Gemini PS-1000 PRO User Manual

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Introduction

Congratulations on purchasing the Gemini PS-1000 PRO mixer. This
state of the art mixer 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

• State of the Art Cue Section

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

• Cut Feature for Low, Mid and High for each channel

• Gain, High, Mid and Low tone controls for each channel

• Talkover

• Balanced and Unbalanced Master Outputs

• Booth Output

• Master Output Peak Hold LED Meters

• Prefader Input Level Peak Hold LED Meters for each channel

Cautions

1. Always test equipment before rack mounting. Retain a copy of your
sales receipt for warranty purposes.

2. All operating instructions should be read before using this
equipment.

3. 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 U.S.A., if you have any problems with this unit,
call 1-732-738-9003 for customer service. Do not return
equipment to your dealer.

4. Do not expose this unit to direct sunlight or to a heat source such as
a radiator or stove.

5. This unit should be cleaned only with a damp cloth. Avoid solvents
or other cleaning detergents.

6. When moving this equipment, it should be placed in its original carton
and packaging. This will reduce the risk of damage during transit.

7. DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.

8. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY
CONTROLS OR SWITCHES.

Connections

1. Before plugging in the power cord, make sure that the VOLTAGE
SELECTOR (36) switch is set to the correct voltage.

NOTE: This product is double insulated and not intended
to be grounded.

2. Make sure that the POWER (1) switch is in the off position. The
POWER LED (2) will be off.

3. The PS-1000 PRO is supplied with 2 sets of amp output jacks. The
BALANCED OUTPUT AMP (49) jacks are used to connect to your
main amplifier using standard XLR cables. We recommend using the
balanced amp outputs if the cables to your amp are 25 feet or more.
Balanced outputs have three separate conductors, two of which

are signal (positive and negative) and one shield (ground). Pin 1 is
ground (shield). Pin 2 is signal hot (positive). Pin 3 is signal cold
(negative). The OUTPUT AMP (37) jacks are unbalanced and used
to connect to your main amplifier. The OUTPUT BOOTH (38) jacks
allow you to hook up an additional amplifier.

4. The MIC 1 (3) input (found on the front panel) accepts a 1/4" or XLR
connector. The MIC 2 (51) input and the MIC 3 (50) input (found on
the rear panel) accept 1/4" connectors. All accept balanced and
unbalanced microphones.

5. On the rear panel are 1 stereo PHONO/LINE (46) input, 2 stereo
PHONO (42, 44) inputs, and 5 stereo LINE (39, 40, 41, 43, 45)
inputs. The PHONO/LINE SWITCH (48) enables you to set the (46)
input to Phono or Line. The phono inputs will accept only turntables
with a magnetic cartridge. A GROUND SCREW (47) for you to
ground your turntables is located on the rear panel. The stereo line
inputs will accept any line level input such as a CD player, a cassette
player, etc.

6. Headphones can be plugged into the front panel mounted

HEADPHONE (13) jack.

Using the Ground Lift Switch

Depending on your system configuration, sometimes applying the
ground will create a quieter signal path. Sometimes lifting the ground
can eliminate ground loops and hum to create a quieter signal path.

1. With the mixer on, listen to the system in idle mode (no signal
present) with the ground applied (the GROUND LIFT SWITCH (52) in
the bottom position).

2. Then turn the power off before moving the GROUND LIFT
SWITCH (52). Lift the ground by moving the GROUND LIFT SWITCH
to the top position, turn the power back on and listen to determine
which position will provide a signal devoid of background noise and
hum. Keep the GROUND LIFT SWITCH in the ground position if the
noise level remains the same in either position.

CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWER MIXER
IN ANY WA Y. TERMINA TION OF THE AC GROUND CAN BE
HAZARDOUS.

Operation

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

2. CHANNEL 1: The GAIN (14), HIGH (15), MID (16), and LOW (17)
controls allow you to fully adjust the selected source. Switch # (18)
allows you to select the PHONO 1/LINE 1 (46) or the LINE 2 (45)
input. The CHANNEL SLIDE (19) controls the input level of this
channel.

3. CHANNEL 2: The GAIN (14), HIGH (15), MID (16), and LOW (17)
controls allow you to fully adjust the selected source. Switch # (21)
allows you to select the PHONO 2 (44) or the LINE 3 (43) input. The
CHANNEL SLIDE (22) controls the input level of this channel.

4. CHANNEL 3: The GAIN (14), HIGH (15), MID (16), and LOW (17)
controls allow you to fully adjust the selected source. Switch # (23)
allows you to select the PHONO 3 (42) or the LINE 4 (41) input. The
CHANNEL SLIDE (24) controls the input level of this channel.

5. CHANNEL 4: The GAIN (14), HIGH (15), MID (16), and LOW (17)
controls allow you to fully adjust the selected source. Switch # (25)
allows you to select the LINE 5 (40), LINE 6 (39) or the MIC 3 (50)
input. The CHANNEL SLIDE (26) controls the input level of this
channel.

NOTE: There is Low, Mid and High equalization for each
channel with an extremely wide range of adjustment
providing a smoother mix.

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SUGGESTION: You can use the Cut Features on each channel to
remove Low, Mid and/or High to create special effects.

