable for connection of the PP 62DSP. The use of other cables can result in damage to the amplifier, the head unit/car radio, or the connected loudspeakers!

Before installation, plan the wire routing to avoid any possible damage to the wire harness. All cabling should be protected against possible crushing or pinching hazards. Also avoid routing cables close to potential noise sources such as electric motors, high-power accessories, and other vehicle harnesses. The fuse may only be replaced by an identically rated fuse (20 A) to avoid damage to the amplifier.

Connectors and control units

1. Subwoofer Output
   Connector for a passive MATCH PP subwoofer.

2. Input Sensitivity
   Control for adjusting the input sensitivity of the highlevel inputs.

3. Clipping LED
   This LED lights up red if one of the analog inputs is overdriven.

4. System Connector
   Connector for the MATCH cable harness. Make sure that you only use the original cable that comes with the amplifier to connect the PP 62DSP to your car radio.

5. USB Input (slave only)
   Connect the PP 62DSP to your PC.

6. Control pushbutton
   Use this button to either switch between the setups or initiate a reset of the device.

7. Status LED
   This LED indicates the operating mode of the amplifier and which setup has been chosen.

8. MicroSD card reader
   Will be used for uploading vehicle-specific setups to the PP 62DSP.

9. Rem In / Out
   The remote input can be used to switch on the PP 62DSP. The remote output has to be used to switch on external amplifiers that are connected to the RCA Line Output.

10. RC Switch Aux / Byp
    This switch determines the functionality of the “MODE switch” of an optional available URC remote control.

11. Control Input
    Multifunction interface e.g. an optional remote control or other MATCH PP 62DSP accessory.

12. RC Control On / Off Use this control to activate resp. deactivate the functionality of a remote control.

13. Line Output
    Line outputs for connecting external amplifiers. Make sure that the remote output (Rem Out) is used to turn on these devices.

Initial start-up and functions

1. Subwoofer Output
   This output provides for the connection of a passive Plug & Play subwoofer like the MATCH PP 7E-D or PP 7S-D. The car-specific setups on our website always mention the recommended subwoofer type. When using a subwoofer, we strongly recommend connecting the PP 62DSP directly to a 12 Volt source. Refer to connection instructions in section 3b, page 21.

2. Input Sensitivity
   This potentiometer allows to increase in the input sensitivity of the highlevel inputs up to 6 dB. This function should only be used if the signal source has a low output volume. This is not a volume control, it´s only for adjusting the amplifier gain. The control range of the highlevel input goes from 11 Volts (max. CCW position) to 5 Volts (max. CW position).

3. Please note: The input sensitivity ex-works is set to 11 Volts (max. CCW position).

4. Clipping LED
   This LED lights up red if one of the four high-level inputs is overdriven. The LED has no function when an input signal is applied to the MEC module or if a car-specific sound setup is used. As soon as the LED lights up, the input sensitivity should be reduced by turning the Input Sensitivity knob counter- clockwise until the LED goes out.

5. System Connector
   Please use this terminal only in combination with the cable harness that is included in the delivery of the amplifier or from the MATCH accessories program. Never use any other harnesses to connect the MATCH PP 62DSP to your car radio. Caution: The use of other harnesses than the one that is supplied with the amplifier may cause severe harm to the amplifier, your car radio/head unit, and your loudspeakers. In any case, the warranty will be void!

6. USB Input
   Connect your personal computer to the PP 62DSP using the provided USB cable. The required DSP PC-Tool software to configure this amplifier can be downloaded from the Audiotec Fischer website www.audiotec- fischer.com.
   Please note: It is not possible to connect any USB storage devices.

7. Control pushbutton
   The Control push button allows the user to toggle between the two memory areas. Setups with the extension “af1” or “ac1” will be automatically written to the first storage position whereas setups with the extension “af2” or “ac2” will be written to the second storage position. To switch between the setups, the button has to be pressed and held for approx. 1 second. Switching is indicated by a singular red flash of the Status LED. Pressing the button for 5 seconds completely erases the internal memory. This is indicated by a constant flashing of the Status LED.
   Attention: After erasing the setups from memory the PP 62DSP will not reproduce any audio output until a new setup is loaded.

