Input Level control - GAIN
The GAIN control, MIN – MAX,
matches the output of your radio
to the input of the amplifier. After
installation is complete, make sure
the input of the amplifier is turned
down all the way to MIN. After tur-
ning the head unit ON, you can
adjust the GAIN level, A normal
setting is from 12 - 14 o’ clock.
The high pass filter
blocks very low frequen-
cies from reaching the
speakers, mostly used
to protect small spea-
kers from deep bass.
High Pass filter (HPF) - S2 / S4
The low pass filter is
mostly used for sub-
woofers. It will allow low
frequencies only and
blocks higher frequen-
cies. A typical setting is
60 – 70 Hz.
The
S2
is a 2-channel amplifier. Can be used for a
pair of stereo speakers or a subwoofer connected
in mono bridge mode.
The amplifier has the following filters / features:
Lowpass filter adjustable from 50 to 500 Hz, the
filter can be switched off.
Highpass filter adjustable from 50 to 500 Hz, the
filter can be switched off.
Bass EQ 0 - + 6 dB adjustable
The
S4
is a 4 channel amplifier which can be used
for front and sub, front and rear or 2 way active
operation.
The amplifier has the following filters / features:
Lowpass filter adjustable from 50 to 500 Hz, the
filter can be switched off.
Highpass filter adjustable from 50 to 500 Hz, the
filter can be switched off.
Set the push button to
ON
and the
HPF / LPF
button
to
HPF (button OUT)
to activate the filter, or
OFF
if you want to run the amplifier in full range mode
without limiting the frequency range.
Set the push button to
ON
and the
HPF / LPF
but-
ton to
LPF (button IN)
to activate the filter, or
OFF
if you want to run the amplifier in full range mode
without limiting the frequency range.
The
S4
model have the same setup of filters on
channels 1 & 2 and 3 & 4 as well.
Low Pass filter (LPF) - S2 / S4
Features on each model
Bass EQ S2 / S1
Bass EQ
or Bass boost is used
to increase the bass volume at a
specific frequency (45 Hz). You can
adjust the amplification from 0 dB
(no amplification) to + 6 dB.
The
S1
is a Mono amplifier for subwoofers.
The amplifier has the following filters / features:
Lowpass filter adjustable from 35 to 250 Hz
Remote level control.
Phase switch 0 - 180 degrees
Subsonic filter
Selectable LPF slopes 12 / 24 dB
Bass EQ 0 - + 6 dB adjustable
The low pass filter is
mostly used for sub-
woofers. It will allow low
frequencies only and
blocks higher frequen-
cies. A typical setting is
60 – 70 Hz.
Low Pass filter (LPF) / Phase shift
This function is used to compensate
for the bass box function and to
adjust for your own taste of bass.
Set level control at 0 dB if you want
it to be inoperative.
Phase switch - S1
To get the best possible front stage from your sub-
woofer installation you can choose the phase shift
between
0
(
button OUT
) or
180
degrees (
button IN
)
Listen to the bass and choose the position that gives
the best front stage in your vehicle.
The
LPF
filter has two selectable
slopes 12 or 24 dB, choose the
slope that sounds best in your
installation.
Subsonic filter on S1
The subsonic filter reduces the
lowest frequencies below 30 Hz.
In ON-position the bass sound
becomes more tight. Choose the
position that best suits your ears
and the installation.
5
Subsonic filters are recommended
with Vented / ported encolsures to
prevent subwoofer damage from
exceeding X-Max at frequencies
below the box tuning frequency.
Содержание Signature S1
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