4U 19" Rack Mounted Club Mixer
19"- 4HE- CLUBMIXER FÜR RACKEINBAU
MEZCLADOR CLUB DE 4U PARA MONTAR EN RACK 19"
CONSOLE DE MIXAGE CLUB RACKABKE 19'' X 4U
OPERATIONS MANUAL
BEDIENUNGSHANDBUCH
MANUAL DEL OPERADOR
MANUEL D’INSTRUCTIONS
MULTI LANGUAGE INSTRUCTIONS
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PLEASE READ BEFORE USING APPLIANCE, IMPORTANT WARNING & SAFETY INSTRUCTIONS!
CAUTION
RISK OF ELECTRICAL SHOCK DO NOT OPEN!
CAUTION: This product satisfies FCC regulations when shielded cables and connec-
tors are used to connect the unit to other equipment. To prevent electromagnetic
interference with electric appliances such as radios and televisions, use shielded
cables and connectors for connections.
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.
The lightening 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.
READ INSTRUCTIONS: All the safety and operating instructions should be read
before the product is operated.
RETAIN INSTRUCTIONS: The safety and operating instructions should be retained
for future reference.
HEED WARNINGS: All warnings on the product and in the operating instructions
should be adhered to.
FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.
CLEANING: The product should be cleaned only with a polishing cloth or a soft dry
cloth. Never clean with furniture wax, benzine, insecticides or other volatile liquids
since they may corrode the cabinet.
ATTACHMENTS: Do not use attachments not recommended by the product manu-
acturer as they may cause hazards.
WATER AND MOISTURE: Do not use this product near water, for example, near a
bathtub, wash bowl, kitchen sink, or laundry tub; in a wet basement; or near a
swimming pool; and the like.
ACCESSORIES: Do not place this product on an unstable cart, stand, tripod, brack-
et, or table. The product may fall, causing serious injury to a child or adult, and
serious damage to the product. Use only with a cart, stand, tripod, bracket, or table
recommended by the manufacturer, or sold with the product. Any mounting of the
product should follow the manufacturer’s instructions, and should use a mounting
accessory recommended by the manufacturer.
CART: A product and cart combination should be moved with care. Quick stops,
excessive force, and uneven surfaces may cause the product and cart combination to overturn. See Figure A.
VENTILATION: Slots and openings in the cabinet are provided for ventilation and to
ensure reliable operation of the product and to protect it from overheating, and
these openings must not be blocked or covered. The openings should never be
blocked by placing the product on a bed, sofa, rug, or other similar surface. This
product should not be placed in a built-in installation such as a bookcase or rack
unless proper ventilation is provided or the manufacturer’s instructions have been
adhered to.
POWER SOURCES: This product should be operated only from the type of power
source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company.
LOCATION: The appliance should be installed in a stable location.
NON-USE PERIODS: The power cord of the appliance should be unplugged from the
outlet when left unused for a long period of time.
GROUNDING OR POLARIZATION:
• If this product is equipped with a polarized alternating current line plug (a plug
having one blade wider than the other), it will fit into the outlet only one way. This
is a safety feature. If you are unable to insert the plug fully into the outlet, try
reversing the plug. If the plug should still fail to fit, contact your electrician to
replace your obsolete outlet. Do not defeat the safety purpose of the polarized
plug.
• If this product is equipped with a three-wire grounding type plug, a plug having
a third (grounding) pin, it will only fit into a grounding type power outlet. This is a
safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the
grounding type plug.
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 product.
OUTDOOR ANTENNA GROUNDING: If an outside antenna or cable system is con-
nected to the product, be sure the antenna or cable system is grounded so as to
provide some protection against voltage surges and built-up static charges. Article
810 of the National Electrical Code, ANSI/NFPA 70, provides information with
regard to proper grounding of the mast and supporting structure, grounding of the
lead-in wire to an antenna discharge unit, size of grounding conductors, location
of antenna-discharge unit, connection to grounding electrodes, and requirements
for the grounding electrode. See Figure B.
