Studiomaster MIXDOWN Owner's Manual
Text of the manual
for a RECORDING
system
•••••••
14
3:3
Typical
connections
for a LIVE
system
•••••••
16
CHAPTER
4
-
GETTING
TO KNOW MIXOOWN_ •••••••••••••••••••••••••••••••
4:1
First
things
first
•••••••••••••••
18
4:2
The
Input
Channel
connectors
••••••••••
18
4:3
How
to get
the
Input
sound
through
to the monitor
speakers
18
4:4
The
Equalisation
section
on
the
Input
Channels.
20
4:5
The
SOLO
button
••••••••••••••••••••
20
Other
SOLO
buttons
•••••••••••••••••••
21
The
Channel
ON
button
•••••••••••
21
The
L-R
routing
button
•••••••••••••••••
21
The
Auxiliaries
••••••••••••
21
Auxiliaries
5·&
6
•••••••••••••••••••••
22
4:9
Input
Channel
SEND/RET
•••••••••••••
23
4:10
The
DIRECT
OUT
•••••••••••••
23
4:11
Phantom
Powering
••••••••••••••••••
24
4:12
The AUX
LINE
INPUTS
••••••••••••
24
4:13
The
Stereo
Return
•••••••••••
25
4:14
Talkback
••••••••••••••••••••
25
4:15
The Master
Section
•••••••••••••••••••
25
4:16
The
2-track
Return
•••••••••••••••••
26
4:17
Tape
Monitoring
Procedure
•••••••••••••
26
4:18
Tape
Remixing
Procedure
••••••••••••••••
27
4:19
2-track
Mixdown
Procedure
•••••••••••••••
28
CHAPTER
5
-
STEP
BY
STEP
USE OF MIXOOWN •••••••••••••••••••••••••••••
5:1
Multitrack
Tape
Recording
•••••••••••••
29
5:2
Preparing
the
console
•••••••••••••••••••
29
5:3
Initial
Multitrack
Recording
••••••••••••
31
5:4
Playing
back
the Multitrack
Recording
•••••••••
33
5:5
Overdubbing
••••••••••••••••
33
5:6
Tape
Remix
•••••••••••••••
34
5:7
Stereo
Mixdown
- The
Final
Mix
•••••••••••
35
5:8
An alternative
Mixdown
method
•••••••••••••
36
5:9
AUX
LINE
Mixdown
••••••••••••••••
37
5:10
Live
Performances
•••••••••••••••••••
37
5:11
Preparing
the
console
•••••••••••••
37
5:12
The
Soundcheck
•••••••••••••
40
5:13
The
Performance
••••••••••••••
41
CHAPTER
6
-
LEVEL
OPTIONS •••••••••••••••••••••••••••••••••••••••••••
6:1
Left/Right
Outputs
•••••••••••••••••••
42
6:2
Subgroups
•••••••••••••
42
CHAPTER
7
-
EXPANSION
••••••••••••••••••••••••••••••••••••••••••••
_
7:1
Fitting
Procedure
•••••••••••••
44
7:2
More
than
24
Inputs
••••••••••••
44
CHAPTER
8
-
SPECIFICATIONS
•••••••••••••••••••••••••••••••••••••
__
Specifications
•••••••••••••••••••
46
Block
Schematic
••••••••••••••••
48
CHAPTER
9
-
GLOSSARY OF TERMS •••••••••••••••••••••••••••••••••••••••
Glossary
of
terms
•••••••••••••••••
50
CHAPTER
10
-
MARKER SHEETS_
••••
__
••••
__
••••••••••••••••••••••••
The
Marker
Sheets
•••••••••••••••
52
Input
Channels
••••••••••
53 - 60
16.4.8
Output
Section
•••••••••••
61
16.8.16
Output
Section
.••••••••••••••
62
••
'!II
'i..•
;...,
ii...
"ii•••
Iii
•••
~-
1:2 READ THIS
1:1 GENERAL INTRODUCTION TO MIXDOWN
1
and
16.8.16.
(differences
1)
An
INTERNAL
POWER SUPPLY model is identified by the 3-pin
power
input socket found on the rear of the console.
2)
An
EXTERNAL
POWER
SUPPLY model is identified by
a
6-pin
(XLR
type)
DC connector found on the rear of the console. An
external
power
supply
Type
EP4 would be supplied as
standard
with
the
console.
The 16.4.8 has 26 inputs in total at mixdown and the 16.8.16 has 34.
