GND: Connector for the ground cable. The
ground wire should be connected to a com-
mon 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 cleaned of all paint resi-
dues. The cable should have the same gauge
as the +12 V wire. Inadequate grounding
causes audible interference and malfunctions.
REM: The remote input is used to power on
the V TWO when the line inputs are used,
or when the amplifier should be deliberately
switched on and off via a remote signal. In
these cases, this input must be connected.
The remote wire should be connected to the
remote output of the preconnected device
(DSP or DSP amplifier) that supplies the input
signal to the V TWO.
We do not recommend controlling the remote
input via the ignition switch to avoid pop noise
during turn on / off.
Note: This input does not need to be connect-
ed if the V-AMP Link input is used. To deacti-
vate the "automatic turn-on" function read the
description on page 18, point 1 "Configuration
of the automatic turn-on (Auto Remote)".
5. Powering on the amplifier
After completing steps 1 to 5, switch on the
amplifier by powering on your audio system.
6. Adjusting the input mode (Mono / Stereo)
The amplifier can be operated either as a
1-channel (mono) or 2-channel (stereo) am-
plifier.
The currently active mode is indicated by the
input mode LED (page 17, point d).
The default factory setting is "Stereo" mode.
Stereo (blue): In stereo mode, each speaker
output is supplied with its corresponding input
signal.
Mono A (orange): In mono mode the input sig-
nal from channel A is routed to both speaker
outputs
To switch between the two modes, proceed as
follows:
1. Press the "Menu" button (page 17, point g)
to activate the Amplifier Control Panel.
2. Press the "Menu" button repeatedly un-
til the input mode LED (page 17, item d)
flashes slowly (the LED flashes in the color
of the last selected mode: blue or orange).
3. Use the arrow buttons (page 17, point b) to
toggle between the two modes:
Blue:
Stereo
Orange:
Mono A
4. Press the "Menu" button again to complete
the process.
Note: If no input is made within 30 seconds,
the amplifier automatically exits the menu and
saves the currently active mode.
7. Adjustment of the input sensitivity
ATTENTION:
It is mandatory to properly
adapt the input sensitivity of the V TWO to the
signal source to achieve the best possible sig-
nal quality and avoid damage to the amplifier.
The V TWO offers two options for gain ad-
justment via the innovative Amplifier Control
Panel (ACP):
I: Auto Gain Ranging (AGR) – automatic ad-
justment (recommended)
II: Manual gain adjustment
Important: Use manual gain adjustment only
if you know the maximum output voltage of the
connected signal source.
In all other cases, we recommend using the
Auto Gain Ranging function, which ensures
quick, precise, and reliable setup.
The gain control ranges are:
RCA / Cinch: 0.5 - 8 Volts
V-AMP Link: 1.5 - 21 Volts
The Gain & Clipping indicator (page 17,
point a) provides visual feedback throughout
the process.
I: Automatic gain adjustment using Auto
Gain Ranging (AGR)
ATTENTION:
We do not recommend con-
necting any speakers to the outputs during
this procedure. If speakers are connected,
the outputs will be automatically deactivat-
ed to protect the speakers.
en
19