LIGHTENING: For added protection for this product during a lightening storm, or
when it is left unattended and unused for long periods of time, unplug it from the
wall outlet and disconnect the antenna or cable system. This will prevent damage
to the product due to lightening and power-line surges.
POWER LINES: An outside antenna system should not be located in the vicinity of
overhead power lines or other electric light or power circuits, or where it can fall
into such power lines or circuits. When installing an outside antenna system,
extreme care should be taken to keep from touching such power lines or circuits
as contact with them might be fatal.
OVERLOADING: Do not overload wall outlets, extension cords, or integral conven-
ience receptacles as this can result in a risk of fire or electric shock.
OBJECT AND LIQUID ENTRY: Never push objects of any kind into this product
through openings as they may touch dangerous voltage points or short-out parts
that could result in a fire or electric shock. Never spill liquid of any kind on the
product.
SERVICING: Do not attempt to service this product yourself as opening or removing
covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel.
DAMAGE REQUIRING SERVICE: Unplug this product from the wall outlet and refer
servicing to qualified service personnel under the following conditions:
• When the power-supply cord or plug is damaged.
• If liquid has been spilled, or objects have fallen into the product.
• If the product has been exposed to rain or water.
• If the product does not operate normally by following the operating instructions.
Adjust only those controls that are covered by the operating instructions as an
improper adjustment of other controls may result in damage and will often require
extensive work by a qualified technician to restore the product to its normal operation.
• If the product has been dropped or damaged in any way.
• When the product exhibits a distinct change in performance, this indicates a
need for service.
REPLACEMENT PARTS: When replacement parts are required, be sure the service
technician has used replacement parts specified by the manufacturer or have the
same characteristics as the original part. Unauthorized substitutions may result in
fire, electric shock, or other hazards.
SAFETY CHECK: Upon completion of any service or repairs to this product, ask the
service technician to perform safety checks to determine that the product is in
proper operating condition.
WALL OR CEILING MOUNTING: The product should not be mounted to a wall or
ceiling.
HEAT: The product should be situated away from heat sources such as radiators,
heat registers, stoves, or other products (including amplifiers) that produce heat.
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INTRODUCTION:
Congratulations on purchasing a Gemini MM-04 4U 19",
4 channel, rack mounted audio FX mixer. This state of
the art mixer is backed by a three year warranty, excluding crossfader. The crossfader is backed by a separate 90
day warranty. Prior to use we suggest that you carefully
read all the instructions.
FEATURES:
- 4U 19" rack mounted audio FX mixer
- 4 stereo channels
- 6 line, 3 mic, 2 convertible phono/line RCA inputs
- 3 band rotary line EQ control per channel with cut feature
- Bright blue LCD display
- 25 DSP effects module with a wide range of parameters
- Dry/Wet fader control
- Rotary control FX selector
- Rotary parameter control
- Large backlit soft touch on/off EFX button
- Fully removable, user replaceable Rail Glide cross fader
- Assignable cross fader
- Rotary gain control per channel
- Dual VU display with bright LED
- Push-button cue section with cue/PGM fader control
- Rotary master, zone, balance and cue volume controls
- Master, zone & record RCA outputs
- Balanced master output
- XLR-1/4" combo mic input & 2 x 1/4” Mic inputs
- 2 band rotary mic EQ controls
- Rotary mic volume control
- Talk-Over feature
- Face plate located 1/4" headphone jack
CAUTIONS:
1. All operating instructions should be read before using
this equipment.
2. To reduce the risk of electrical shock, do not open the
unit. Please refer servicing to a Gemini qualified service
technician.
IN THE USA ~ IF YOU EXPERIENCE PROBLEMS WITH
THIS UNIT CALL GEMINI CUSTOMER SERVICE AT: 1 (732) 738-
9003. DO NOT ATTEMPT TO RETURN THIS EQUIPMENT TO
YOUR DEALER.
