The bargraphs may be calibrated by trimmers fitted on the edge of the PCBs and accessed via holes in the panel above each meter. Adjustments may be made using a small screwdriver, taking care not to damage

Frequency Response Curves of the Equaliser

 

 

dB HF Section

 

 

 

 

 

 

 

20.0

 

 

 

 

 

 

 

15.0

 

 

 

 

 

 

 

10.0

 

 

 

 

 

 

 

5.0

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

-5.0

 

 

 

 

 

 

 

-10.0

 

 

 

 

 

 

 

-15.0

 

 

 

 

 

 

 

-20.0

 

 

 

 

 

 

 

20

100

1k

10k

20k

 

 

 

 

Frequency/Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

dB LF Section

 

 

 

 

 

 

 

20.0

 

 

 

 

 

 

 

15.0

 

 

 

 

 

 

 

10.0

 

 

 

 

 

 

 

5.0

 

 

 

 

 

 

 

0.0

 

 

 

 

 

 

 

-5.0

 

 

 

 

 

 

 

-10.0

 

 

 

 

 

 

 

-15.0

 

 

 

 

 

 

 

-20.0

 

 

 

 

 

 

 

20

100

1k

10k

20k

 

 

 

 

Frequency/Hz

 

 

 

 

 

the trimmers.

 

 

 

 

 

 

 

 

 

32.

AUXILIARY MASTER

 

 

 

 

Each of the Auxiliary Send busses is provided with a

 

rotary master level control and an AFL switch with indi-

 

cating LED which monitors the final output after the

 

fader.

 

 

 

 

 

 

 

 

 

 

33.

AUXILIARY OUTPUT

 

 

 

 

The Auxiliary Send output is driven by a ground-com-

 

pensated amplifier to a standard 14" 3 pole ‘A’ gauge

 

jack socket.

 

 

 

 

 

 

34.

STEREO EFFECTS RETURN

 

Four Stereo Effects Returns are provided on pairs of 14"

 

3 pole‘A’ gauge jack sockets, to allow external equip-

 

ment to be returned to the mixer and routed to the

 

stereo Mix or Groups, without using up valuable input

 

channels. A mono signal may be plugged into either

 

socket of each pair to be fed equally to left and right

 

busses. The Effects Returns are electronically bal-

 

anced.

 

 

 

 

 

 

 

 

 

 

 

 

35.

TRIM

 

 

 

 

 

 

Each pair of Effects Returns has a centre-detented TRIM

 

 

 

 

 

 

 

 

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SoundCraft Audio Mixing Console Model Spirit Studio manual Auxiliary Master, Auxiliary Output, Stereo Effects Return, Trim