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31
SX .4 Series Amplifiers
Operation
PRESET PRESETS
Ok, we know that sounds like a certain pizza commercial,
but seriously the four memory presets come with settings
already in them.
You can use these as a starting point to do your own
tweaking or for quick push-a-button-and-be-done setup.
Any preset you store will replace the ones that come from
the factory. You can reset all four preset back to factory
defaults anytime simply by doing a reset in the RESET AMP
menu.
Here are the settings in each preset from the factory.
In more general terms, each preset offers you these
options.
Memory-1 sets Amp 1 and Amp 2 into full-range mode with
a infrasonic filter (often called subsonic filter) to protect the
speakers from harmful ultra-low frequencies.
Memory-2 sets Amp 1 and Amp 2 into high-pass operation.
Used for powering up a set of coaxial or component speakers
when another amp is driving a subwoofer.
Memory-3 sets Amp 1 and Amp 2 into low-pass operation
with a infrasonic filter. For use when the amplifier is driving a
subwoofer.
Memory-4 sets the amplifier up for Bi-Amp duty. Amp 1 is
setup for use with coaxials or component speeakers. Amp 2 is
setup for subwoofer duty with an infrasonic filter.
As stated before you can always start with one of these
presets, tweak
it to fit your
installation and
then save your
settings into a
new preset.
MEMORY-1 MEMORY-2 MEMORY-3 MEMORY-4
Amp-1 Amp-2 Amp-1 Amp-2 Amp-1 Amp-2 Amp-1 Amp-2
GAIN LEVEL 6 DB
6 DB
6 DB
6 DB
6 DB
6 DB
6 DB
6 DB
EQ FREQUENCY 40 HZ
40 HZ
40 HZ
40 HZ
40 HZ
40 HZ
40 HZ
40 HZ
EQ BOOST/CUT FLAT
FLAT
FLAT
FLAT
FLAT
FLAT
FLAT
FLAT
EQ BANDWIDTH 3
3
3
3
3
3
3
3
LO-PASS SLOPE OFF
OFF
OFF
OFF
24 dB
24 dB
OFF
24 DB
LO-PASS FREQ 20325 HZ
20325 HZ
20325 HZ
20325 HZ
84 HZ
84 HZ
20325 HZ
84 HZ
HI-PASS SLOPE 12 DB
12 DB
24 DB
24 DB
24 DB
24 DB
24 DB
24 DB
HI-PASS FREQ 25 HZ
25 HZ
84 HZ
84 HZ
25 Hz
25 Hz
84 HZ
25 HZ
PHASE L&R CH. 0 DEGREE
0 DEGREE
0 DEGREE
0 DEGREE
O DEGREE
O DEGREE
O DEGREE
O DEGREE
MUTE L&R CH. OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
KOMPRESSOR OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
KOMP ADJ. 0 DB 0 DB 0 DB 0 DB 0 DB 0 DB 0 DB 0 DB
30
SX .4 Series Amplifiers
Operation
Memory Presets
There are four memory preset keys each with an
indicator above it in the ISIS VFD display. The indicator will
illuminate if that
memory preset is
currently in use.
Each preset stores
all the values for
each of the
following amplifier
controls:
*.)
GAIN
*.) EQ
*.) LO-PASS
*.) HI-PASS
*.) PHASE
*.) MUTE
*.) KOMPRESSOR
This gives you the
ability to dial in four
completely different
amplifier settings and store them in presets for instant recall
later.
It’s like a preset for your favorite radio stations...only better!
M1 M2 M3 M4
ESC ENT
HOME
SYS
MEM-1
GAIN EQ LPF HPF KOMP
AMP1
LOCK
MEM-2 MEM-3 MEM-4
PHASE
MUTE
AMP2
LEFT RIGHT
** kicker
INDICATORS
PRESETS
STORING A PRESET
Make all the adjustments you want to have stored in the
preset and return to the DEFAULT screen.
To store your settings into a preset
simply press and hold the desired
memory key until the VFD display flashes
STORED . Then release the memory key.
The indicator which matches the preset
you used will illuminate.
RECALLING A PRESET
To recall a memory preset simply press
and release the key. The matching
indicator will light up and the amplifier will
change all the corresponding controls to
the values assigned to the memory pre-
set.
M1
M2 M3
M4
SYS
MEM-1
GAIN EQ LPF HPF KOMP
AMP1
LOCK
MEM-2 MEM-3 MEM-4
PHASE
MUTE
AMP2
LEFT RIGHT
stored
SYS
MEM-1
GAIN EQ LPF HPF KOMP
AMP1
LOCK
MEM-2 MEM-3 MEM-4
PHASE
MUTE
AMP2
LEFT RIGHT
** kicker
M1
M2 M3
M4
HOLD
PRESS &
RELEASE