3. Do not expose this unit to direct sunlight or to a heat
source such as a radiator or stove.
4. This unit should be cleaned only with a damp cloth. Avoid
solvents or other cleaning detergents.
5. When moving this equipment, it should be placed in its
original carton and packaging. This will reduce the risk of
damage during transit.
6. DO NOT EXPOSE THIS UNIT TO RAIN OR MOIS-
TURE.
7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT
ON ANY CONTROLS OR SWITCHES.
CONNECTIONS:
1. Before plugging the power cord in, make sure that the
VOLTAGE SELECTOR (1) switch is set to the correct
voltage (115 or 230).
2. Located on the rear panel is the 115/230V PLUG (2).
Before plugging the power cord in, make sure the
POWER SWITCH (64) located on the face panel is turned
off.
3. The MM-04 has 4 sets of outputs:
- The MASTER OUTPUT (4) jacks also connect to the
main amplifier with RCA cables.
- The BALANCED MASTER OUTPUT (3) jacks connect
the mixer to main amplifier using standard cables with
1/4" TRS connectors. We recommend using balanced
cables if the distance to your amp is 10 feet or more.
- The REC OUTPUT (5) jacks can be used to connect
the mixer to the record input of your recording unit, thus
enabling you to record your mix by connecting these units
with RCA cables.
- The ZONE OUTPUT (6) jacks allow the connection of
an additional amplifier with RCA cables.
4. Located on the rear panel are 2 PHONO(PH)/LINE(LN)
convertible RCA inputs (13, 10), and 4 LN RCA inputs
(16, 14, 11, 7). The convertible RCA inputs (13, 10) for
CHANNEL (CH) 2 (35) & CH 3 (42) allow PH and LN
level equipment to be connected to the mixer. To adjust
the CONVERTER(S) (9, 12), just flip the switch UP to
operate PH 1 or PH 2. Flip the switch DOWN to operate
through LN 2 or LN 4. The PHONO INPUTS (10,13) only
accept turntables with a magnetic cartridge. When using
(a) turntable(s), you will need to ground the RCA cable(s)
by screwing in the grounding fork(s) to the GROUNDING
SCREW (65) located in the back panel of the MM-04
mixer. This is located in between the CONVERTER
SWITCHES (9, 12). The stereo LN INPUTS only accept
line level inputs such as a CD, DAT, MiniDisc, etc.
NOTE: WHEN USING A TURNTABLE, NOT ATTACHING A GROUND MAY
CAUSE A SYSTEM "HUM."
5. Headphones may be plugged into the face-plate located
1/4" HEADPHONE JACK (58).
6. The MIC 1 (17) input (located on the face panel) is a
combination XLR & ¼" connector. The MIC 2 (15) & MIC
3 (8) inputs (in the rear panel) accept only 1/4" connectors. The MIC inputs accept balanced and unbalanced
connections.
OPERATIONS:
1. Once all of your connections have been made in the rear
panel, turn on the mixer by pressing the POWER
SWITCH (64).
2. CH 1: To bring this channel into program (PGM), you
must first decide which line will be in use. Use the line
switch to toggle from LN 1 (16) to MIC 2 (15) on this channel. Slowly raise the CH 1 SLIDE CONTROL (28) to a
comfortable level, once you've selected the proper line.
You can further modify the sound output of this channel
by adjusting the rotary GAIN (23), HIGH (25), MID (26),
LOW (27) controls located to the left of the CH 1 SLIDE
CONTROL (28).
3. CH 2: To bring this channel into PGM, you must first
decide which line will be in use. Use the LN SWITCH (29)
to toggle from PH1/LN 2 (13) to LN 3 (14) on this channel. Slowly raise the CH 2 SLIDE CONTROL (35) to a
comfortable level, once you've selected the proper line.
You can further modify the sound output of this channel
by adjusting the rotary GAIN (30), HIGH (32), MID (33),
LOW (34) controls located to the left of the CH 2 SLIDE
CONTROL (35).
