QSC Audio CM16a manual Specifications, Input Signal Processing, Power amplifier output processing

Frequency response

20 Hz–20 kHz ±0.5 dB

10 Hz–80 kHz ±3 dB

Distortion

<0.01% THD+N @ +4 dBu out

(page input <0.03%)

Dynamic range

>110 dB unweighted

20 Hz–20 kHz

(page input >100 dB)

Polarity

In-phase or inverted

Level control range

-95.5 to 0 dB in 0.5 dB steps

Precision attenuator

better than 112 dB below

transients (“zipper”

maximum output

noise)

Mute

>90 dB attenuation

Inputs

Program inputs

16

Paging inputs

1

Monitor bus input

1

Connector type

Terminal block connectors (also

called “Euro” or “Phoenix”-

style”), detachable

Type

Electronically balanced

Grounding

All shield terminals connected to

chassis

Nominal level

1V/3V rms selectable

Maximum level

+21 dBu

Impedance

10 kOhm balanced

Common-mode rejection

Typical, >50 dB, 20 Hz–20 kHz

Worst Case, >40 dB at 20 kHz

Crosstalk (inter-

>75 dB separation, 20 Hz–20 kHz

channel within

Data Port pair)

Crosstalk (intra-

>85 dB separation,

channel, between

20 Hz–20 kHz

Data Port pairs)

measured with all inputs and

outputs terminated

Outputs

Program outputs

16 (via HD-15)

Connector type

8 HD-15 data port connections

Pinout

Special, see appendix

Cable type

VGA monitor cable

Qualified length

2 meters

Monitor output

1

Connector

“Phoenix-style” (a.k.a.

“Euro-style”) detachable

terminal blocks

Type

Electronically balanced

Grounding

Shield terminal connected to

chassis

Nominal level

+4 dBu

Maximum level

+21 dBu

Output impedance

75 Ohms balanced

Output load

600 Ohms minimum