8. Status LED
   The Status LED indicates the operation mode of the amplifier. Green means that setup 1 (af1) is loaded, and orange means that setup 2 (af2) is loaded. If it lights up red constantly, the undervoltage protection is active. A flashing red light indicates that no setup is loaded. In that case please load a new setup via the DSP PC-Tool software or the internal MicroSD card reader.

9. MicroSD card reader
   The MicroSD card reader allows the user to easily copy car-specific setups to the amplifier. First, you have to download a sound setup (e.g. from our website www.audiotec-fischer.com) and copy it to a MicroSD card. After having inserted the MicroSD card into the card slot of the PP 62DSP, the file will be automatically copied to the internal memory of the amplifier. While the copy is in progress, the Status LED flashes red. It changes to green or orange once the process is finished. Now the MicroSD card can be safely removed.
   Attention: Never remove the MicroSD card while the copy process is in progress! The PP 62DSP can manage two different setup files. They are marked with the file extensions “.af1” / “ac1” (stored in memory 1 of the amplifier) or “.af2” / “ac2” (stored in memory 2 of the amplifier).
   Please note: Do not store more than one “af1” or “ac1” and one “af2” or “ac2” setup file on the MicroSD card at a time.
   You can download the car-specific setup files to a MicroSD card at www .audiotec-fischer.com. Please be aware that it is not possible to modify these setups with the DSP PC-Tool software!
   Notice: The DSP PC-Tool software will automatically install the latest firmware on the last selected memory location if your device is not up-to- date.

10. Rem In / Out
    Rem In: The remote input has to be used to turn on/off the PP 62DSP if the signal source which is connected to the highlevel inputs is not activating the “automatic turn-on” function or if the amplifier shall only be activated/deactivated by a remote signal applied to the Rem In input. To deactivate the “automatic turn-on” function read the description on page 22, “Configuration of the remote input”.
    Rem Out: We strongly recommend using the remote output for turning on/off additional amplifiers that are connected to the Line Output of the PP 62DSP. This is essential to avoid any undesired pop noises during the DSP boot or software update process. Additionally, this output will be turned off when the “Power Save Mode” (see page 19) of the amplifier is active.

11. RC Switch Aux / Byp This switch is for configuring the MODE switch of a URC remote control while using a car-specific setup.
    Please note: If the URC remote control is not activated in the DSP PC- Tool or by using the RC Control switch the RC Switch is without functionality. This switch is without functionality in combination with the remote control DIRECTOR.
    RC Switch – Aux: If the RC Switch is set to the “Aux” position, the MODE switch on the URC remote control allows it to manually toggle between the radio signal and the input signal of an optionally installed MEC module.
    Attention: This function is only usable if an MEC module is installed. RC Switch – Bypass: If the RC Switch is set to the “Byp” position the function of the MODE switch on the URC remote control will change. In this case, it is possible to switch between the original sound system without any DSP processing and the optimized MATCH sound setup.

12.  Control Input
    This multi-functional connector is designed for MATCH accessory products like a remote control which allows to adjustment of several features of the amplifier. Depending on the type of remote control, the functionality at first has to be defined in the “Device Configuration Menu” of the DSP PC-Tool software or on the remote control itself. Note that it is necessary to activate a connected remote control either by setting the RC Control switch to the “On” position or by the appropriate command in the “Device Configuration Menu” of the DSP PC-Tool software.
    Attention: It is not possible to use car-specific sound setups in combination with the remote control DIRECTOR.
    Please note: If you activate the remote control in the DSP PC-Tool software the RC Control switch will automatically be deactivated. To reactivate the switch you have to cancel this option in the DSP PC-Tool software.
    Please note: As long as a URC remote control and car-specific setups are used, the functions of the remote control are defined as follows and cannot be changed:
    CONTROL I: Adjusting the volume of the installed MEC module – eliminates the need to adjust the volume on the external source.
    CONTROL II: Adjusting the volume of the subwoofer output.
    MODE switch: If the RC Switch is set to the „Byp” position, it is possible to toggle between the original sound system without any DSP processing and the optimized MATCH sound setup. The DSP sound setup is deactivated when the switch on the remote is pressed. If the RC Switch is set to the „Aux” position, the function of the switch on the remote control will change. In this case, it is possible to manually switch between the radio signal and the input signal of an optionally installed MEC module. The input of the MEC module is activated when the switch on the remote is pressed.

