Expander; Distortion - Art SGX-2000 User Manual

1) If you add the compressor and set its' slope to 1:1 you get a programmable
level control on the input of the analog signal chain. This works great as a
variable distortion drive, or volume pedal effect.
2) The Compressor can be re-patched and replace the input signal on the "DRY"
portion of the mix. This is great for getting a compressed guitar mixed with
distorted guitar. Just add the PATCH BAY to the preset and set DRY= POST CMP to
use the compressor as the DRY signal.

EXPANDER

[EXPANDER], [EXP]
Parameters:
RANGE: OFF, 0 to 100% in 2% increments [75%]
RATIO: OFF, 1:1.5, 1:1.8, 1:2, 1:2.5, 1:3, 1:4, 1:5 [1:3]
The expander is an extention of the compressor. (You don't need the Compressor in
the effects chain for the Expander to work) Use the expander to reduce the noise
the compressor may bring up. Adjust the Range control for the audio threshold
level. This level is where the expander will affect the signal. Setting the slope
below 3:1 allows notes to tail off smoothly and still remove noise. Greater
slopes act more like a noise gate, chopping off the noise below the threshold
setting. Since the detector is shared with the compressor, attack and release
time parameters affect the expander performance. Longer attacks mute the initial
attack of a note. Extremly long attacks can sound like a reverse envelope effect
if only the expander is applied.

DISTORTION

[DISTORTION], [DST]
Parameters:
DST: OFF, TURBO TUBES, PSYCHO TUBES, OVERDRV TUBE, JAZZ TUBES,
SOLID SUPER, SOLID WARM, TUBE CLEAN, TUBE STACK [TURBO TUBES]
DRIVE: 0 to 100% in 2% increments [50%]
BITE: 0, 1, 2, 3, 4, 5, 6 [3]
OUTPUT: 0 to 100% in 2% increments [100%]
The 12AX7 tube used in the SGX 2000 is a twin pentode tube. What this means is
there are essentially two tubes enclosed in one case. We use these two tubes
together to produce different types of overdrive and distortion. There are four
separate solid state circuits used to create an overdrive or distortion
algorithm. In all, there are eight different distortion algorithms to choose
from. Two are tube only, these two algorithms are "Overdrive Tube" (overdrv tube)
and "Tube Clean". Two are solid state only and are called "Jazz Tubes" and "Solid
Warm". The four stacked versions of tube and solid state together are: "Turbo
Tubes", Psyco Tubes", "Solid Super", and "Tube Stack". Use the Drive parameter to
adjust the amount of gain used to drive either the tube or solid state circuitry.
As you increase the drive, you increase the amount of distortion. The Bite
parameter allows you to add presence and high end to the distortion. Output sets
the final output level of the distortion circuit.
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