Allenheath 21 Series Manuel d'utilisateur télécharger pdf (Page 6)

Channel Inputs:

XLR sockets.

Electronically balanced suitable for safe connection

of external phantom power supply of up to

48VDC.

XLR pin 3 = hot

pin 2 = cold

= screen

Input Impedance

mic = 1000 to 1500 ohms

line =

10kohms

Gain

mic

= continuously variable from

+20dB

+60dB

line

= continuously variable from

-5dB

+35dB

Pad

mic =

-20dB

line = -12dB

Insertion Points

unbalanced

1/4"

stereo jack sockets

tip = return

ring = send

outer = earth

normal operating level =

+4dBv

Peak Overload Indicator

turns on at 3dB before clipping.

Echo Return Inputs:

mono

1/4"

jack sockets

Maximum Gain to Stereo Outputs =

+16dB

Input Impedance =

greater than 4kohms

Stereo Tape Input:

stereo

1/4"

jack socket

tip = left

ring = right

outer = earth

Input Impedance = 40kohms

Gain to Monitors

0dB

+12dB

selectable by an internal connector

for either +4dBv or -8dBv normal operating level.

Stereo and Mono Outputs:

unbalanced XLR sockets

pin 3 = signal

pin 2 = pin

= earth

Normal Operating Level = +4dBv or

-8dBv selectable by an internal

connector.

Cue and Echo Outputs:

unbalanced

1/4"

jack sockets mono

Normal Operating Level =

+4dBv

Maximum Gain from Input =

+10dB

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

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Allenheath 21 Series Manuel d'utilisateur Page 6

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