13. RC Control On / Off
    The RC Control activates resp. deactivates the functionality of a connected URC remote control. This switch is primarily used in combination with car- specific setups.
    Please note : As soon as the remote control is activated in the DSP PC- Tool software the RC Control switch has no function anymore.

14. Line Output
    The two Line Outputs A and B are floating-ground low-level outputs (max. 3 Vrms) for connecting additional power amplifiers. Specially designed “Balanced Dual Audio Transformers” avoid any ground loops that may cause undesired alternator noise. Please make sure that you always turn on/off external amplifiers using the remote output (Rem Out) of the PP 62DSP. Never directly control the external amps by a signal from the ignition switch of your car! Additionally, this output will be turned off when the “Power Save Mode” of the amplifier is active.

Unique Features of the PP 62DSP

Smart highlevel input ADEP.2
The latest generation of OE car radios incorporates sophisticated possibilities for diagnosing the connected speakers. If a usual amplifier is hooked up, failure messages and loss of specific features (e.g. fader function) are often the result. Additionally, new power stage concepts in some radios may cause asymmetrical output signals which lead to distortion in the AD converters.

The new ADEP.2 circuit (Advanced Diagnostics Error Protection, 2nd generation) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily. Power Save Mode The “Power Save Mode” is incorporated in all car-specific setups as well as in the basic setup of the DSP PC-Tool software. It allows for a significant reduce the power consumption of the PP 62DSP (or any additional connected amplifier) once there’s no input signal for more than 60 seconds. Please note that in many up-to-date cars with “CAN” or any other internal bus structures the car radio (and therefore the PP 62DSP as well) may remain “invisibly” turned on for up to 45 min. after leaving the car!

Once the “Power Save Mode” is active the output stages of the PP 62DSP and its remote output (Rem Out) will be turned off, thus reducing the current draw to less than 250 mA. The amp will turn again to full operation within 2 sec. if a music signal is applied. It is possible to either modify the turn-off time of 60 sec. or completely deactivate the “Power Save Mode” via the DSP PC Tool.

MicroSD
The MicroSD card reader allows you to easily configure the DSP inside the amplifier without the need to directly connect ato personal computer. A large number of car-specific setups are available for free on www.audiotec- fischer.com. Simply download your desired setup and copy it to any MicroSD card. Finally, insert the MicroSD card into the PP 62DSP and the copy process will start automatically. After that, the amplifier is perfectly programmed to dramatically upgrade the sound quality of your car factory audio system.

Installation of car-specific sound setup files
The PP 62DSP offers the easy option of configuring the internal DSP amplifier to a specific vehicle type. All you need is a MicroSD or MicroSDHC memory card. The card may contain other data such as photos from a digital camera. However, note that it may contain only one “af1” and one “af2” setup file at a time.

The 3 most important steps

1. Access the Audiotec Fischer website www.audiotec-fischer.com. Go to MATCH → Sound setups and select PP 62DSP, driver position, and your vehicle make. Next, you can choose an appropriate sound setup file from the list and download it.
2. Transfer the downloaded setup onto your MicroSD card. You’ll need less than 200 kB of free memory space.
3. Finally, insert the card into the MicroSD slot of the PP 62DSP. The Status LED will blink red for a few seconds. After the upload process is finished the LED stops flashing and the MicroSD card should be removed.

Installation

The MATCH PP 62DSP must be connected to the head unit (car radio) as follows:
Caution: Carrying out the following steps will require special tools and technical knowledge. To avoid connection mistakes and/or damage, ask your dealer for assistance if you have any questions, and follow all instructions in this manual (see page 15).