DO NOT switch on the console until this section has been read:
MIXDOWN
3)
The
EXTERNAL
POWER SUPPLY model may by expanded by more
than
2
Many
studios are now using more and more MIDI based outboard equipment
and
instruments. A normal console would require such instruments to be
recorded
via multitrack or use up valuable input channels to pass them
to
stereo.
This
would unnecessarily, but unavoidably, add
noise
to
signals
which
are virtually perfect. The MIXDOWN consoles
can
avoid
this
as
they
have basic input sections routed direct to
stereo
and
with
monitoring controls. They are able to utilise the multitrack
for
"live"
sounds (vocalists, guitars, brass etc.) only, while
monitoring
the
sequenced
MIDI
keyboards, drum machines etc.
connected
to
the
AUXILIARY
LINE
INPUTS. At the 2-track mixdown stage,
the
multitrack
recording
would be mixed with the MIDI sequenced instruments from
the
basic
input
sections.
This
could make it
possible
for
a
smaller
multitrack
to
be
used, because the multi-output
drum
machines
and
keyboards
- which would have normally consumed several tracks and made
bouncedowns
inevitable
could now bypass the
multitrack
operation
totally.
There
are
two
sizes of MIXDOWN mixing console: 16.4.8
This
manual
has
been
written to cover
both
consoles
between the two are identified in Chapter 2).
Although
they have been designed to meet the demands of today's studio
environment,
MIXDOWN
mixing
consoles
can be used
equally
well
in
recording and live applications.
Please
read this manual thoroughly from front to back, then you can be
sure that you are getting the best from your MIXDOWN.
NOTE:
The
internal
power supply and the EP4 external
power
supply
are
sufficient to allow expansion of a MIXDOWN by a further
8
input channels (2 expanders), a total of 24 inputs.
BEFORE
PROCEEDING:
DO NOT CONNECT THE AC SUPPLY LEAD TO
THE
CONSOLE
OR EXTERNAL POWER SUPPLY
The
following
section relating to the different supplies fitted to
a
MIXDOWN
mixing console MUST be rOeadbefore switching on. The
standard
console
is
available
with
either an internal power
supply,
or
an
external power supply.
it is at
the
back.
The
voltage
selection
procedure
is the
same
for all
three
variations.
Check
that
the
pointer
(see diagram
above)
is pointing
at
the
local
AC
supply
voltage
(100,
120,
220
or
240V
stamped
on
the
voltage
selector).
If
it
is,
then
go ahead
and
connect
AC
power
to
the
console/external
power
supply.
If
the voltage
indicated
is wrong,
then
lever
out
the
voltage
selector
(there
is a small
notch
for this
purpose
between
the
selector
and
the
AC
power
input).
Turn
the
selector
round
until
the
pointer
is pointing
to the correct
voltage,
then
press
it back
in.
You
will
have
noticed
a fuse
while
the
selector
was
out.
This
is
console's
or power
supply's
AC
fuse.
Internally
powered
consoles
are
now
ready
to
be
switched
Externally
powered
models
should
now
have
the
DC
power
lead
from
power
supply
connected
to the
6-pin
socket
on
their
rear
panel.
power
supply
is now
ready
to be
switched
on.
REMEMBER,
on
an
external
power
supply
model,
48V
Phantom
Power
to
be
switched
ON at
the
power
supply
before
it can
be
switched
ON
the console.
48V Phantom
Power
is explained
in 4:11.
the
on.
the
The
has
at
WARNING:
ONLY
use
STUDIOMASTER
MIXDOWN
consoles
with
STUDIOMASTER
external
power
supplies •
2
Studiomaster
•
= Return, Tip = Send,
post-EQ
and
pre-fader.
Return impedance 5kohm, nominal
level
+4dBm.
3
TAPE
input
Unbalanced 0.25" jack wired Sleeve
=
Ground,
Tip = Signal. Drives the input channel or
TAPE
monitor
section with an
unbalanced
signal
from
the multitrack tape recorder. On
expanders,
this
is marked "LINE B", for use as an extra LINE
input.
Input impedance typically 10kohm.
Maximum
input level +30dBm.
o
FIG 1
3
the
when
left
re-
+48V
input
OUT
Mono
0.25"
jack
wired
Sleeve
=
Tip
= Signal. Post fader. Nominal
level
Minimum
load
(for
reference
level)
DIRECT
Ground,
-10dBV.
25kohms.
5
7
TAPE
button
switches the input channel from
MIC
XLR
or
LINE
jack to
the
TAPE
jack
depressed,
so
that
tape
returns
can
be
connected
thus
eliminating
the
need
for
6
+48V
button.
