15
ADJUSTMENT OF THE INPUT GAIN CONTROLS
To reach a maximum in dynamic response from each individual head-unit/amplifier/speaker combi-
nation, it is important to set the respective input sensitivity controls („GAIN“) of all channel pairs cor-
rectly. Before you start, you MUST set all tone controls (Bass, Mid, Treble, Loudness etc.) and the fader
on the head unit to their neutral or center positions.
Now turn all input gain controls of the installed amplifiers anti-clockwise to their minimum positions.
Always start the adjustment with the channel pair, that drives the subwoofer system!. The REMOTE
LOW PASS LEVEL BOOST – if installed in your system configuration - shall be set to a middle posi-
tion, so there is headroom for adjustments using the remote control.
SUBWOOFER CHANNEL
Set the volume control of your head-unit to approximately – of full volume, while playing a dynamic
piece of music. Slowly increase the input gain control of the channel pair, that drives the subwoofer(s),
by turning the GAIN control clockwise until you can just about hear distorted sounds coming out of
your subwoofer system. Reduce the main volume level on your head-unit to a medium listening level.
SATELLITE CHANNELS
Slowly increase the input gain control of the channel pair, that drives the satellite system, by turning
the GAIN control clockwise until you reach a good tonal balance, with a slight emphasis of the bass
range. Aim at a full bodied bass response.
REMAINING CHANNELS
Now slowly turn up the input GAIN control of the remaining channel pair (if any), until you have rea-
ched a good tonal balance. A front door installed kickbass system or a subwoofer will sound best, if
the input gain is set to render slight emphasis in the bass range, as this emphasis will be compensa-
ted by normal driving noises.
PHASE SHIFT CONTROL
The phase shift control provides you with a simple “tool” to match the front door installed satellite
system with the subwoofer playing in the trunk compartment of your car. The phase shift control is used
to improve the match of the phase (time) relation between the front door installed satellite system to the
subwoofer playing in the trunk.
The assistance of somebody adjusting the phase shift control in the back of your car, while you moni-
tor the change of sound in the upper bass range sitting on the on the drivers seat is recommended. A
good match of the phase relation between subwoofer and satellite system will give you a harder hit-
ting upper bass range, and the subwoofer seems to play upfront – and not in the trunk of your car.
EM Digital 4/5-CH Manual 2004 26.03.2004 11:39 Uhr Seite 15
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