Manual

20
and held for one second. Switching is indicated by a
single red ash of the Status LED. Pressing the but-
ton for ve seconds completely erases the internal
memory. This is indicated by a constant red ashing
of the Status LED.
Attention: After erasing the setups from memory
the MATCH UP 7DSP will not reproduce any audio
output.
11
Status LED
The LED indicates the operating mode of the ampli-
er and which setup has been chosen.
Green: Setup 1 is loaded.
Orange: Setup 2 is loaded.
Red: Undervoltage protection circuit is
active.
Red ashing: Internal setup storage is empty (A
new setup has to be loaded via
the DSP PC-Tool software).
12
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-
plier. Depending on the type of remote control, the
functionality at rst has to be dened in the “Device
Conguration Menu” of the DSP PC-Tool software
or on the remote control itself.
13
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
optional remote control.
Note: This amplier 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.
14
Gain
This control allows to increase the input sensitivity
of the highlevel inputs up to max. 6 dB. The 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 ampliers gain. Adjustments with
this control do not affect the optical input! The con-
trol range of the highlevel input goes from 11 Volts
(max. CCW position) to 5 Volts (max. CW position).
Please note: The input sensitivity ex works is set to
11 Volts (may. CCW position). This is denitely the
best setting for most applications.
15
Remote Out
We strongly recommend to use this output for turn-
ing on / off additional ampliers that are connected
to the Line Out of the MATCH UP 7DSP. This is es-
sential to avoid any interfering signals. This output
is activated automatically as soon as the boot pro-
cess of the DSP is completed. Additionally this out-
put will be turned off during the “Power Save Mode”
or a software update process.
16
Line Out
The Line Out is a mono oating-ground low level
output (max. 3 Vrms) for connecting additional pow-
er ampliers. A specially designed “Balanced Audio
Transformer” avoids any ground-loops that may
cause undesired alternator noise. Please make
sure that you always turn on / off external ampli-
ers using the remote output (Remote Out) of the
UP 7DSP. Additionally this output will be turned off
when the “Power Save Mode” of the amplier is ac-
tive as well as during software updates.
The output can be congured independently of the
other amplier channels with the DSP PC-Tool soft-
ware.
Initial start-up and functions