5: Description Of Controls; Front Panel; Quadraverb 2 Reference Manual; Input Level - Alesis 2 Reference Manual

D
ESCRIPTION OF

Front Panel

Input Level

Left and Right: These concentric knobs (one within the other) control the
incoming level of our analog signal, and the relative balance between the two input
channels. This "gain-staging" allows us to maintain a superior signal-to-noise ratio and
eliminate any overloading of the QuadraVerb 2's inputs. This feeds directly to the
LED ladder.

Output Level

This controls how much signal we are returning to our mixing console, or whatever
else it's connected to. Matching levels throughout the recording/mixing chain will
allow us to get the cleanest possible recordings .

LED Meter

This is a visual indicator of level. It is a four step LED (light emitting diode) ladder with
steps at -32dB, -12dB, -3dB (green LEDs), and the red LED indicating CLIP. The dB
markings refer to how much headroom is remaining before overload. As with all
meters, a certain amount of experimentation is necessary before you feel
comfortable, as different types of signals with sharper attack times will affect the LEDs
differently. The meters have several sources, so they can detect overloads caused by
internal gain or feedback, as well as by the [INPUT LEVEL] controls. Internal clipping
is shown when the red LEDs flash; if the red LEDs flash while the -3 LEDs do not
light, the levels within the QuadraVerb 2's program should be lowered.

Display

The QuadraVerb 2 is equipped with a custom LCD display, which provides (among
other things) a complete view of the signal routing used by the current Program.
MIDI Input Indicator
Digital Input Indicator
DIG.IN
MIDI
PROGRAM
PAGE
1 6
2 7
3 8
4 9
5
PRESET
EDITED
Program Number/Status
Page Indicators
Note: This illustration shows all display flags and routes ("patch cords") turned on at
once. Actual displays show only some of these at any time.
DIG. IN. Illuminates if the INPUT AUDIO SOURCE is switched to OPTICAL DATA in
the Global functions.
MIDI. Illuminates if MIDI signals are present at the MIDI IN.

QuadraVerb 2 Reference Manual

C
HAPTER
IN
EQ EQ EQ
L L L
PCH PCH PCH
L
M
M M
DLY DLY DLY
R
R
R R
RVB RVB RVB
3
1 2
Description of Controls - Chapter 5
5
C
ONTROLS
Alphanumeric Display
EQ EQ EQ
EQ
L L L L
PCH PCH PCH PCH
M M M
M
DLY DLY DLY DLY
R R
R R
RVB RVB RVB RVB
4 5 6 7
Program Blocks/Routing
Block Pointer
OUT
EQ
L
PCH L
M
DLY
R
R
RVB
8
57