@ USB Input
Connect your personal computer to the UP ?BMW
using the provided USB cable. The required
PC 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.
@)
Control pushbutton
The Control pushbutton allows the user to switch
between the two setup memory positions.
To
switch
between the setups the button has to be pressed
and held for one second. Switching is indicated by a
single red flash
of
the Status LED. Pressing the but-
ton for five seconds completely erases the internal
memory. This is indicated by a constant red flashing
of
the Status LED.
Attention: After erasing the setups from memory
the MATCH UP ?BMW will not reproduce any audio
output.
@ Status LED
The LED indicates the operating mode
of
the ampli-
fier and which setup has been chosen.
Green: Setup 1 is loaded.
Orange: Setup 2 is loaded.
Red: Undervoltage protection circuit is
active.
Red flashing: Internal setup storage is empty (A
new setup has to be loaded via
the DSP PC-Tool software).
@ Control Input
This multi-functional connector is designed for
MATCH accessory products like a remote control
which allows to adjust several features
of
the am-
plifier. 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.
@ Optical Input
Optical input
in
SPDIF format for connecting signal
sources with a digital audio output. The sampling
rate
of
this input must be between 12 and 96 kHz.
The input signal is automatically adapted to the in-
ternal sample rate.
In
order to activate and control
the volume
of
this input, we recommend to use an
18
optional remote control.
Note: This amplifier can only handle stereo input
signals and no MP3-
or
Dolby-coded digital audio
stream!
Note: It is possible to use the Optical Input and the
highlevel inputs
of
the System Connector 1 at the
same time.
@)Gain
This control allows to increase the input sensitivity
of
the highlevel inputs up to max. 12 dB. The func-
tion 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 amplifiers gain. Adjustments
with this control do not affect the optical input!
The control range
of
the highlevel input goes from
8.3 Volts (max. CCW position) to 2.0 Volts (max.
CW
position).
Please note: The input sensitivity ex works is set to
8.3 Volts (may. CCW position). This is definitely the
best setting for most applications.
@ Remote Out
We strongly recommend to use this output for turn-
ing on/off additional amplifiers that are connected
to the Line Out
of
the MATCH UP ?BMW. This is
essential to avoid any interfering signals. This out-
put is activated automatically as soon as the boot
process
of
the DSP is completed. Additionally this
output will be turned off during the "Power Save
Mode"
or
a software update process.
@ Line Out
The Line Out is a mono floating-ground lowlevel
output (max. 3 Vrms) for connecting additional pow-
er amplifiers. A specially designed "Balanced Audio
Transformer" avoids any ground-loops that may
cause undesired alternator noise. Please make
sure that you always turn on I off external ampli-
fiers using the remote output (Remote Out)
of
the
UP ?BMW. Additionally this output will be turned off
when the "Power Save Mode"
of
the amplifier is ac-
tive as well as during software updates.
The output can be configured independently
of
the
other amplifier channels with the DSP PC-Tool soft-
ware.