When
depressed,
applies
phantom
supply 'to Pins 2 and 3 of XLR MIC
for use with condenser microphones.
The
16.8.16
input
channel
is
shown,
features
unique to the 16.4.8 are shown in
~Jtil
which, after turning
is still too high to
semi-parametric
6 and
on
expanders)
the
LINE
jack
when
input channel
to
be
low
i
ance
balanced
LINE lev
signal.
not shown)
(Inputs
the HIC
that
t
thus
eliminatin
remix.
(Inputs
9
m
HIC
XLR
This
allows
either
a
or unbalanc~d
EQUALISATION.
A
3-band
comprising of:
High
Frequency
control
is an
active
shelving-
type
filter
providing
16dB of cut or
boost
at
12kHz.
The filter is a 2-pole design with a slope
of 12dB/octave.
MID
frequency
network
consists
continuously
variable
centre
frequency
with
a
sweep
from
280Hz to
8kHz.
A
control
provides
16dB
of cut or
boost
chosen
centre
frequency. The filter is a
design
with
a peaking response, and a "Q"
of approximately 1.5.
Low
Frequency
network
consists
continuously
variable shelving frequency
with
a
sweep
from
25Hz to
350Hz.
A
control
provides
16dB
of cut or
boost
chosen
shelving frequency. The filter is
design with a slope of 12dB/octave.
GAIN
control
with
45dB range ensures
that
the
input
- be it MIC, LINE or TAPE is at a
suitable
level
to drive the channel. It is used to set the
nominal
channel signal level by varying the
pre-
amp
gain, preserving maximum headroom and minimum
noise without loading the input signal.
PAD
switch
provides
20dB
inputs
when
depressed.
It
attenuate
an incoming signal
the
GAIN control to minimum,
be usable.
Studiomaster
patching
during remix. On expanders, this
button
selects LINE B input when depressed.
8
9
12
AUXILIARIES.
There
are
six
auxiliary
busses,
five
of
which are simultaneously
accessable
on
the
channel. Auxs 1,2,3
& 4 are post-fade
(for
use
mainly as effects sends). Aux 5 is pre-EQ and
pre-fade.
Aux
6
is pre-fade. Aux 5
and
6
are
intended
for studio cue/stage foldback
purposes.
A
switch
is provided to access either Aux
4
or
11
EQ
CUT
switch bypasses the equalisation
circuit
for a flat frequency response.
10c
10a
10b
10
o
FIG 1
4
allows a left/right
stereo
balance
when
the channel is routed to L-R outputs. It can
also
bias
the
channel's
output
to
odd/even
numbered
groups
by
moving
it
from
the
zero
position.
Panning
fully
left
routes
to
odd-
numbered
groups only, panning fully right
routes
to even-numbered groups only.
14
CLIP
indicator.
This
LED
illuminates
whenever
the
signal approaches the maximum running
level.
It
monitors
all stages within the input
channel
and
illuminates
at 4dB prior to
clipping.
This
LED
also
illuminates
whenever the
SOLO
switch
is
depressed,
to indicate that SOLO is
in
use.
While
indicating SOLO, it ceases to act as a CLIP
indicator.
15
SOLO
button.
A
pre-fade
monitor
switch
which
allows
the
channel signal to be isolated on
the
monitor/headphone
system
(along with
any
other
channels
which are in SOLO condition). The signal
level can be seen on the RIGHT output bargraph.
16
CH.
ON
button
and
LED
indicator.
LED
li9hts
when
the switch is depressed. In the OFF position'
most
signals
from
the channel
are
muted.
The
exceptions
are
SOLO operation,
CLIP
indication
and Aux 5 (as it is pre-EQ)•
17
L-R
routing
button. When depressed, this
routes
the
post-fader,
post-pan signal directly to
the
left/right
outputs, bypassing the subgroups.
The
signal
may
be used for final multitrack
mixdown
in
recording studios or for routing of signals to
the
left/right
outputs
in
live
performance
applications.
18
ROUTING
BUTTONS.
These
allow
bussing
of
the
channel
signals
to
any
combination
of
group
outputs
simultaneously.
For
use
in
multitrack
recording
or subgrouping signals, such as
drums,
during
live
sound
reinforcement.
Exclusive
routing is achieved using the PAN control.
19
FADER.
High
quality
100mm
channel
fader
with
10dB gain.
MIXDOWN
o
FIG 1
5