Preamp - Boss Audio Systems GT-100 Parameter Manual

Cosm amp effects processor
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EFFECT
CUSTOM OD/DS SETTING
Parameter
Value
Explanation
OD-1
This models the sound of the BOSS OD-1 .
OD-2
This is a overdrive sound with high gain .
CRUNCH
This is a crunch sound .
DS-1
This gives a basic, traditional distortion sound .
CUSTOM TYPE
DS-2
This creates a heavier distortion sound .
This is a metal sound with a characteristic
METAL1
midrange .
METAL2
This gives a heavy metal sound .
FUZZ
This gives a basic, traditional fuzz sound .
+: For soloing
CUSTOM CHAR -50–+50
-: For backing
This controls the input sound's low-frequency
CUSTOM
-50–+50
range and adjusts the amount of distortion in the
BOTTOM
low-frequency range
This controls the input sound's high-frequency
CUSTOM TOP
-50–+50
range and adjusts the amount of distortion in the
high-frequency range .
Adjusts the low-range tones after distortion is
CUSTOM LOW
-50–+50
applied .
Adjusts the high-range tones after distortion is
CUSTOM HIGH -50–+50
applied .

PREAMP

COSM technology simulates different preamp characteristics, speaker
sizes, and cabinet shapes .
Parameter
Value
Explanation
ON/OFF
OFF, ON
Turns the COSM AMP effect on/off .
TYPE
Refer to PREAMP TYPE
GAIN
0–120
Adjusts the distortion of the amp .
T-COMP
-10–0–+10
Adjusts the sense of compression of the amp .
Adjusts the volume of the entire preamp .
LEVEL
0–100
* Be careful not to raise the Level setting too
BASS
0–100
Adjusts the tone for the low frequency range .
MIDDLE
0–100
Adjusts the tone for the middle frequency range .
TREBLE
0–100
Adjusts the tone for the high frequency range .
Adjusts the tone for the ultra high frequency
range .
PRESENCE
0–100
* The PRESENCE parameter functions as a
Turns the bright setting on/off .
BRIGHT
OFF, ON
* The BRIGHT parameter setting is available only
Provides for selection from three levels of
distortion: LOW, MIDDLE, and HIGH . Distortion
will successively increase for settings of LOW,
LOW, MIDDLE,
MIDDLE and HIGH .
GAIN SW
HIGH
* The sound of each Type is created on the basis
SOLO SW is switched on to create the tone to one
SOLO SW
OFF, ON
suitable for solos .
Adjusts the volume level when the SOLO SW is
SOLO LEVEL
0–100
ON .
6
high .
high-cut filter with some PREAMP TYPEs .
with certain PREAMP TYPEs .
that the Gain is set to MIDDLE . So, normally set
it to MIDDLE .
Parameter
Value
Explanation
Select the speaker type .
OFF
This turns off the speaker simulator .
ORIGIN
This is the built-in speaker of the amp you
(ORIGINAL)
selected with PREAMP TYPE .
This is a compact open-back speaker cabinet
1x8"
with one 8-inch speaker .
This is a compact open-back speaker cabinet
1x10"
with one 10-inch speaker .
This is a compact open-back speaker cabinet
1x12"
with one 12-inch speaker .
SP TYPE *1
This is a general open-back speaker cabinet with
2x12"
two 12-inch speakers .
This is an optimal speaker cabinet for a large
4x10"
enclosed amp with four 10-inch speakers .
This is an optimal speaker cabinet for a large
4x12"
enclosed amp with four 12-inch speakers .
This is a double stack of two cabinets, each with
8x12"
four 12-inch speakers .
Custom speaker
CUSTOM
You can customize it however you like to match
the sound you want .
This setting selects the simulated mic type .
This is the sound of the SHURE SM-57 . General
DYN57
dynamic mic used for instruments and vocals .
Optimal for use in miking guitar amps .
This is the sound of the SENNHEISER MD-421 .
DYN421
Dynamic mic with extended low end .
MIC TYPE *1
This is the sound of the AKG C451B . Small
CND451
condenser mic for use with instruments .
This is the sound of the NEUMANN U87 .
CND87
Condenser mic with flat response .
Simulates a mic with perfectly flat response .
FLAT
Produces a sonic image close to that of listening
to the sound directly from the speakers (on site) .
Simulates the distance between the mic and speaker .
This setting points the mic away from the
OFF MIC
MIC DIS *1
speaker .
Provides conditions whereby the mic is directed
ON MIC
more towards the speaker .
This simulates the mic position .
Simulates the condition that the mic is set in the
CENTER
MIC POS *1
middle of the speaker cone .
Simulates the condition that the mic is moved
1–10 cm
away from the center of the speaker cone .
MIC LEVEL *1
0–100
Adjusts the volume of the mic .
DIRECT MIX
0–100
Adjusts the volume of the direct sound .
*1
*1 This is enabled when the OUTPUT SELECT parameter is set to LINE/PHONE .

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