Introduction
Safety Precautions
Connections to Folio 4
The Controls at a glance -
Mono Input Channel
Stereo Input Channel
Groups, Returns & Aux Masters
Master Section
Initial Setting Up
Setting Up for Multitrack Recording
The Controls in More Detail
Applications -
Stereo P A
Stereo P A with Centre Feed
Stereo Recording
4-T rack Recording
Glossar y
T echnical Specifications
System Block Diagram
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Int roduct ion
Thank you for buying a SPIRIT FOLIO 4 mixer, brought to you with pride by the SPIRIT team of Peter, Graham,
Malcolm, Martin, P eter, B rian, George, Colin, T ony, Jam es, M ukesh, Andy , Candy and Simon. W e hope you have
as much fun as we did!
Owning a SPIRIT console brings you t he expertise and support of one of the industry’s leading manuf acturers and
the results of over 20 years experience supporting some of the biggest names in the business.
Built to the highest standards using quality components, FOLIO 4 has evolved from the acclaimed FOLIO mixer
with the addition of 4 Audio Subgroups, 8 Auxiliary Sends, Stereo Effects Returns, Dual VU/PPM Metering and
comprehensive monitoring.
We have designed FOLIO 4 to be an instinctive and simple console to operate, but a few minutes spent reading
this manual will help you to become familiar with the product away from the pressure of a live session, and allow
you to gain full benefit from the superb performance which it offers.
Above all, remember that your S PIRI T mixer is designed to ext end your creativity. The m ore that y ou explore the
controls and the effect they have on the sound output, the more you will appreciate how you can influence and
enhance the final sound.
SAFETY P RECAU TION S
For your own safety and to avoid invalidation of the warranty please read this
section carefully.
The FOLIO 4 desk must only be connected through the Power Supply Uni t
supplied.
The wires in the mains lead are coloured in accordance with the following code:
Green and Yellow: Earth
Blue: Neutral
Brown: Live
As the colours of the wires in the mains lead may not correspond with the coloured markings identifying the terminals
in your plug, proceed as follows:
•• The wire which is coloured Green and Yellow must be connected to the terminal in the
plug which is marked with the letter E or by the earth symbol.
•• The wire which is coloured Blue must be connected to the terminal in the plug which
is marked with the letter N or coloured Black.
•• The wire which is coloured Brown must be connected to the terminal in the plug which
is marked with the letter L or coloured Red.
Ensure that these colour codings are followed carefully in the event of the plug being changed.
To avoid the risk of fir e replace the mains fuse only with the correct value
fuse, as indicated on the label on the power tra nsformer unit.
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SPI RI T FOL IO 4
These sockets accept 3-pole `A '
gauge (TRS) jacks. Use these inputs
for sources such as keyboards,
drum machines, synths, tape
machines or as returns from
processing units. The inputs are
BALANCED for low noise and
immunity from inter ference, but you
can use UNBALANCED sources by
wiring up the jacks as shown,
although you should then keep
cable lengths as shor t a s possible to
minimise inter ference pick-up.
These jacks are an ideal
place to connect the playback
of a tape machine or the output of
an ef fects unit, without using up any
of the LINE inputs. The input is
unbalanced.
The mic input socket at the rear of the
mixer accepts XLR-type connectors and
is designed to suit a wide range of
BALANCED or UNBALANCED low-level
signals. Professional dynamic,
condenser or ribbon mics are best
because these will be LOW
IMPEDANCE and therefore of fer best
noise immunity . Each mic input has a
switch to turn on +48V PHANTOM
POWER providing a suitable powering
voltage for professional condenser
mics. DO NOT use unbalanced sources
with the phantom power switched on.
The voltage on pin s2&3o ft h e X L R
connector may cause serious damage.
Unplug any mics if you want to use the
corresponding LINE Input to avoid the
load presented by the mic from
af fecting the Line Input gain.
LINE INPUT Accepts 3-pole
`A ' gauge (TRS) jacks. Use
this input for sources other
than mics, such as
keyboards, drum machines,
synths, tape machines or
guitars. The input is
BALANCED for low noise
and immunity from
inter ference, but you can
use UNBALANCED sources
by wiring up the jacks as
shown below , although you
should then keep cable
lengths as shor t a s possible
to minimise inter ference
pick-up on the cable.
Unplug anything in the MIC
input if you want to use this
socket.
Connects to the Folio 4
Power Supply .
These independent unbalanced
outputs are post Mix Inser t, pre-fader ,
and are ideal for recording concer ts
to -10dBV tape inputs.
SPIRIT FOLIO 4
These are pairs of unbalanced
inputs suitable for tape playback or
outputs from reverb units or other
ef fects. The inputs are suitable for
signals at -10dBV level (gain
clockwise) to +4dBu.
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This knob sets how much of the source signal is sent to the rest of the mixer . T oo high, and
the signal will distor t a s i t overloads the channel (shown by illumination of the PEAK LED),
and causes clipping. T o o low , and the level of any background hiss will be more
noticeable and you may not be able to get enough signal level to the output of the mixer .