1. After removing the car radio from the dash using appropriate tools, disconnect the vehicle harness from the car radio. Next, connect the vehicle harness to the female connector of the MATCH cable harness, see Fig. 3 1. Depending on your car an additional car-specific adaptor may be required. A list of all cars and the respective adaptors can be found on www.audiotec-fischer.com.

2. Connect the male connector of the MATCH cable harness or the car-specific adaptor to the car radio, see Fig. 3 2.

3. There are two alternatives which are described in sections 3a and 3b to connect the PP 62DSP to power. As long as a subwoofer is connected to the PP 62DSP, we recommend using alternative 3b (depending on the wire gauge and fuse rating of the vehicle’s harness). Short interrupts in music reproduction at high listening levels are an indicator of significant voltage drops in the power supply due to insufficient vehicle cable harness dimension.

   • 3a. Power supply via vehicle cable harness: In this case, the PP 62DSP will be directly powered by the vehicle´s car radio harness. Carefully check its wire gauge and fuse rating first. If the fuse rating is significantly lower than 20 A then we strongly recommend option 3b. Depending on the vehicle type, the connections for switched (ACC+) positive terminal and constant positive terminal can be different. The PP 62DSP must not be powered using the switched positive terminal as this might result in damage to the vehicle‘s electronic circuits. Verification of the right terminal must be made before activation of the unit at connections E (yellow) and F (blue) with a voltmeter. The constant positive wire is identified by a reading of 12 V even when the vehicle is turned off. After measuring, connect cable G to the constant positive terminal (compare fig. 4). If you are unable to identify the appropriate wires, please ask your dealer for help.
   • 3b. Direct power supply via the battery: If the power supply of the PP 62DSP cannot be provided via the vehicle cable harness (max. 20 A), you have to connect it directly to the car battery. To do so, disconnect joints H (ground) and I (+12 V) of the MATCH harness (refer to fig. 5). Next, the ground cable (min. AWG14 / 2.5 mm²) should be connected to a common ground reference point (this is located where the negative terminal of the battery is grounded to the metal body of the vehicle), or to a prepared metal location on the vehicle chassis, i.e. an area which has been cleaned of all paint residues. Always disconnect the car battery’s negative terminal before you execute the following steps. Connect the +12 V power cable (min. AWG14 / 2.5 mm²) to the positive terminal of the battery. The positive wire from the battery to the
     PP 62DSP harness connection needs to have an inline fuse (20 A) at a distance of no more than 12 inches (30 cm) from the battery. Insulate the now unused connections of the MATCH harness with tape or other appropriate material. You can now reconnect the car battery. If one of the cable extensions PP-EC 11, PP-EC 25, or PP-EC 40 will be used, the separate power supply has to be connected to the extension cable.

4. Connect the MATCH harness to the MATCH PP 62DSP, see Fig. 3 3.

Adjustment of the input sensitivity
The Input Sensitivity potentiometer (item 2 page 17) is used to adapt the input sensitivity to the output voltage of the connected head unit/car radio. This control is no volume control and is only for adapting the input sensitivity. Adjustments with this potentiometer only affect the high-level inputs! The ex-works setting of the highlevel input sensitivity of the PP 62DSP is the maximum counter-clockwise position. This is the best setting for most applications. Only if the car radio doesn’t deliver enough output level, the input sensitivity should be increased by turning the rotary potentiometer carefully clockwise. If car-specific setups are used the Clipping LED has no function.

In this case, the right setting has to be found by ear and adjusted that way that no distortion is audible. In combination with the DSP PC-Tool software, the Clipping LED is an indicator for overmodulation. Please make sure that you choose an appropriate sensitivity setting so that the LED never lights up.

Caution
The PP 62DSP amplifier has a higher power output than the car radio itself. Most of the OE speakers in the car will be able to handle this extra power easily. Nevertheless, please take care when you crank up the input sensitivity. If you hear strong distortion, please reduce the volume to an appropriate level to avoid damaging your speakers.