6. CROSSFADER SECTION: The CROSSFADER (28) allows the mixing
of one source into another. The PS-1000 PRO features an
assignable crossfader. The ASSIGN (27, 29) switches allow you to
select which channel will play through each side of the crossfader.
The ASSIGN (27) switch has 5 settings (OFF, 1, 2, 3 or 4) and
allows you to select channel 1, 2, 3 or 4 to play through the left side
of the crossfader. The ASSIGN (29) switch has 5 settings (OFF, 1,
2, 3 or 4) and allows you to select channel 1, 2, 3 or 4 to play
through the right side of the crossfader. With the ASSIGN switch in
the off position, that side of the crossfader will be inactive. The
CROSSFADER (28) in your unit is removable and if the need arises
can be easily replaced. Crossfader units are available in three
varieties. Part # RF-45 (which is identical to the crossfader supplied
with the mixer) has a 45 mm travel from side to side. Part # RF-30 is
available with a 30 mm travel distance. Also available is the PSF-45
with a special curve designed for scratch mixing. Just purchase one
of these crossfader units from your Gemini dealer and follow these
instructions:

1. Unscrew the outside FADER PLA TE SCREWS (B). Do not
touch the INSIDE SCREWS (C).

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

3. Plug the new fader into the cable and place it back in the
mixer.

4. Screw the fader to the mixer.

7. OUTPUT CONTROL SECTION: The level of the AMP OUT (37, 49) is
controlled by the MASTER (34) slide and the BALANCE CONTROL

(33). The BOOTH (35) control adjusts the level of the BOOTH
OUTPUT (38). HINT: The booth OUTPUT is used by some DJs to run

monitor speakers in their DJ booth. You can also use it as a second
ZONE or AMP output. Activating the MONO (32) button (the mono
LED will light) makes the master output mono.

8. TALKOVER SECTION: The purpose of the talkover section is to allow
the program playing to be muted so that the mic can be heard above
the music. The MIC/TALKOVER SWITCH (9) controls MIC 1 and MIC
2 and has three settings. When the MIC/TALKOVER SWITCH (9) is
in the left position, MIC 1 and MIC 2 and talkover are off. When the
MIC/TALKOVER SWITCH (9) is in the center position MIC 1 and MIC
2 are on, the MIC INDICATOR (8) will glow, but talkover is off.
When the MIC/TALKOVER SWITCH (9) is in the right position, MIC 1
and MIC 2 and talkover will be on and the volume of all sources
except the Mic inputs are lowered by 16 dB. The TREBLE (4) and
BASS (5) controls allow you to fully adjust the tone of MIC 1 and MIC

2. MIC 1 LEVEL (7) controls the level of MIC 1. The MIC 2 LEVEL
(6) controls the level of MIC 2.

9. CUE SECTION: By connecting a set of headphones to the
HEADPHONE (13) jack, you can monitor any or all of the channels.
Press the CUE ASSIGN (20) buttons for channels 1 - 4 to select the
channel or channels to be monitored and their respective LED
indicators will glow. Use the CUE LEVEL (10) control to adjust the
cue volume without effecting the overall mix. By rotating the CUE
PGM PAN (12) control to the left you will be able to monitor the
assigned cue signal. Rotating to the right will monitor the PGM
(program) output. Use the CUE SPLIT (11) button to split the signals
from cue and program so that cue will be heard in one earphone and
program will be heard in the other earphone.

10 .DISPLAYS: The PEAK HOLD LED METER (30) indicates the

MASTER OUTPUT (37, 49) left and right channel levels. The
individual channels each have their own PREFADER INPUT LEVEL

PEAK HOLD LED METERS (31) which reflect the GAIN (14), HIGH
(15), MID (16), and LOW (17) rotary control adjustments. The
CHANNNEL SLIDES (19, 22, 24, 26) will not effect the PREFADER
INPUT LEVEL PEAK HOLD LED METERS (31).

Specifications

INPUTS:

Phono.....................................................................................3mV 47Kohm

Line...................................................................................150 mV 27Kohm

Aux...................................................................................150 mV 27Kohm

OUTPUTS:

Amp/Booth..................................................................0 dB 1V 400ohm

Max..............................20V Peak to Peak

Rec.......................................................................................225mV 5Kohm

MIC 1 & MIC 2:

DJ Mic................................................................1.5mV 2Kohm balanced

Bass..................................................................................................± 12dB

High...................................................................................................± 12dB

MIC 3:

DJ Mic................................................................1.5mV 2Kohm balanced

Controls.......................................................................................Channel 4

GENERAL:

Bass (Chnls 1-4)...................................................................+ 12dB/- 32 dB

Mid (Chnls 1-4)......................................................................+ 12dB/- 32 dB

Treble (Chnls 1-4).................................................................+ 12dB/- 32 dB

Gain (Chnls 1-4)..........................................................................0 to -20dB

Frequency Response................................................20Hz - 20KHz +/- 2dB

Distortion............................................................................................0.02%

S/N Ratio...........................................................................better than 80dB

Talkover Attenuation..........................................................................-16dB

Headphone Impedance.....................................................................16ohm

Power Source.........................................................115/230V 50/60Hz 10W

Dimensions.......................................................12.5”w x 3”h x 14”d

Weight....................................................................................10 lbs

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