Gemini 2400, 1800 Introduction, Features, Connections, Using the Ground Lift Switch, Operation

INTRODUCTION:

Congratulations on your purchase of the Gemini PMX-1400,1800or 2400 mixer. This state-of-the-art unit is backed by a three year warranty, excluding crossfader and channel slides. Prior to use, we suggest that you carefully read all the instructions.

FEATURES:

•4 Stereo Channels

•Talkover

•State-of-the-Art Cue Section

•Dual 7 Band Graphic Equalizers

•Booth and Record outputs

•Balanced and Unbalanced Master Outputs

•3 Phono/Line Convertible, 5 Line, and 2 Mic Inputs

PMX-1800 :		PMX-2400 :
•	6 sound effects	•	Digital Sampler/5 Memory Banks
•	Echo section	•	Battery Backup Safeguards Samples

CAUTIONS:

1.All operating instructions should be carefully read before using this equipment.

2.To reduce the risk of electrical shock, do not open the unit.

THERE ARE NO USER REPLACEABLE PARTS INSIDE. Please refer servicing to a qualified service technician.

In the USA: If you experience problems with this unit, please call 1 (732) 738-9003 for Gemini Customer Service. 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 MOISTURE.

7.DO NOT USE SPRAY CLEANER OR LUBRICANT ON 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.

NOTE: THIS PRODUCT IS DOUBLE INSULATED AND IS NOT INTENDED TO BE GROUNDED.

2.Make sure that the POWER (2) switch is in the OFF position. The POWER LED (3) display will be off.

3.The PMX-1400, PMX 1800, and PMX 2400 are supplied with 4 sets of

output jacks:

•The BALANCED MASTER OUTPUT (4) jacks 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 AMP OUTPUT (5) jacks also connect to the main amplifier.

•The BOOTH OUTPUT (6) jacks allow the connection of an additional amplifier.

•The REC OUTPUT (7) jacks can be used to connect the mixer to the record input of your recording unit, thus enabling you to record your mix.

4.The MIC 1 (19) input (located on the front panel) accepts an XLR connector. The MIC 2 (20) input (on the rear panel) accepts 1/4" connectors. Both accept balanced and unbalanced microphones.

5.On the rear panel are 3 stereo PHONO/LINE (11, 14, 17) inputs and 5

stereo LINE (8, 9, 10, 13, 16) inputs:

•PHONO/LINE SWITCH (18) enables you to set the (17) input to Phono or Line.

•PHONO/LINE SWITCH (15) enables you to set the (14) input to Phono or Line.

•PHONO/LINE SWITCH (12) enables you to set the (11) input to Phono or Line.

6.Attach phono ground lines to the GROUND THUMB SCREW (21).

7.Headphones may be plugged into the front panel mounted HEADPHONE (22) jack.

8.The PMX-1400, 1800, & 2400 comes with a front panel BNC LIGHT (23) jack for use with a (not provided) gooseneck light such as the Gemini GNL-700.

USING THE GROUND LIFT SWITCH:

Depending on your system configuration, application of the ground will sometimes create a quieter signal path. Lifting the ground occasionally

eliminates ground loops and “hum” to create a quieter signal.

1.With the mixer ON, listen to the system in “idle” mode (no signal present) and with the ground “applied” and the GROUND LIFT SWITCH (24) in the LEFT position.

2.Turn the power OFF before moving the GROUND LIFT SWITCH (24). “Lift” the ground by moving the GROUND LIFT SWITCH (24) to the RIGHT, turn the power back ON and listen to determine which position provides a signal devoid of background noise and hum. Keep the GROUND LIFT SWITCH (24) in the “ground” position if the noise level remains the same in either position.

CAUTION: DO NOT TERMINATE THE AC GROUND ON THE MIXER CABLE. TERMINATION OF THE AC GROUND CAN BE HAZARDOUS!

OPERATION:

1.POWER: Once you have made all the equipment connections to your mixer, press the POWER (2) switch. The power will turn on and the POWER LED (3) will glow RED.

2.CHANNEL 1: Switch (25) allows you to select PHONO 1/LINE 1 (17) or the LINE 2 (16) input. CHANNEL SLIDE (26) controls the input level of this channel.

3.CHANNEL 2: Switch (27) allows you to select PHONO 2/LINE 3 (14) or the LINE 4 (13) input. CHANNEL SLIDE (28) controls the input level of this channel.

4.CHANNEL 3: Switch (29) allows you to select PHONO 3/LINE 5 (11) or the LINE 6 (10) input. CHANNEL SLIDE (30) controls the input level of this channel.

5.CHANNEL 4: Switch (31) allows you to select either the LINE 7 (9) or LINE 8 (8) input. CHANNEL SLIDE (32) controls the input level of this channel.

6.CROSSFADER: The CROSSFADER (33) allows the mixing of one source into another. The mixer features an assignable crossfader. The ASSIGN (34, 35) switches allow you to select which channel will play through each side of the crossfader.

7.ASSIGN (34) switch has five settings (OFF, 1, 2, 3 and 4) and allows you to direct Channel 1, 2, 3 or 4 through the LEFT side of the crossfader. ASSIGN (35) switch also has five settings (OFF, 1, 2, 3 and 4) and allows you to direct Channel 1, 2, 3 or 4 through the RIGHT side of the crossfader. Placing either ASSIGN switch in the OFF position inactivates that side of the crossfader.

CROSSFADER SECTION: The CROSSFADER (33) allows the mixing of one source into another. The left side of the CROSSFADER (33) is CHANNEL 1 and the right side is CHANNEL 2. The CROSSFADER (33) in your unit is removable and if the need arises can be easily replaced. Your Gemini mixer comes with an RG-45 PRO (RAILGLIDE™) Dual- Rail Crossfader. RAIL GLIDE™ crossfaders have internal dual stainless steel rails that allow the slider to ride smoothly and accurately from end to end. Also available is our CF-45 PRO (PROGLIDE™) Dual-Rail Crossfader. This unique crossfader features, state of the art conductive plastic technology, for unlimited useage. Another crossfader we have available is the PSF-45 (PRO SCRATCH™) crossfader with a special curve designed for scratch mixing. Just purchase one from your Gemini dealer and follow the instructions:

•Unscrew the FADER PLATE SCREWS (B).

•Do not touch the INSIDE SCREWS (C).

•Carefully lift the fader and unplug the CABLE (D).

•Plug the new fader into CABLE (D) and place it back in the mixer.

•Screw the fader to the mixer with the FADER PLATE SCREWS (B).

8.EQUALIZER: This unit features dual 7 band GRAPHIC EQUALIZERS (36, 37) that allow you to adjust the sound to fit any room. Activate the equalizer by pressing EQ BUTTON (38) (EQ LED is illuminated). By adjusting any of the 7 LEFT (36) equalizer slide controls, you can cut or boost the tonal characteristics of the sound coming from the LEFT speaker by ±12 dB. Adjusting any of the 7 RIGHT (37) equalizer slide controls allows you to cut or boost the tonal characteristics of the sound coming from the RIGHT speaker by ±12 dB. Deactivate the equalizer by pressing the EQ BUTTON (38) again (EQ LED is OFF).

9.OUTPUT CONTROL: The level of the AMP OUTPUT (5) is controlled by the MASTER (39) slide. Activating the MONO (40) button (MONO LED is illuminated) converts the overall output to mono. The BOOTH (41) control adjusts the level of the BOOTH OUTPUT (6).

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