15
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
to connect the PP 52DSP directly to a 12 Volt sour-
ce. Refer to connection instructions in section 3b,
page 19.
2
AUX Input
This input automatically detects input signals of ex-
ternal devices like MP3-players, navigation devices,
etc. and switches to “AUX mode”. If there is no si
-
gnal for more than 2 seconds on the AUX input, the
amplifier automatically switches back to the radio
signal.
If the MODE switch no. 5 is set to “on” position, the
automatic input detection will be deactivated. In this
case it is possible to manually switch to AUX input
using the optionally available remote control URC
2A.
3
System Connector
Please use this terminal only in combination with
the cable harness that is included in the delivery of
the amplifier. Never ever use any other harnesses
to connect the MATCH PP 52DSP 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 and your
loudspeakers. In any case the warranty will be void!
4
Remote Output
We strongly recommend to use this output for tur-
ning on/off additional amplifiers that are connected
to the line outputs of the PP 52DSP. This is essential
to avoid any undesired pop noises during DSP boot
or software update process. Additionally this output
will be turned off when the “Power Save Mode” (see
page 17) of the amplifier is active.
5
USB Input
Connect your personal computer to the PP 52DSP
using the provided USB cable. The required PC
software to configure this amplifier can be downloa
-
ded from the Audiotec Fischer website.
Please note:
It is not possible to connect any USB
storage devices etc.
6
Status LED
The status LED indicates the operation mode of the
amplifier. Green means that setup 1 (af1) is loaded,
orange means that setup 2 (af2) is loaded.
If it lights up red constantly, either the undervoltage
protection is active or an overheating is detected.
A flashing red light indicates that no setup is loaded.
In that case please load a new setup via the PC tool
software or the internal microSD card reader.
7
Control pushbutton
The control pushbutton allows the user to toggle
between two loaded setups „af1“ and „af2“.
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 52DSP will not reproduce any audio output
until a new setup is loaded.
8
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 52DSP, the file will
be automatically copied to the internal memory of
the amplifier. While the copy is in progress, the sta
-
tus 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 52DSP 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 on www.audiotec-fischer.com.
Please be aware that it is not possible to modify the-
se setups with the PC-tool software!