4. CH 3: To bring this channel into PGM, you must first
decide which line will be in use. Use the LN SWITCH (36)
to toggle from PH2/LN 4 (10) to LN 5 (11) on this channel. Slowly raise the CH 3 SLIDE CONTROL (42) to a
comfortable level, once you've selected the proper line.
You can further modify the sound output of this channel
by adjusting the rotary GAIN (37), HIGH (39), MID (40),
LOW (41) controls located to the left of the CH 3 SLIDE
CONTROL (42).
5. CH 4: To bring this channel into PGM, you must first
decide which line will be in use. Use the LINE SWITCH
(43) to toggle from LN 6 (7) to MIC 3 (8) on this channel. Slowly
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raise the CH 4 SLIDE CONTROL (49) to a comfortable
level, once you've selected the proper line. You can further modify the sound output of this channel by adjusting
the rotary GAIN (44), HIGH (46), MID (47), LOW (48)
controls located to the left of the CH 4 SLIDE CONTROL
(49).
NOTE: FOR OPTIMAL PERFORMANCE, BEGIN PROGRAM MIX
WITH ROTARY GAIN (23, 30, 37, 44) CONTROLS SET TO NOON
(ROTATE IT TO THE MIDDLE POSITION). MAKE ALL ADJUSTMENTS IN SOUND OUTPUT WITH THE USE OF YOUR CHANNEL
SLIDE CONTROLS (28, 35, 42, 49), ZONE (56), BALANCE (55), AND
MASTER (57) VOLUME ROTARY CONTROLS. THIS WILL PREVENT
SIGNAL OVERLOAD & DECREASE DISTORTION. ONCE YOU HAVE
MODIFIED YOUR SOUND & WOULD LIKE TO INCREASE THE OUTPUT OF YOUR SOUND, THEN YOU MAY ADJUST THE ROTARY
GAIN CONTROLS IF NEEDED.
6. ASSIGN: There are 2 rotary controlled ASSIGN
SWITCHES (61, 62), each having 5 settings 1, 2, 3, 4 or
OFF). The LEFT (61) assign control allows you to direct
CH 1, 2, 3, 4 through the LEFT side of the CROSS
FADER (63). The RIGHT (62) ASSIGN SWITCH allows
you to direct CH 1, 2, 3, 4 through the RIGHT side of the
CROSS FADER (63).
7. CROSS FADER SECTION: The CROSS FADER (63)
allows you to mix from one source to another. The mixer
features an assignable CROSS FADER (63). The
ASSIGN SWITCHES (61, 62) allow you to select which
channel will play through each side of the CROSS
FADER (63). The CROSS FADER (63) in your unit is
removable and if the need arises can be easily replaced.
Your Gemini mixer comes with an RG-45 (RAIL-
GLIDE™) Dual-Rail cross fader. Rail Glide™ cross
faders have internal dual stainless steel rails that allow
the slider to ride smoothly & accurately from end to end.
Another cross fader we have available is the RG-45
PRO (PRO SCRATCH™) cross fader with a special
curve designed for scratch mixing. Just purchase one
from your Gemini dealer & follow the instructions:
REPLACEABLE CROSSFADER
1. Unscrew the outside FADER plate screws (B). Do not
touch INSIDE SCREWS
(C).
2. Carefully remove old
cross fader and unplug
CABLE (D).
3. Plug new Cross fader
into CABLE (D) and
place back into mixer.
4. Screw Cross fader to
mixer with the FADER PLATE SCREWS (B).
NOTE: DO NOT APPLY PRESSURE WHILE USING THE
CROSSFADER. LIGHTLY GLIDE THE CROSSFADER BACK AND
FORTH. PRESSING DOWN ON THE CONTROLS CAN BEND CONTACTS AND CAUSE A LOSS OF SOUND.
