Mini Mixer

Owner's Manual
Thank you for purchasing our Fostex product. Model MN12 is a maximum 12 input 2 output mini mixer and despite its small size, can mix a multitude of sound sources and it also contains an AUX send/return connector for effect processing. In channels 1~4, trim controls are provided to allow handling line/mic inputs, and LO/HI equalizers are also provided. Channels 5~12 are exclusively for line inputs and, both monaural and stereo sound sources can be connected. Before proceeding to operate it, please carefully read this manual for correct operation.

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN

CAUTION:

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

ATTENTION:

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.
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. 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.

"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. 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.

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.
Important Notes in Operation
* 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.
Connecting the AC adaptor
* 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 MN12. Otherwise, a sudden loud noise could have a bad affect on you ears and your hearing.
Plug the AC adaptor cable into the MN12 DC IN jack and plug the AC adaptor into the wall outlet.
* Turn down the sound volume control when plugging or 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.
<NOTE> Unplug the AC adaptor from the wall outlet if the MN12 is not to be used for long hours or extensive periods of time. The schematic is indicates that the outer sheath is minus polarity, and the power supply is DC 12V.
* Switch off power to the mixer when interconnecting it to external equipment.
Always be sure to switch off the MN12 power when interconnecting external equipment to the MN12.

Names and Functions

1. DC IN jack
The AC adaptor included with the MN12 is connected here.

12. INPUT jacks

External sound sources are input here. INPUT 1~4 complies to mic/line and levels controlled with the TRIM knobs to match the input. INPUT 5~12 are exclusively for line level inputs and are in stereo. If monaural sound sources are to be input, they should be connected to the MONO marked 5, 7, 9 and 11 jacks, and for stereo, to the 5-6, 7-8, 9-10 and 11-12 jacks.

14. Panpot knobs

Adjusts the sound position when signals input to each input jack is output to the STEREO OUT (L, R) jacks.

2. Power switch

Switches ON-OFF (STANDBY) power to this mixer.

15. Input trim knobs

These are adjusted to match the output level of the sound sources connected to INPUT 1~4 (adjusting range is -60dBV~-10dBV). If the PEAK LED blinks, the levels with this knob.

3. AUX RTN jacks

This is connected to the effector output and the effector processed signals sent to the stereo L, R connectors. Input signals are adjusted with the AUX RTN knob. If the effector output is stereo, they are respectively connected to L and R, and if output in mono, it is input to L/MONO.

13. AUX send knobs

The AUX send knobs determine the level of the input signal that will be sent to AUX SEND jacks. The signal adjusted by these knobs can be sent to an external device, such as an effect unit.
16. Equalizer control knobs
These knobs control the low frequency range (100Hz, +/-13dB) and high frequency range (10kHz, +/-13dB) of the input signals of INPUT 1~4 jacks.

4. AUX SEND jack

This is connected to the effector input and the signals for effecting are controlled with the AUX SEND knobs on their respective channels and then output.

5. STEREO OUT jacks

The mixed signals is output to inputs of the MTR and Mixer. The output level is controlled with the MASTER fader.

POWER LED

+ POWER DC IN 12V STAND BY ON L/MONO R AUX RTN AUX SEND L R STEREO OUT

6. LED level meter

Signals levels from the STEREO OUT jacks are indicated by these LED'S.

EQ LO 0

+ EQ LO
+ EQ LO 0 + EQ LO 0 L + 10 R
+ AUX 5 AUX 5 AUX 5 AUX 5 AUX RTN 5

10 PAN

10 PAN/ BAL

10 PHONES

7. AUX RTN knob
Signals effect processed are adjusted by this knob and sent to stereo L and R.

L TRIM

R TRIM

PEAK 10

PEAK 10 10

8. PHONES knob

Adjusts sound of the headphones.

MASTER

5/MONO

7/MONO

9/MONO

11/MONO 12

9. MASTER fader

This fader controls the signal that is output from STEREO OUT L, R jacks.

