Allenheath Scepter USER GUIDE Manual de usuario descargar pdf (Pagina 30)

Audio Owner Manual

Section 4

LEFT

RIGHT CHANNEL CONNECTIONS

Pin 1 Lift

This recessed switch is used to disconnect Pin 1 from ground on the LEFT/

RIGHT output XLR connectors. Used to eliminate ground loops when connecting up

different pieces of equipment Use a pencil or other thin probe to activate the switch;

Pin 1 is lifted when the switch is IN.

Left/Right Main Outputs

Main outputs for the Left and Right mix amps. These XLR connector outputs

follow the

L/R

faders. Their outputs can be monitored on the L/R LED meters.

3-Pin

balanced XLR. Pin 2 hot, Pin 3 low, Pin 1 ground. Output impedance

~75

Ohm,

nominal level

+4dBu,

maximum level of

+27dBu

balanced,

+2ldBu

unbalanced.

These outputs are self-compensating electronically balanced. They can be operated

unbalanced with either polarity, by taking the signal from the desired pin

(2=ln-

phase;

3=inverting),

and connecting the unused output pin to ground. The output of

the driving pin will increase by 6dB to compensate for the loss of the grounded pin.

EFXRtn

1,2,3,4

l/4”

stereo jack for returning effects back into the Scepter L/R mix. By using

the appropriate jack connection, high or low level EFX devices can be

accommodated. The Tip of the jack is for low level (-1

OdBV)

EFX devices;

+12dB

gain is provided with this connection to bring the output level of the device up to

+BdBu.

For high level

(+4dBu)

EFX devices, use the unity gain Ring connection

either by inserting the plug half way in or by wiring the plug using the Ring

connection instead of the Tip. Input impedance is 25k Ohm for low level,

>lOOk

Ohm for high level.

Stereo Return

1,2

l/4”

stereo jack for returning stereo EFX, Tape, CD or other low level stereo

sources into the Scepter. The jack is wired for low level

(-1OdBV)

inputs; Tip being

Left input and the Ring as right. Input impedance is

50k

Ohm in stereo mode,

dropping to 20k Ohm when the MONO switch is pressed(Tip

Ring inputs are

mixed thru 1 Ok Ohm resistors with MONO). Aux A

B pre-level sends are available

for wet monitoring.

L/R Insert

l/4”

Stereo Jack used to insert signal processing devices into Left or Right.

The Tip is used for the Send, and the Ring connection is used for the Return. The

insert point is located after the mix amp just before the fader. Nominal signal level is

-2dBu,

output impedance is 50 Ohm with a recommended load of 600 Ohm or

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Allenheath Scepter USER GUIDE Manual de usuario Pagina 30

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