Note – Cars equipped with MOST bus
In cars equipped with the MOST bus structure, it is mandatory to unplug the fiber-optic cable from the original car radio connector and insert it into the car radio connector of the MATCH cable harness which has a dedicated recess for this. Configuration of the remote input: The PP 62DSP will be turned on automatically if the highlevel inputs are used or if a signal is applied to the Rem In terminal. The “Automatic Remote” switch allows to deactivation of the automatic turn-on feature.

The feature should be deactivated if there are e.g. disturbing noises while switching on/off the amplifier.
Note : If the automatic turn-on function is deactivated it is mandatory to use the Rem In terminal to power up the amplifier! The highlevel signal will be ignored in this case.
Note: The activation of the amplifier via speaker input is activated ex works. To deactivate the automatic turn-on feature you have to open the device and change the position of the “Automatic Remote” switch. Therefore dismantle the side panel (where the USB input is located) by removing the Phillips screws. Now you can pull out the bottom plate and get access to the switch. The switch is located near the MATCH Extension Card slot (see marking in the following picture).

MEC slot
Position 1: Activation via speaker input is enabled (ex-works).
Position 2: Activation via speaker input is disabled.

Fig. 3 Connection of the amplifier to the car radio.

1. The ISO female connector will either be plugged into the vehicle harness that has been disconnected from the car radio or a car-specific adaptor.
2. The ISO male connector will either be plugged into the car radio or a car-specific adaptor.
3. The 20-pole connector will be plugged into the MATCH PP 62DSP amplifier.
4. Optional: car-specific adaptor – such an adaptor may be required if the ISO connectors of the provided PP 62DSP cable harness do not fit into your car radio.

Fig. 4 MATCH cable harness – switching of constant plus and switched plus terminal.

1. ISO female connector of the MATCH cable harness
2. ISO male connector of the MATCH cable harness
   • E Yellow wire – ex works connected to the power supply cable of the amplifier
   • F Blue wire – ex works left open
   • G +12 Volts power wire of the amplifier – make sure that this is connected to the constant plus terminal of your car.

Fig. 5 Possibility for direct power supply from the battery.

This side of the cable harness will be directly connected to the car’s battery. Therefore you have to separate the cable joints I and H. After separating the joints I and H the unused open wire ends have to be properly insulated with tape or other appropriate material. The +12 Volts wire has to be connected to the positive terminal of the car’s battery. H The ground wire has either to be connected to the negative terminal of the battery or directly to the car’s chassis.

Connection to a PC

It is possible to freely configure the MATCH PP 62DSP with our DSP PC-Tool software. The user interface is designed for easy handling of all functions and allows an individual adjustment of each of the 8 DSP channels. Before connecting the amplifier to your PC visit our website and download the latest version of the DSP PC-Tool software. Check from time to time for software updates. You will find the software and the respective user manual on www .audiotec-fischer.com. We strongly recommend carefully reading the user manual (Sound Tuning Magazine) before using the software for the first time to avoid any complications and failures. In the following the most important steps on how to connect and the first start-up are described:

1. Download the latest version of the DSP PC-Tool software (available on our website www.audiotec-fischer.com install it on your computer.
2. Connect the amplifier to your computer using the USB cable that is included in the delivery. If you have to bridge longer distances please use an active USB extension cable with an integrated repeater and no passive extension.
3. Turn on the amplifier and start the software after the Status LED lights up green. The operating software will be updated automatically to the latest version if it is not up-to-date.
4. Now you can configure your MATCH PP 62DSP amplifier with our intuitive DSP PC-Tool software. Nevertheless, interesting and useful hints can be found e.g. in our “Sound Tuning Magazine”, which can be downloaded for free from our website.

Important
We highly recommend setting the volume of your car radio to a minimum position during the first start-up. Additionally, no device should be connected to the Line Outputs until general settings in the DSP PC-Tool software have been made. Especially if the PP 62DSP will be used to drive fully active speaker systems, a wrong setup can destroy your tweeters right away.

