ART Pro Audio SGX LT - Guitar Preamp with F/X - Manual (Page 13)

CONTROL BUTTONS
CHANNEL SELECT/AUTO STORE
Press this button to manually switch between the clean and dirt channel. When you
change the preset's clean/dirt status with this button, the SGX LT remembers the
last state the preamp was in. So, if the Clean channel was active in the preset
when you first used it, and then you switched to the Dirt channel, the next time
you call up that preset, the Dirt channel will be active. We call this "Auto
Store" because the SGX LT remebers the last state of the preamp section.
PRESET ¿ À
The Preset UP and DOWN buttons (¿, À), shown as purple triangles facing up and
down on the front panel are used to select PRESETs. Holding either button in will
step you through all the Presetss at a moderate rate. You can step at a much
quicker rate by first pressing and holding in the button indicating the direction
you want to go, simultaneously press the other button. As long as both are
pressed the presets will increment by tens rather than one at a time.
BYPASS
Pressing the BYPASS button kills the effects signal in the mix. The display will
show [- -] in the preset window. Pressing BYPASS again returns the preset to
active status.
NOTE: If the mix control is fully right (effect only), there will be no audio
signal at the output.
Another way to bypass the unit is to program the REMOTE jack on the rear panel
for BYPASS mode and use any footswitch and guitar cable.
MIDI
Pressing the MIDI button allows you to change two things. One, the MIDI channel
the SGX LT receives information on and two, access to the MIDI Program Table.
You can set the SGX LT to receive MIDI information on one of 16 or all channels.
The default setting is to receive info on all 16 channels. This is known as Omni
Mode and is displayed as [Al.] in the Program Display window. To change the
channel, refer to the example in Appendix B.
Presets may be accessed at the front panel or remotely via MIDI. When the SGX LT
receives a MIDI PROGRAM number, it recalls a PRESET. If the SGX LT was in BYPASS,
it will become active. The PRESET recalled is determined by a table that equates
MIDI PROGRAM numbers to PRESET numbers. This table is called the MIDI PROGRAM
TABLE (MPT). SGX LT's are shipped from the factory so that the MIDI PROGRAM
numbers equal the PRESET numbers (MIDI program 0 = Preset 00). You can reassign
any Preset number to any MIDI Program number. When you first power up your SGX
LT, the first 128 presets are the default MIDI presets. You cannot access all the
presets in the SGX LT at one time with MIDI. It's not our fault, MIDI only allows
for a maximum number of 128 presets.
So, to access the presets above location 128, some simple programming of your SGX
LT is required. The ability to reassign Preset numbers makes it much more
practical when using MIDI in both simple and complex setups. To change the MPT,
read the next section and refer to the examples in Appendix B. We will refer to
9