PEAK LED

10. PHONES jack
Monitor headphone is plugged in here.

11. INPUT fader

Adjusts input level of the sound source signal applied to input jack 1-12.
Connecting the External Equipment
As shown in example below, by interconnecting MN12 as a sub mixer with a multitracker having few input ports, a multiple of sound sources can then be mixed and recorded by the multitracker.

Effect Unit

If the effector output is monaural, connect to L/MONO of the AUX RTN jack.
+ POWER DC IN 12V STAND BY ON L/MONO R AUX RTN AUX SEND L R STEREO OUT EQ HI 0 EQ HI 0 EQ HI 0 EQ HI 0 + 6 EQ LO 0 + EQ LO + EQ LO 0 + EQ LO 0 L AUX 5 + AUX 5 + AUX 5 + AUX 5 + AUX 5 AUX 5 AUX 5 AUX 5 AUX RTN 5 + 10 R

Multitracker

Sound source 10 Sound source 1 Sound source 2 Sound source 3 Sound source 4 Sound source 5 Sound source 6 Sound source 7 Sound source 8 Sound source 9
Stereo Outputs are used as examples, in the above, for sound sources 5 and 7. Mics should be connected to channels 1~4.
6mm phone plugs, shown above, must be used at the input/output jacks (except for the headphones) of MN12.

Block Diagram

A U L R X LEVEL METER
MASTER PEAK INPUT 1 -60dBV~-10dBV TRIM AUX INPUT 1 INPUT 2 INPUT 3 INPUT 4 PHONES L

STEREO OUT PAN -10dBV R

PHONES
INPUT AUX SEND 5/MONO -10dBV 6 PAN /BAL -10dBV
AUX INPUT 5/MONO - 6 INPUT 7/MONO - 8 INPUT 9/MONO - 10 INPUT 11/MONO - 12
L/MONO AUX RTN -20dBV R AUX RTN

Specifications

INPUTS/OUTPUTS
<INPUT 1~4> Connector : 6mm phone jack Input level : -60dBV ~ -10dBV Input impedance : 20k or more <INPUT 5~12> Connector : 6mm phone jack Input level : -10dBV Input impedance : 8k or more AUX RTN (L/MONO, R) Connector : 6mm phone jack Input level : -20dBV Input impedance : 8k or more STEREO OUTPUT (L, R)/AUX SEND Connector : 6mm phone jack Output level : -10dBV Output impedance : 10k or more ( x 4)

( x 8)

PHONES OUTPUT Connector : Maximum Output level : Load impedance : Equalizer HI : LO : Input conversion noise voltage : Frequency Response : Distortion Rate (T. H. D.) :
6mm stereo phone jack (~1) 40mW (at 32) 16 or more 10kHz +/-13dB 100Hz +/-13dB -120dBV (IHF-A) 20Hz ~ 20kHz 0.05%

GENERAL

Dimensions Weight Power supply Power consumption Accessories : : : : : 356 (W) x 200 (D) x 52 (H) mm Approx. 1.3 kg (without AC adaptor) DC12V (Exclusive AC adaptor) Approx. 170mA AC adaptor x 1, Owners Manual x 1

( x 2)

