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FADER

Point Before:

MUTE

Point After:

PAN

CENTER

(

ASSIGN

)

DIRECT OUT

AUX

(with

PRE

switch

up),

AFL CHANNEL METER

The Fader is almost the last control in a

Channel’s signal path. It’s placed after the

and the

MUTE

controls but before the

PAN

control. The “

” mark, about three-quarters of

the way up, indicates unity gain, meaning no
increase or decrease of signal level. All the way
up provides an additional 10dB, should you
need to boost a section of a song. If you find
that the overall level is too quiet or too loud
with a Fader near unity, you’ll want to confirm
the trim setting by keeping an eye on the
Channel Meter

(with the

METERING:

INPUT SECTION PFL/AFL

switch

in the

“up” position), or performing the

Level-Setting

Procedure

A CLEAN FADE

Fader mechanics are not
rocket science — a Fader
operates by dragging a metal
pin (the wiper) across a
carbon-based strip (the

track). Despite the elaborate dust barriers
built into the SR40•8’s Faders, it is still remotely
possible for airborne crud to land on the track.
Should that happen, you may hear scratchy
noises or signal dropouts as the wiper stumbles
over the crud. Do all you can to keep airborne
crud out of your profession. Avoid smoking
near the mixer, keep food and drink away from
the mixer, and for pity’s sake, never put the
mixer in the kitchen! We also recommend
“exercising” the Faders — give them a few
full-travel excursions once a week or so, and
that will help scare the crud away. We do not
recommend spray cleaners.

PAN

Point Before: Channel Fader

Point After:

1-2

3-4

5-6

7-8

(assignment

switches)

SOLO

(in

AFL

mode)

PAN

adjusts the amount of Channel signal

sent to the left versus the right outputs.

PAN

determines the fate of the

LEFT/RIGHT

mix,

Subgroups, and

SOLO

(in

AFL

mode). With the

PAN

knob hard left, the signal feeds the

LEFT

mix,

SUB

and

, and the left

AFL SOLO

(assuming their assignment switches are en-
gaged). With the

PAN

knob hard right, the signal

feeds the

RIGHT

mix,

SUB

and

and the

right

AFL SOLO

. With the

PAN

knob set some-

where in between left and right, the signal is
divided between the left and right buses.

Be aware:

Since

CENTER

assignment

occurs before the

PAN

control, it will receive

the same level as the Fader output, regardless
of the

PAN

position.

With stereo sources your life will be easier if

you follow this standard convention: When
patching stereo sound sources into Channels,
always plug the left signal into an “odd” Chan-
nel (

, etc.) and the right signal into the

adjacent “even” Channel (

, etc.). Then

PAN

the odd Channel hard left and the even

Channel hard right.

CONSTANT LOUDNESS

The SR40•8’s

PAN

controls

employ a design called
“constant loudness”. It has
nothing to do with living
next to a freeway. As you

turn the

PAN

knob from left to right (thereby

causing the sound to move from left to center
to right), you want the sound to move, but the
volume (loudness) must stay the same. To ac-
complish this trick, the SR40•8 has a constant
loudness pan circuit, meaning the signal level
dips down about 4dB on each side when
panned center. Without this trick, the sound
would appear louder when panned center.

1-2, 3-4, 5-6, 7-8, L-R (assignment switches)

Point Before:

PAN

Point After:

LEFT/RIGHT

mixes

and

SUB

1–8

mixes

Alongside each Channel Fader are five but-

tons labeled