Description of Controls - Chapter 5

CHAPTER 5

DESCRIPTION OF

CONTROLS

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 Ògain-stagingÓ allows us to maintain a superior signal-to-noise ratio and eliminate any overloading of the Q20Õs 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 itÕs 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 Q20Õs program should be lowered.

Display

The Q20 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

 

 

 

 

 

 

 

 

Alphanumeric Display

DIG.IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MIDI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAGE

PROGRAM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT

1

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EQ

 

EQ

 

EQ

 

EQ

 

EQ

 

EQ

 

EQ

 

EQ

 

 

2

7

L

L

L

L

L

L

L

L

L

L

3

8

PCH

 

PCH

 

PCH

 

PCH

 

PCH

 

PCH

 

PCH

 

PCH

 

R

DLY M

DLY M

DLY M

DLY M

DLY M

DLY M

DLY M

DLY M

R

4

9

 

RVB

R

RVB

R

RVB

R

RVB

R

RVB

R

RVB

R

RVB

R

RVB

R

 

5

 

PRESET EDITED

1

 

2

 

3

 

4

 

5

 

6

 

7

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Program Number/Status

 

 

 

 

 

 

 

Program Blocks/Routing

Page Indicators

 

 

 

 

 

 

 

 

 

 

 

 

 

Block Pointer

Q20 Reference Manual

67