1. Load and save
2. Main menu
3. Channel configuration
4. Highpass filter
5. Lowpass filter
6. Time Alignment
7. Output level
8. Frequency graph
9. Range of frequency graphs
10. Equalizer
11. EQ fine adjustment

Installation of a MATCH Extension Card
It is possible to extend the functionality of the MATCH PP 62DSP amplifier by inserting an optional MATCH Extension Card (MEC) – for example a Bluetooth® Audio Streaming module, an optical digital input, or an AUX input. To install a MATCH Extension Card it is necessary to remove the side panel of the PP 62DSP and replace it with the new side panel that comes with the MEC.

Attention
Install the MEC module only in the designated device and its specific slot. Using the MEC module in other devices or slots can result in damage to the MEC module, the amplifier, the head unit/car radio, or other connected devices! Read the following steps on how to install an MEC module:

1. First, disconnect all cables from the device.
2. Dismantle the side panel where the USB input is located by removing the Phillips screws.
3. Pull out the bottom plate.
4. Prepare the module for installing it into the device. Any further mounting information will be found in the instruction manual of the respective MEC module.
5. Insert the MEC module into the specific slot of the device which is marked in the following picture.
6. Make sure that the MEC module is installed properly and that all pins are fully inserted into the socket.
7. Reinsert the bottom plate and fix the new side panel which is delivered with the MEC module with the Phillips screws.
8. Bolt the MEC module to the side panel. Precise mounting information will be found in the instruction manual of the respective MEC module.
9. Reconnect all cables to the device.
10. Turn on the amplifier. The MEC module is automatically detected by the device and the Status LED of the MEC module lights up green.
11. If car-specific setups are used the MEC module will be automatically detected as an auxiliary source, whereas in combination with the DSP PC-Tool, it has to be configured first in the software for proper operation.

Technical Data

Output power RMS / max

• Front / Rear channels 4 Ohms: ………………………..4 x 35 / 70 Watts
• Front / Rear channels 2 Ohms: ………………………..4 x 50 / 100 Watts
• Subwoofer output 2 Ohms: ………………………………1 x 160 / 320 Watts (4 channels each 40/80 Watts)
• Frequency range ……………………………………………………20 Hz – 22,000 Hz
• Number of input channels…………………………………………4 x highlevel, 1 x MEC
• DSP resolution………………………………………………………..56 Bit
• DSP processing power…………………………………………….172 MHz
• Total harmonic distortion (THD)…………………………………< 0.01%
• Signal-to-noise ratio…………………………………………………> 103 dB
• Damping factor……………………………………………………….> 100
• Input impedance……………………………………………………..13 Ohms
• Input sensitivity……………………………………………………….5 – 11 Volts
• Max. remote output current ………………………………………500 mA
• Undervoltage detection…………………………………………….10.5 Volts (max. 5 sec. down to 6 Volts)
• Dimensions (H x W x D) …………………………………………..44 x 185 x 139 mm / 1.73 x 7.28 x 5.47“
• Additional features …………………………………………………..Variable input sensitivity, fully stabilized internal power supply with Start-Stop capability, 56 Bit digital signal processing, internal memory for 2 different sound setups, USB input, ADEP.2 circuit, Auto Remote switch, MEC slot, input for optional remote control, stereo line outputs with balanced output transformers (floating ground).

Warranty Disclaimer

The limited warranty comply with legal regulations. Failures or damages caused by overload or improper use are not covered by the warranty. Please return the defective product only with valid proof of purchase and a detailed malfunction description. Technical specifications are subject to change! Errors are reserved! For damages on the vehicle and the device, caused by handling errors of the module, we can’t assume liability. These devices are certified for the use in vehicles within the European Community (EC).

Note
“The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Audiotec Fischer GmbH is under license. Other trademarks and trade names are those of their respective owners.”

Audiotec Fischer GmbH
Hünegräben 26 · 57392 Schmallenberg · Germany
Tel.: +49 2972 9788 0 · Fax: +49 2972 9788 88
E-mail: match@audiotec-fischer.com · Internet: www.audiotec-fischer.com

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