Fostex MN-50 User manual

Warranty Statement
ModelMN"50
MIXER/COMPRESSOR
Owner’s Manual
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Fostex 1
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MIXER/
COMPRESSOR
MN-50
COMPRESSOR
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Fostex
This product is hereby warranted lor one year Irom the date of
purchase stated below, in the country of original purchase.
The warranty covers delects in materials and workmanship. It
excludes damage and deterioration arising Irom normal wear, or
damage caused by accident, abuse or misuse. It does not apply
to the equipment with the serial number defaced, modified or
removed.
This warranty is valid provided that the stamp of the shop where
you purchased the unit, and the date of purchase appear
below.
Model No.MN-50
Retailer’s stamp:
A
Date of purchase:
V
J
Fostex
FOSTEX CORPORATION 512. Miyazawa-Cho, Akishima, Tokyo, Japan
FOSTEX CORPORATION OF AMERICA 15431. Blackburn Ave., Norwalk.
CA 90650. U.S.A.
C PRINTED IN JAPAN JUL 1984 8288 0890 00
SAFETY INSTRUCTIONS SPECIFICATIONS
WARNING
READ BEFORE OPERATING
1 Read instructions—AJi the safety ana operating nstruc
tons should De read before the apoiiance is ooerateo
2 Retain Instructions—The safety and coeratrg mstruc
tons shoo'd be retained for future reference
3 Heed Warnings—Ai warnings on the aco ance ana m
the operating instructions should be adhered to
4 FcflOw Instructions—All operating ana use mstructcns
should be followed
5. water and Mcsture — The appliance should no: be used
near water—for example, near a bathtub, wajrcowf
kitchen smk. laundry tuO. in a wet basement. o« near a
swimming pool, etc
6 Veniaaion—The appriance should be s tuated so that its
location or position odos not interfere with its proper ven
tiiaton For cample, the appliance should not be situated
on a bed. sofa, rug or smitar surface mat may Week me
ventilation openings, or. placed m a bu.lt m mstaaum
such as a ocokcase or cabinet that may impede the now
ol air through the ventilation openings
7 Heat—The acP'ance should be situated away from heat
sources such as radiators, heat registers, sto.es or ome*
acpiancos (including amplifiers! that prodxe heat
8 Power Sources—The acpiiaoco should be connected to
a power svppiy only of me type described m the eperatng
instructions or as marked on me appliance
9 P ower Cord Protecticn—Power sucpiy cords should be
routed so mat they are not likely lo be walked on or
pnehed by items placed upon or agamst them, paying
partcutar attenicn to cords at pugs. convenience recep
tacies. and the pool where mey e«t irom me appliance
tO Oean*«g—The app'iance shoo'd be cleaned only as
recorrvneooed by me manutacturer
it Nonuse Periods—The Dower cord of the appliance
shOu« be unplugged irom the outlet when lelt unused tor
a png pe'Cd of time
12 Object and Uquo Entry—Care should bo taken so that
comets do not fan and Kjuds are not spued into the
enclosure through openings
13. Damage Reading Service—The appliance should bo
serveod by Qualified serve© personnel when
A The power supfy cord or me plug has been damaged.
O'
B Objects have Wien. or Kjud has been spilled into iho
appliance, or
C The apprance has been exposed to ram. or
D The acprance does not appear to operale normally or
e>hOts a marked change m performance, or
E The appance has been dropped, or the enclosure
damaged
i - Servcmg—The user shoud not attempt to servoco the
acp’arce beyond mat described m me cporalmg in-
situcions An other serve mg shoud bo rolerrod to
oafched serve© personnel
WARNING: To avoid possiblo electric shock hazard,
do not expose this applianco to rain or moisluro.
Thoro are no user serviceable parts inside.
Refer servicing to qualified service personnel.
Mixer section
Mic input
Line input
Tape input (x4)
Output
Frequency response
Distortion
Equivalent input noise
Compressor section
Compressor ratio
Maximum compression
Attack time
Release time
Power supply — Battery
Power supply — External sup.