( x 3)
* Specifications and appearance are subject to change without notice for product improvement.
Declaration of EC Directive
This equipment is compatible with the EMC Directive (89/336/EEC) - Directive on approximation of member nation's ordinance concerning the electromagnetic compatibility and with the Low Voltage Directive (73/23/EEC) - Directive on approximati on of member nation's ordinance concerning electric equipment designed to be used within the specified voltage range.
The Affect of Immunity on This Equipment
The affect of the European specification EN50082-1 (coexistence of electromagnetic waves - common immunity specification) on this equipment are as shown below. * In the electrical fast transient / burst requirements, radiated electromagnetic field requirements and static electricity discharging environment, this could be affected by generation of noise and distortion in some cases.
FOSTEX DISTRIBUTORS LIST IN EUROPE
<AUSTRIA> NAME: ATEC Audio-u. Videogeraete VertriebsgesmbH. ADD: Im Winkel 5, A-2325 Velm, Austria TEL: (+43) 2234-74004, FAX: (+43) 2234-74074 <BELGIUM> NAME: EML N. V. ADD: Bijvennestraat 1A, B3500 Hasselt, Belgium TEL: (+32) 11-232355, FAX: (+32) 11-232172 <DENMARK> NAME: SC Sound ApS ADD: Malervej 2, DK-2630 Taastrup, Denmark TEL: (+45) 4399-8877, FAX: (+45) 4399-8077 <FINLAND> NAME: Noretron Audio ADD: Tonttumuorinkuja 4, FIN-02200 Espoo, Finland TEL: (+358) 0-5259330, FAX: (+358) 0-52593352 <FRANCE> NAME: Musikengro ADD: ZAC de Folliouses, B. P. 609, 01706 Les Echets, France TEL: (+33) 27 00, FAX: (+33) <GERMANY> NAME: Studiosound & Music GmbH ADD: Scheppe Gewissegasse 8, D-35039 Marburg, Germany TEL: (+49) 6421-12071, FAX: (+49) 6421-15522 <GREECE> NAME: Bon Studio S. A. ADD: 6 Zaimi Street, Exarchia, 106.83 Athens, Greece TEL: (+30) 1-3809605-8, 3302059, FAX: (+30) 1-3845755 <ICELAND> NAME: I. D. elrf. electronic Ltd. ADD: Armula Reykjavik, Iceland TEL: (+354) 588 5010, FAX: (+354) 588 5011
* Including non - EU countries. * underlined: contracted distributors (as of November, 1997) <ITALY> NAME: Recoton Italia Srl. ADD:V. 1 Maggio, N 18, 40050 Quarto Inferiore, (BO) Italy TEL: (+39) 51-768576, FAX: (+39) 51-768336 <THE NETHERLANDS> NAME: IEMKE ROOS AUDIO B. V. ADD: Kuiperbergweg 20, 1101 AG Amsterdam, The Netherlands TEL: (+31) 20-697-2121, FAX: (+31) 20-697-4201 <NORWAY> NAME: Siv. Ing. Benum A/S ADD: P. O. Box 145 Vinderen, 0319 Oslo 3, Norway TEL: (+47) 22-139900, FAX: (+47) 22-148259 <PORTUGAL> NAME: Caius - Tecnologias Audio e Musica, Lda. ADD: Rua de Santa Catarina, Porto, Portugal TEL: (+351) 2-2084456/325400, FAX: (+351) 2-314760 <SPAIN> NAME: Multitracker, S. A. ADD: C/Garcilaso No.9, Madrid 28010, Spain TEL: (+34) 1-4470700, 1-4470898, FAX: (+34) 1-5930716 <SWEDEN> NAME: TTS Tal & Ton Studioteknik AB ADD: Gelbgjutarevagen 4, S-Solna, Sweden TEL: (+46) 8-7340750, FAX: (+46) 8-824476 <SWITZERLAND> NAME: Audio Bauer Pro AG ADD: Bernerstrasse-Nord 182, CH-8064 Zurich, Switzerland TEL: (+41) 1-4323230, FAX: (+41) 1-4326558 <UK> NAME: SCV London ADD: 3A 6-24 Southgate Road, London N1 3JJ, England, UK TEL: (+44) 171-923-1892, FAX: (+44) 171-241-3644

FOSTEX CORPORATION

3-2-35 Musashino, Akishima-shi, Tokyo, Japan 196-0021
FOSTEX CORPORATION OF AMERICA
15431, Blackburn Ave., Norwalk, CA 90650, U. S. A.
C PRINTED IN JAPAN NOV. FX