7. OUTPUT SELECTION CONTROL: Once you are com-
fortable with the sound level of your music you may adjust
the volume with the MASTER (57) rotary control. You may
adjust the volume of the ZONE (6) output with the ZONE
(56) rotary control. You may also adjust the BALANCE
from left to right with the BALANCE (55) rotary control.
8. CUE: By connecting a set of headphones to the HEAD-
PHONE (58) jack, you can monitor any or all CH(s).
Press CUE BUTTONS (24, 31, 38, 45) for CH(s) 1
through 4 to assign the CH(s) to be monitored. The
respective CUE LED indicators will glow when in use.
Use the CUE (59) rotary control to adjust the cue volume
without changing the overall mix. By moving the CUE/PGM
fader control (60) to the LEFT you will be able to monitor the assigned cue signal. Moving the control to the
RIGHT allows you to monitor the PGM. Moving the
CUE/PGM fader control (60) to the MIDDLE allows CUE
mix with PGM.
9. MIC SECTION: Plug your main MIC into the XLR-1/4"
(17) jack located on the face panel. The rotary controls for
HIGH (19) & LOW (20) allow you to adjust the tone of MIC
1 (17). MIC 1 rotary volume control (18), above the
HIGH(19)/LOW(20) controls, adjusts the decibel level of
MIC 1 (17). You may also plug a second mic into the rear
panel 1/4” MIC input (15). The tone & decibel level of
MIC 2 (15) and MIC 3 (8) are controlled by the CH 1 (28)
& CH 4 (49), slide controls, respectively, the 3 band rotary
EQ (HIGH (25, 46), MID (26, 47), LOW (27, 48)) controls
& GAIN (23, 44) rotary controls.
10. TALKOVER: The purpose of the TALKOVER (21) is to
allow the program playing to be attenuated so that the
MIC may be heard above the music. The
MIC/TALKOVER switch (21) controls MIC 1 (17) and has
3 settings:
- When MIC/TALKOVER (21) is in the BOTTOM posi-
tion, MIC 1 (17) and TALKOVER (21) are OFF.
- When MIC/TALKOVER (21) is in the CENTER position,
MIC 1 (17) is ON. The LED INDICATOR glows when
TALKOVER (21) is OFF and MIC 1 is ON.
- When MIC/TALKOVER (21) switch is in the TOP posi-
tion, MIC 1 (17) and TALKOVER (21) are ON and the vol-
ume of all sources except MIC 1 is lowered by -16 dB.
11. EFX SECTION: This unit features EFX controls to aug-
ment the sound of your mix. To activate the effects pad
press the EFX ON/OFF (50) button. Use the rotary EFX
(51) control to change the function of the effects. Use the
rotary PARAMETER CONTROL (52) to alter the dynam-
ics of the effect. Use the DRY/WET (53) fader control to
adjust the amount of effect running through to PGM. All
adjustments made with the EFX section will be shown in
the EFX Liquid Crystal Display (66).
12. VU METER: The VU METER (54) indicates the MAS-
TER (4, 3) output of the left & right stereo levels.
SPECIFICATIONS:
INPUTS:
Phono:..........................................................3 mV, 47 kOhm
Line:..........................................................150 mV, 10 kOhm
Mic 1, 2, & 3:................................1.5 mV, 1 KOhm Balanced
OUTPUTS:
Amp/Zone:................................................0 dB 1V, 400 Ohm
Max:.........................................................20V Peak-to-Peak
Rec:............................................................225 mV, 5 kOhm
GENERAL:
Frequency Response:........................20Hz - 20KHz +/- 2 dB
Distortion:....................................................................0.02%
S/N Ratio:.................................................Better Than 80 dB
Talkover Attenuation:..................................................-16 dB
Headphone Impedance:...........................................16 Ohm
Power Source:..............................115/230V, 50/60Hz, 10W
Unit Dimensions:..................................W 19" x H 3.4" x D 7"
...................................................(482.6 x 86.36 x 177.8 mm)
Weight:......................................................8.95 lbs (4.05 kg)
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTIFICATION
FOR IMPROVEMENT.
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