Gemini MM-03, Operation Manual

INTRODUCTION:

Congratulations on purchasing a 

Gemini MM-03 4U 19",

5 channel, rack mounted club mixer

. This state of the

art mixer is backed by a three year warranty, excluding

crossfader and channel slides. The crossfader and chan-

nel slides are  backed by a separate 90 day warranty.

Prior to use we suggest that you carefully read all the

instructions.

FEATURES:

- 4U 19" rack mounted club mixer

- 5 stereo Channels

- 8 line, 3 Mic, 2 convertible phono/line, RCA inputs 

- 3 band rotary line EQ control per channel with cut feature

- Fully removable, user replaceable Rail Glide crossfader

- Assignable cross fader 

- Rotary gain control per channel 

- Dual display with bright LED

- Push-button cueing with cue/PGM fader control

- Rotary master, zone, balance & cue volume controls

- Master, zone & record RCA outputs 

- Balanced master output

- XLR-1/4" combo Mic input 

- 2 band rotary Mic EQ control with cut feature

- Rotary Mic volume control 

- Auto Talk-Over feature 

- Face plate located 1/4" headphone input

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 qualified service techni-

cian. 

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 LUBRI-

CANT ON ANY CONTROLS OR SWITCHES

.

CONNECTIONS:

1. Before plugging the power cord in, make sure that the

VOLTAGE SELECTOR

(2) switch is set to the correct

voltage (115 or 230). 

2. Located on the rear panel is the 

115/230V PLUG

(1)

used to plug in the power cord. Before plugging the power

cord in to the 

115/230V PLUG

(1) and then into an elec-

trical output, make sure the 

POWER SWITCH

(70) locat-

ed on the face panel is turned 

OFF

.

3. The 

MM-03

has 

4

sets of outputs:

- The 

BALANCED MASTER 

(6) output jacks connect-

connect the mixer to main amplifier using standard cables

with 

1/4" CONNECTORS

. We recommend using balanced

cables if the distance to your amp is 10 feet or more.

- The 

MASTER

(3) output jacks also connect to the main

amplifier with RCA cables.    

-The 

ZONE 

(5) output jacks allow the connection of an

additional amplifier with RCA cables.

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 equip-

ment to your dealer.

- The 

REC 

(4) output jacks can be used to connect the

mixer to the record input of your recording unit, thus

enabling you to record your mix with RCA cables.        

4. Located on the rear panel are 

2 Phono(PH)/Line(LN)

convertible RCA inputs

(13, 16), and 

6 line RCA inputs

(7, 8, 9, 14, 17, 18). The 

convertible RCA inputs

for  

CH

2

(38) & 

CH 3

(45) allow

PH 

and 

LN

level equipment to be

connected to the mixer. To adjust the 

CONVERTER(S)

(12, 15), 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 

PH INPUTS

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

(11) located in the

back panel of the 

MM-03 

mixer. This is located in between

the 

CONVERTER SWITCHES

(12, 15). The stereo 

LN

INPUTS

only accept line level inputs such as a 

CD

, 

DAT

,

MiniDisc

, 

etc

.

NOTE: NOT ATTACHING A GROUND MAY CAUSE A SYSTEM "HUM."

5. Headphones may be plugged into the face-plate located

1/4" HEADPHONE JACK

(60).

6. The 

MIC 1

(20) input (located on the front panel) is a

combination of an 

XLR

and 

¼" connector

.  The 

MIC 2

(19) and 

Mic 3

(10) inputs (in the rear panel) accept only

1/4" connectors

.  The mic inputs accept balanced and

unbalanced microphones. 

OPERATIONS:

1. Once all of your connections have been in the rear panel,

turn on the mixer by pressing the 

POWER SWITCH

(70).

2.

CHANNEL 1:

To bring this channel in to program output

(

PGM

), you must first decide which line will be in use. Use

the 

LN SWITCH

(25) to toggle from

LN 1

(18) to 

MIC 2

(19) on this channel. Slowly raise the 

CH 1 SLIDE CON-

TROL

(31) 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

(26), 

HIGH

(28),

MID

(29), 

LOW

(30) controls located to the left of the 

CH

1 SLIDE CONTROL

(31).

3.

Channel 2:

To bring this channel in to 

PGM

, you must

first decide which line will be in use. Use the 

LN SWITCH

(32) to toggle from 

PH1/LN 2

(16) to 

LN 3

(17) on this

channel. Slowly raise the 

CH 2 SLIDE CONTROL

(38) 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 

(33), 

HIGH 

(35), 

MID

(36), 

LOW

(37) controls located to the left of the 

CH 2 SLIDE CON-

TROL

(38).

4. 

CHANNEL 3:

To bring this channel in to 

PGM

, you must

first decide which line will be in use. Use the 

LN SWITCH

(39) to toggle from 

PN2/LN4

(13) to 

LN 5 

(14) on this

channel. Slowly raise the 

CH 3 SLIDE CONTROL

(45) 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

(40), 

HIGH

(42), 

MID 

(43), 

LOW

(44) controls located to the left of the 

CH 3 SLIDE CON-

TROL

(45).

5.

CHANNEL 4:

To bring this channel in to 

PGM

, you must

first decide which line will be in use. Use the 

LN SWITCH

(46) to toggle from 

LN 6

(9) to 

MIC 3

(10) on this channel.

Slowly raise the 

CH 4 SLIDE CONTROL

(52) to a comfort-

able level, once you've selected the proper line. You can

further modify the sound output of this channel by adjust-

ing the rotary 

GAIN

(47), 

HIGH

(49), 

MID

(50), 

LOW 

(51)

controls located to the left of the 

CH 4 SLIDE CONTROL

(52).

6. 

CHANNEL 5:

To bring this channel in to 

PGM

, you must

first decide which line will be in use. Use the 

LN SWITCH

(53) to toggle from 

LN 7

(8) to

LN 8

(7) on this channel.

Slowly raise the 

CH 5 SLIDE CONTROL

(59) to a com-

fortable level, once you've selected the proper line. You 

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