Mini Mixer
Model
MN04
Owner's Manual
Thank you for purchasing the Fostex Model MN04.
The model MN04 is a four input two output mini mixer small in size and light in weight.
Channel 1 is an input for line/mic level (switchable type) and channels 2~4 are inputs for line level
signals.
Channel 1, in particular, has, in addition to the regular mic level position, an ALC (Automatic Level Control)
circuit position which minimizes distortion against input overload when using a microphone.
The MN04 can be conveniently used in any location as it employs a two power supply system (AC adaptor
[Included]/S-006P battery [Option]). Please read through this manual before operation.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER - SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT,
FULLY INSERT.
ATTENTION:
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS
LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET
POUSSER JUSQU' AU FOND.
The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended to alert the user to the presence of uninsulated
"dangerous voltage" within the product's enclosure that may be of
sufficient magnitude to constitute a risk of electric shock to persons.
"WARNING"
"TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE."
SAFETY INSTRUCTIONS
1. Read Instructions - All the safety and operating instructions should be
read before the appliance is operated.
2. Retain Instructions - The safety and operating instructions should be
retained for future reference.
3. Heed Warnings - All warnings on the appliance and in the operating
instructions should be adhered to.
4. Follow Instructions - All operating and use instructions should be followed.
5. Water and Moisture - The appliance should not be used near water - for
example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet
basement, or near a swimming pool, and the like.
6. Carts and Stands - The appliance should be used only with a cart or
stand that is recommended by the manufacturer.
An appliance and cart combination should be moved with care. Quick
stops, excessive force, and uneven surfaces may cause the appliance
and cart combination to overturn.
7. Wall or Ceiling Mounting - The appliance should be mounted to a wall or
ceiling only as recommended by the manufacturer.
8. Ventilation - The appliance should be situated so that its location or position
dose not interfere with its proper ventilation. For example, the appliance
should not be situated on a bed, sofa, rug, or similar surface that may
block the ventilation openings; or, placed in a built-in installation, such as
a bookcase or cabinet that may impede the flow of air through the
ventilation openings.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
9. Heat - The appliance should be situated away from heat sources such
as radiators, heat registers, stoves, or other appliances (including
amplifiers) that produce heat.
10. Power Sources - The appliance should be connected to a power supply
only of the type described in the operating instructions or as marked on
the appliance.
11. Grounding or Polarization - The precautions that should be taken so
that the grounding or polarization means of an appliance is not defeated.
12. Power Cord Protection - Power supply cords should be routed so that
they are not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs, convenience
receptacles, and the point where they exit from the appliance.
13. Cleaning - The appliance should be cleaned only as recommended by
the manufacturer.
14. Nonuse Periods - The power cord of the appliance should be unplugged
from the outlet when left unused for a long period of time.
15. Object and Liquid Entry - Care should be taken so that objects do not
fall and liquids are not spilled into the enclosure through openings.
16. Damage Requiring Service - The appliance should be serviced by
qualified service personnel when:
A. The power supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits a
marked change in performance; or
E. The appliance has been dropped, or the enclosure damaged.
17. Servicing - The user should not attempt to service the appliance beyond
that described in the operating instructions. All other servicing should
be referred to qualified service personnel.
IMPORTANT NOTES IN OPERATION
1. Avoid using headphones for long hours at high volume levels.
Doing so can result in hearing failure. Any sudden increase in
headphone sound levels must also be avoided. This could result in
damage to your hearing.
2. Turn down all sound volume controls when switching on power
to this mixer.
Also, turn all volume controls when switching on/off power to the
4. Switch off power to the mixer when interconnecting it to external
equipment.
Always be sure to switch off the MN04 power when interconnecting
external equipment to the MN04.
5. Properly dispose of exhausted battery removed from the mixer.
Do not throw old battery removed from MN04 into a fire.
This is very dangerous as they could explode.
MN04. Otherwise, a sudden loud noise could have a bad affect on
you ears and your hearing.
3. Turn down the sound volume control when plugging or
6. Use an AC adaptor specified by Fostex.
Be sure to use the AC adaptor specified by Fostex. The power cord
connector polarity could be wrong depending on the manufacturer.
unplugging the headphone into the PHONES jack.
Always turn down the sound volume control when connecting or
removing the headphone plug from the PHONES jack. Doing so with
the volume control turned up, could result in hurting your ears.
NAMES AND FUNCTIONS OF THE CONTROLS
Battery compartment
The commonly sold battery is
installed here (Refer to next
page). A standard battery is
not to be used for long periods
of time.
Level selector switch
Input level is selected in
accordance to the sound
source connected to Input
Jack 1.
LINE (-10dBV):
This position is selected when a
line level sound source is
connected.
MIC (-60dBV):
This position is selected when a
microphone is used.
MIC (ALC ON; -50~-20dBV)
This is also the position when
using a microphone. When this
position is selected, the ALC
circuit becomes active and the
input level is automatically
adjusted within a -50dBV~-20dBV
range (The LED will light in green
when switched to this position and
change to red when the ALC
circuit is in operation).
Pan pot knob
Adjusts the sound position
when signals input to each
input jack is output to the
STEREO OUT jacks.
DC IN jack
The AC adaptor included with
the MN04 is connected here
(Refer to next page).
MIC
MIC
LINE
ALC ON
PANPAN
RLRL
10
5
0
10
5
0
PAN
Power switch
Switches ON-OFF (STANDBY)
power to this mixer.
<NOTE>
As a small current will be flowing even
though the mixer power is switched
off, it is recommended to unplug the
AC adaptor from the wall outlet if the
MN04 is not to be used for long hours
or extensive periods of time.
+
DC IN
9V
PAN
RL
10
5
0
-
RL
10
5
0
4321
ONSTANDBY
STEREO OUT
MN04
PEAK
10
5
0
MASTER
The schematic is indicates that
the outer sheath is minus
polarity and the inner pole plus
DC IN
polarity, and the power supply
is DC 9V.
9V
STEREO OUT jacks
These jacks are connected to the
input jacks of amplifier contained
speakers, multitrack recorders,
mixers, etc. (Refer to next page).
Power LED
This is lit when the power
supply is switched on.
RL
Peak LED
This LED will be lit when the
output signal adjusted by
the master fader overloads.
Set the master fader so that
the LED dose not light too
frequently.
Master fader
Final level of the mixed
signal output to the
STEREO OUT jacks are
adjusted with this fader.
The headphone sound
level is also adjusted by
this fader.
Input fader
Adjusts input level of the
sound source signal
applied to input jacks 1~
4.
Input jacks 1 ~ 4
External sound sources such as mic, keyboard, guitar, etc. are
plugged here. As a level selector for mic/line is provided in
channel 1, this should be used when connecting a microphone.
Line level output signals only should be connected to channels 2
~4 as these jacks are designed for line output sound sources.
PHONES jack
Monitor headphone is
plugged in here.
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