20
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 7DSP will not reproduce any audio
output.
11
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).
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-
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.
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 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.
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 amplifiers 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 definitely the
best setting for most applications.
15
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 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 floating-ground low level
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 / off external ampli-
fiers using the remote output (
Remote Out
) of the
UP 7DSP. 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.
Initial start-up and functions