Setting the knob to the `U' mark gives unity gain for the LINE input.
Pressing this switch reduces the level of
bass frequencies only , and is a real bonus
on a compact mixer .
Use this in live P A situations to reduce stage
rumble or `popping' from microphones.
T urn to the right to boost high
(treble) frequencies by up to
15dB, adding crispness to
cymbals, vocals and electronic
instruments. T urn to the left to
cut these frequencies by up to
15dB, reducing hiss or
over-emphasis of
high-frequency consonants,
which can occur with cer tain
types of microphone. Set the
knob in the centre-detented
position when a flat response
is required.
There are two knobs which work together to form a SWEPT
MID EQ. The lower knob provides 15dB of boost and cut,
just like the HF EQ knob, but the frequency at which this
occurs can be set by the upper knob over a range of 250Hz
to 6kHz. This allows some truly creative improvement of the
signal in live situations, because this mid band covers the
range of most vocals. Set the lower knob to the
centre-detented position when not required.
T urn to the right to boost low
(bass) frequencies by up to
15dB, adding warmth to vocals
or extra punch to synths,
guitars and drums. T urn to the
left to cut low frequencies by
up to 15dB for reducing hum,
stage rumble or to improve a
mushy sound. Set the knob to
the centre-detented position
when not required.
These sends are always PRE-F ADE,
PRE EQ and are unaf fected by the ON
switch. They would typically be used
for Foldback or Monitor feeds, for
which it is impor tant that the send
should be independent of the fader so
that, for instance, the mix to ar tists
headphones or monitor wedge is not
af fected by changes in fader level.
This control sets the
amount of the channel
signal feeding the Right
and Left MIX or GROUP
outputs, allowing you to
move the source
smoothly across the
stereo image. Rotation
fully anticlockwise feeds
the signal solely to the
Left mix bus, Group 1 o r
Group 3, while rotation
clockwise sweeps the
image to the right bus,
Group 2 o r Group 4.
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e
For fur ther detail
see page 13
The Equaliser (EQ) allows precise manipulation of the sound,
par ticularly to improve the sound in live P A applications where the
original signal is often far from ideal. There are three sections, HF ,
MID and LF giving the sor t o f control usually only found on much
larger mixers. The EQ knobs can have a dramatic ef fect, so use
them sparingly and listen carefully as you change any settings so
that you get to know how they af fect the sound.
The EQ switch bypasses the Equalisation section when released and
places it into the channel path when pressed. It would typically be
used for simple comparison of the equalised and unequalised signal.
This send can be set pre-fade, pre-EQ or
post-fade as required by the AUX 3 PRE
switch on the Master Section.
These are always POST -F ADE and would normally be used to
drive ef fects processing units which are fed back into the mixer
and which must fade out with the input channel. Aux 4 i s a n
individual mono send, while the 5/6 STE knob feeds the
channel signal via the P A N control (see below) as a stereo pair
to either Aux output s5&6o r , with the 7-8 switch pressed, to
Aux output s7&8 .
These controls route the input channel signal
to any one or more of eight Auxiliar y busses,
which combine the sends from each channel,
mixing them to separate outputs on the rear of
the mixer . Since they are independent of the
main outputs they can provide additional
sources for foldback, ef fects processors or
extra loudspeaker `fills'. Leave the knobs
turned fully anticlockwise when not in use.
The ON switch turns on all post-fade
outputs from the channel when pressed.
Note that the Inser t point is unaf fected
by the ON switch.
The linear F ADER gives you smooth control
of the overall signal level in the channel
strip, allowing precise balancing of the
various source signals being mixed to the
Master Section.
The input channel signal is always routed to MIX or GROUPS
as selected by the two ROUTING switches. The upper switch
selects MIX when released or GROUPS when pressed, while
the lower switch chooses between Groups 1-2 when released
or Groups 3-4 when pressed.
This LED indicator warns when an
excessively high signal level is
present in the channel and will
illuminate approximately 4dB before
clipping
When the latching PFL switch is pressed, the pre-fade signal is fed
to the headphones or monitor outputs, replacing the selected
source (either Mix or T ape Return). The signal is also displayed on
the right PPM meter . This is a useful way of listening to any one or
more signals without interrupting the main mix, for adjusting signal
quality or to set the input GAIN.
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Most professional equipment uses input and output levels of +4dBu, but
semi-professional tape machines or hi-fi systems use a lower level of -10dBV .
This switch allows you to match the sources connected to the Stereo input jacks to
either standard, which is impor tant to ensure the best possible sound quality . I f
you are not sure what input level is appropriate, star t with the switch UP to select
+4dBu. If you are unable to achieve an adequate signal level, press the switch
in for -10dBV .
HF EQ T urn to the right to boost high (treble)
frequencies, adding crispness to percussion from
drum machines, synths and electronic
instruments. T urn to the left to cut these
frequencies, reducing hiss or excessive
brilliance. Set the knob in the centre-detented
position when not required. The control has a
shelving response giving 15dB of boost or cut at
a fixed frequency .
