CXD-Q Amplifier In Component

CXD-Q Amplifier Mic/Line Input Component

This topic covers the Mic/Line Input components for all CXDQ amplifiers, both four-channel and eight-channel models. The CXD8.4Qn and CXD8.8Qn amplifiers do not have analog inputs, or this Mic/Line Input component.

The CXD-Q Inputs, on the rear panel of the amplifier, provide line-level input to Q-SYS for line-level output devices and microphones. The Line Inputs are converted from the analog input signal to a processed digital signal. The Mic/Line Input component provides software controls in Q-SYS before (analog) and after (digital) the convertor.

Connections to the physical Line Inputs are made using four three-terminal Euro style connectors. These physical connectors are represented by the CXD-Q Input Component in Q-SYS Designer.

Once the inputs are sent to Q-SYS, you can route them as needed, they do not have to go to the amplifier output. If you want these inputs sent back to the amplifier, you must connect the outputs of the input component to the inputs of the Amp Output component.

Controls

Analog

Control	Function	Default / Range
Peak Input Level (dBFS)	Meters for each channel indicating the peak analog input level. The measurement is taken after the A/D converter, but before the Digital Gain. Use this meter in conjunction with the Max Input Level to obtain an input signal as close to 0 dBFS as possible without actually clipping.	Default = N / A Range = -100 to 20
Clip	Red LED indicating if the signal is being clipped.	Off / On
Clip Hold	Holds the clip indication until manually cleared.	Off / On
Phantom Power	Toggle turning on and off phantom power to the microphone.	Off / On
Preamp Sensitivity (dBu)	The maximum analog level, coming into the Flex Input component, that can be converted without clipping. This level is typically set slightly higher than the source's output level, so that the Peak Input Level reads about 0 dBFS without actually clipping. Varies inversely with the Preamp Gain.	Default = +21 Range = +27 to -56
Preamp Gain (dB)	The amount of Gain applied to the incoming analog signal level. Varies inversely with the Preamp Sensitivity.	Default = +6 Range = 0 to +83

Control

Function

Default / Range

Peak Input Level

(dBFS)

Meters for each channel indicating the peak analog input level. The measurement is taken after the A/D converter, but before the Digital Gain. Use this meter in conjunction with the Max Input Level to obtain an input signal as close to 0 dBFS as possible without actually clipping.

Default = N / A

Range = -100 to 20

Clip

Red LED indicating if the signal is being clipped.

Off / On

Clip Hold

Holds the clip indication until manually cleared.

Off / On

Phantom Power

Toggle turning on and off phantom power to the microphone.

Off / On

Preamp Sensitivity

(dBu)

The maximum analog level, coming into the Flex Input component, that can be converted without clipping. This level is typically set slightly higher than the source's output level, so that the Peak Input Level reads about 0 dBFS without actually clipping.

Varies inversely with the Preamp Gain.

Default = +21

Range = +27 to -56

Preamp Gain

(dB)

The amount of Gain applied to the incoming analog signal level.

Varies inversely with the Preamp Sensitivity.

Default = +6

Range = 0 to +83

Digital

Control	Function	Default / Range
Invert	Toggle button to invert the digital output of the Input components.	Off / On
Mute	Mutes the output signal.	Off / On
Gain (dB)	Controls the Gain of the digital output signal.	Default = 0 Range = -100 to 20

Control

Function

Default / Range

Invert

Toggle button to invert the digital output of the Input components.

Off / On

Mute

Mutes the output signal.

Off / On

Gain

(dB)

Controls the Gain of the digital output signal.

Default = 0

Range = -100 to 20

Status

Control	Function	Default / Range
Status	Displays the current status both in text and color. The following is a list of possible status colors, and some example conditions. NOTE: These conditions are examples, and may not be applicable to all components with a Status field. OK – Green – (0) – Audio is good, hardware is good. Compromised – Orange – (1) – Audio is good but a redundancy mechanism is active (one LAN down but the other is still up) or a non-fatal hardware problem exists (fans too slow, temperature higher than expected, etc.) Fault – Red – (2) – Audio is not passing, or hardware is malfunctioning or mis-configured (amplifier power off, audio streams broken, wrong type of I/O Card installed, loudspeaker short circuit, etc.) Missing – Red – (3) – A piece of hardware, defined in the design, has not been discovered. Audio is not passing through that piece of hardware. Initializing – Blue – (5) – In the process of firmware, configuration update, and design start. Audio is obviously bad. Not Present – Gray – A virtual component in the design, that is designated as Dynamically Paired, and Not Required ,has no hardware assigned to it.	N / A

Control

Function

Default / Range

Status

Displays the current status both in text and color. The following is a list of possible status colors, and some example conditions.

NOTE: These conditions are examples, and may not be applicable to all components with a Status field.

OK – Green – (0) – Audio is good, hardware is good.

Compromised – Orange – (1) – Audio is good but a redundancy mechanism is active (one LAN down but the other is still up) or a non-fatal hardware problem exists (fans too slow, temperature higher than expected, etc.)

Fault – Red – (2) – Audio is not passing, or hardware is malfunctioning or mis-configured (amplifier power off, audio streams broken, wrong type of I/O Card installed, loudspeaker short circuit, etc.)

Missing – Red – (3) – A piece of hardware, defined in the design, has not been discovered. Audio is not passing through that piece of hardware.

Initializing – Blue – (5) – In the process of firmware, configuration update, and design start. Audio is obviously bad.

Not Present – Gray – A virtual component in the design, that is designated as Dynamically Paired, and Not Required ,has no hardware assigned to it.

N / A

Control Pins

The available Control Pins depend on settings in Properties. Each channel on the Input component has the following Control Pins with the exception of Status, which covers all channels.

Pin Name	Value	String	Position	Pins Available
Clip	0 1	false true	0 1	Input / Output
Clip Hold	0 1	false true	0 1	Input / Output
Gain (Digital)	-100 to 20	-100 dB to 20 dB	0.000 to 1.00	Input / Output
Invert (Digital)	0 1	normal invert	0 1	Input / Output
Mute (Digital)	0 1	unmute mute	0 1	Output
Peak Input Level (meter)	-100 to 20	-100 dB to 20 dB	0.000 to 1.00	Output
Phantom Power	0 1	disable enable	0 1	Input / Output
Preamp Gain	0 to 83	0 dB to 83 dB
Preamp Sensitivity	+27.0 to -56	27.0 to -56	0 to .988	Input / Output
Status	0 1 2 3 4	OK (green) Compromised (orange) Fault (red) Unknown (red) Updating (blue)	0 0.250 0.500 0.750 1.00	Output

Pin Name

Value

String

Position

Pins Available

Clip

false

true

Input / Output

Clip Hold

false

true

Input / Output

Gain (Digital)

-100 to 20

-100 dB to 20 dB

0.000 to 1.00

Input / Output

Invert (Digital)

normal

invert

Input / Output

Mute (Digital)

unmute

mute

Output

Peak Input Level (meter)

-100 to 20

-100 dB to 20 dB

0.000 to 1.00

Output

Phantom Power

disable

enable

Input / Output

Preamp Gain

0 to 83

0 dB to 83 dB

Preamp Sensitivity

+27.0 to -56

27.0 to -56

0 to .988

Input / Output

Status

OK (green)

Compromised (orange)

Fault (red)

Unknown (red)

Updating (blue)

0.250

0.500

0.750

1.00

Output

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