Power consumption
Physical dimensions
Weight — Unit only
Weight — packaged
-66dBV (0.5mV) ~ -10dBV(0.3V)
-30dBV (30mV) ~ +20dBV(10V)
-16dBV (0.15V) ~ +20dBV (10V)
-20dBV (0.1V)
20Hz ~ 20KHz ±2dB
Less than 0.1%
Less than -117dBV
6 : 1
More than 20dB
0.5mS
50mS ~ 1 sec., variable
9V: S-006P, 6F22 or equivalent
+9V ~ +15V DC
15mA (at 9V), max. 20mA
44(H) X 172(W) X 102(D) mm
[1 -3/4(H) x 6-3/4(W) x 4(D) in.)
450g 11 lbs. |
560g 11 -% lbs.)
INTRODUCTION
Specifications subject to change without notice.
The Fostex Model MN-50 is a compact 5 x 1 mixer with a
built-in compressor, and is powered by a 9 volt battery. It can
also be powered by the optional 8070 AC Adaptor.
The MN-50 has one input channel for mic or line, four
channels of tape inputs and one output channel.
The mixer blends up to three tape tracks plus live signal
during complex ping-pong use. and a variable compressor
helps achieve a tight punchy sound with any signal. A useful
accessory to get the most from the X-15 or olher multitrack
recorders, the MN-50 is also a handy device for live
performances.

THE CONTROLS AND SIGNAL
CONNECTIONS
1) TAPE IN Faders (4)
Input signals applied to the
TAPE IN connectors (10) are
controlled by these faders.
When the compressor is
operating, these faders also
acts to control the amount of
compression.
2) INPUT Fader
This fader controls the input
signal applied to the MIC (8)
or LINE (11) jack. When the
compressor is operating, this
fader also acts to control the
amount of compression.
3) INPUT Selector
The three positions of this
switch are MIC/ATT/LINE.
The MIC and ATT (Attenuator)
positions are for signals at the
MIC IN jack (8); the LINE posi¬
tion is for signal at the LINE
IN jack (11).
7) GR (Gain Reduction)
Indicators
These lights indicate the
amount of gain reduction when
the compressor is operating.
MIN: Lights at the beginning
of compression.
MAX: Lights at maximum
compression.
8) MIC IN Jack
A standard 1 /4" phone jack for
plugging in a microphone or
low level electric and electronic
musical instruments.
9) External Power Supply
Input
The connector for supplying
power from an external source.
The voltage applied here must
be 9 ~ 15 volts and the inner
pole of the connector is the
positive (+) side.
4) POWER/COMPRESSOR Switch
When set to ON, both the power and the compressor are switched
ON: when set to COMP IN, the compressor is inserted after the
mixing point of TAPE IN 1 - 4 and the MIC/LINE INPUT.
5) RELEASE Control
This fader controls the time required for the compressor to return to its
original state (no compression).
6) Power LED
Lights when the power is switched on. Replace batteries when this
light becomes dim or dark.
10) TAPE IN (4)
Typically, These jacks will be used for multitrack tape inputs, but
they can also be used for any line level input.
11) LINE IN
For high output level equipment such as electronic musical
instruments, processors, etc.
12) OUTPUT
13) Battery
USING THE COMPRESSOR
BATTERY CHANGE
Set the POWER/COMPRESSOR switch (4) to COMP IN. As you
raise the fader, the MIN LED (7) will light, indicating that the
compressor is operating.
Raising this fader further will cause the MAX LED (7) to light,
indicating that the maximum amount of compression has been
reached.
Typically, Ihe level is sel where the MAX LED lights infrequently, if at
all. The release time (50msec — 1 sec) is adjusted by the fader (5).
The setting will differ according to Ihe instrument or vocal, as well as
the particular sonic effect you want to hear. Listen, and set it to the
best sounding position,
Open the bottom lid and snap on the connector to the battery.
’If the mixer is not to be used for a long period of time, remove the
battery.