The EQ switch disables the
equaliser when released and
activates it when pressed. It
would typically be used for
simple comparison of the
equalised and unequalised
signals.
LF EQ T urn to the right to boost low (bass)
frequencies, adding extra punch to synths,
guitars and drums. T urn to the left to reduce
hum, boominess or improve a mushy sound.
Set the knob to the centre-detented position
when not required. The control has a shelving
response giving 15dB of boost or cut at a fixed
frequency .
These sends are always PRE-F ADE, POST EQ
and are not af fected by the position of the ON
switch. They would typically be used for
Foldback or Monitor feeds, for which it is
impor tant that the send should be independent
of the fader so that, for instance, the mix to
ar tists headphones is not af fected by changes in
fader level.
5
e
For fur ther detail
see page 16
These controls route the input channel signal to
any one or more of eight Auxiliar y busses,
which combine the sends from each channel,
mixing them to separate outputs on the rear of
the mixer . Since they are independent of the
main outputs they can provide additional
sources for foldback, ef fects processors or extra
loudspeaker `fills'. Leave the knobs turned down
when not in use.
This send can be set pre or post-fade as required
by the AUX 3 PRE switch on the Master Section.
These are always POST -F ADE and would normally be used to
drive ef fects processing units which are fed back into the mixer
and which must fade out with the input channel. Aux 4 i s a n
individual mono send, while the 5/6 STE knob feeds the
channel signal via the BAL control (see below) as a stereo pair
to either Aux output s5&6o r , with the 7-8 switch pressed, to
Aux output s7&8 . This is par ticularly useful to feed the
growing number of stereo ef fects units now available.
The ON switch turns on all
post-fade outputs from the
channel when pressed.
This control sets the amount of the channel signal feeding the
Right and Left MIX outputs, allowing you to balance the
source in the stereo image. When the control is turned fully
right or left you feed only that side of the signal to the mix.
Unity gain is provided by the control in the centre-detented
position.
The input channel signal is always routed to MIX or GROUPS
as selected by the two ROUTING switches. The upper switch
selects MIX when released or GROUPS when pressed, while
the lower switch chooses between Groups 1-2 when released
or Groups 3-4 when pressed.
The linear F ADER gives
you smooth control of the
overall signal level in the
channel strip, allowing
precise balancing of the
various source signals
being mixed to the
Master Section.
PFL When the latching PFL switch is
pressed, a pre-fade mono sum of the
channel signals is fed to the headphones or
monitor outputs, replacing the selected
source (either Mix or T ape Return) and is
also shown on the right PPM meter . This is
a useful way of listening to any one or
more signals without interrupting the main
mix, for adjusting signal quality or to check
the input level.
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T w o Stereo Return sections each comprise a pair of
unbalanced inputs suitable for -10dBV or +4dBu sources. A
mono signal may be plugged into the Left socket only for
each pair to be fed equally to left and right busses. Each
section is provided with a routing switch to select between a
pair of Groups (switch released) or MIX (switch pressed).
Stereo Return sA&B feed Groups 1 and 2, while Retur ns C
& D feed Groups 3-4.
AUX 3 PRE The input channels provide both Pre- and Post-Fade
AUX 3 sends which may be selected desk-wide on the Master
Section. Press the AUX 3 PRE switch to make all of the AUX 3
Sends on the channel strips PRE-F ADE. This means that they will
all be unaf fected by the position of the channel faders, making
them ideal for FOLDBACK or MONITORING.
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e
For fur ther detail
see page 18
MASTER LEVEL Each of the Auxiliar y Send busses is provided
with a rotar y master level control. Aux 1-4 are individual
controls, while Aux 5/6 and Aux 7/8 are stereo pairs.
A MONO switch is provided to turn Aux
7/8 into summed mono outputs if a greater
number of mono sends is required. Note
that in this instance the position of the
channel P A N and BAL controls may af fect
the Aux 7/8 output level.
Just like the PFL switches on the channels, you can monitor the AUX 1-4 outputs by
pressing the AFL (After Fade Listen) switch, routing the AUX output signal to the
MONITOR or PHONES.
The RIGHT PPM METER also switches from the selected source to display the PFL/AFL
signal and the PFL/AFL LED lights to warn that a PFL or AFL switch is pressed.
When you let go of the switch the Monitor returns to the previous source.
Each pair of Groups may feed post-fade to two Aux
busses as a stereo pair , with a choice of Aux 5/6 or
7/8 depending on the position of the 7-8 switch. These
controls will be found par ticularly useful for sending to
reverb units, chained reverb ef fects, side fill feeds,
alternate P A stacks or individual zones in clubs.
T w o pairs of audio GROUPS may be fed from the
Channels or Stereo Returns to for m subgroups or
separate controllable outputs..
MIX routes the Groups as a stereo pair to Mix
Left/Right (Grou p1&3t oM i x Left, Group s2&4t o
Mix Right).
The F ADERS control overall GROUP level to the chosen
destination.
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