OPERATORS MANUAL
BEDIENUNGSHANDBUCH
MANUAL DEL OPERADOR
MANUEL D’INSTRUCTIONS
PS-650i
PROFESSIONAL STEREO PREAMP MIXER
Professionneller Stereo Vorverstärkermischpult
Mezclador-preamplificador estereofónico para el profesional
Mélangeur-préamplificateur stéréophonique pour le professionnel
Miscelatore-preamplificatore stereofonico per il professionale
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42
PS-650i
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additional amplifier.
INTRODUCTION
Congratulations on purchasing a Gemini Platinum Series model PS-650i
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.
5. On the rear panel are 2 stereo PHONO (32,34) inputs, 2 stereo LINE
(31,33) inputs and 1 stereo PHONO/LINE (36) input. The PHONO/
LINE (35) switch enables you to set the (36) input to Phono or Line.
The phono inputs will accept only turntables with a magnetic
cartridge. A GROUND (37) screw 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.
FEATURES
6. Headphones can be plugged into the front panel mounted
HEADPHONE (4) jack.
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Cut Feature for Low, Mid and High of each channel
BPM Display
THE GROUND LIFT SWITCH
epending on your system configuration, applying the ground
sometimes creates a quieter signal path. Sometimes “lifting” the
3 Stereo channels (3 Phono, 3 Line and 1 Mic)
Neutrik ComBo XLR/Jack DJ Mic.
Low, Mid, High and Gain controls on each channel
Beat Offset Indicators
D
ground eliminates loops and hum to create a quieter signal path.
1. Listen to the system with the unit ON, without music, and with the
ground “applied”. GROUND LIFT SWITCH (41) should be to the left.
Master, Booth and Record outputs
2. Turn power OFF before moving the GROUND LIFT SWITCH.
Dual mode display (Left & Right output or Channel 2 and Channel 3)
Push button cueing with Cue/Program pan control
3. Now, “lift” the ground by moving the GROUND LIFT SWITCH to the
right. Turn the power back ON and listen to determine which
position provides a signal free of background noise and hum.
CAUTIONS
1. All operating instructions should be read before using this
equipment.
Note: Keep GROUND LIFT in the ground “applied” or left position if
noise level remains the same in either position.
CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWER
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 Gemini Sound Products service technician.
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CABLE. TERMINATION 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 RED.
In the USA: if you experience problems with this unit, please
call 1 (732) 969-9000 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.
2. CHANNEL 1: The GAIN (6), HIGH (7), MID (8), and LOW (9) controls
allow you to fully adjust the selected source. Switch (10) allows
you to select either the mic or the PHONO/LINE (36) input. The
CHANNEL SLIDE (13) controls the output level of this channel.
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.
3. MAIN CHANNEL SECTION: To assign an input source to a channel,
first set the PHONO/LINE (11,12) switches to their appropriate
positions. To make the proper adjustments to your music, set the
GAIN (6), HIGH (7), MID (8) and LOW (9) controls, and position the
CHANNEL SLIDE (14,15).
6. DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY
CONTROLS OR SWITCHES.
PLEASE NOTE: There is Low, Mid and High equalization for
each channel with an extremely wide range of
adjustment.
CONNECTIONS
1. Before plugging in the power cord, make sure that the VOLTAGE
SELECTOR (30) switch is set to the correct voltage.
SUGGESTION: You can use the Cut Features on each
channel to remove Low, Mid and/or High range to create
special effects.
NOTE: This product is double insulated and is not
intended to be grounded.
he Crossfader in your unit is removable, and should the need
arise, can easily be replaced by following these instructions.
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2. Make sure that the POWER (1) switch is in the off position. The
T
Note: Gemini replacement Crossfaders are available in three
POWER LED (2) will be off.
varieties: the RG-45 PRO (RAIL GLIDETM)Dual-Rail Crossfader; the RF-
45, which has a 45mm travel from side-to-side; and the PSF-45, which
features a special “curve” designed for scratch mixing.
3. The PS-650i is supplied with four (4) sets of output jacks.
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The 1/4" BALANCED OUTPUT (29) jacks are used to connect to
your main amplifier using standard balanced cables. We recommend
using balanced amp outputs if the cables to your amp are 10 feet or
more.
1. Unscrew the outside
FADER PLATE SCREWS (B).
- Do not touch INSIDE SCREWS (C).
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The MAIN OUTPUT (38) (RCA type) jacks are unbalanced and used
to connect to your main amplifier.
2. Carefully remove old Cross-
fader and unplug CABLE (D).
The REC OUTPUT (40) (RCA type) jacks can be used to connect the
mixer to the record input of your recorder enabling you to record
your mix.
3. Plug new Crossfader into
CABLE (D) and place back into mixer.
4. Screw Crossfader to mixer with
FADER PLATE SCREWS (B).
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The BOOTH OUTPUT (39) (RCA type) jacks allow you to hook up an
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NOTE: When the DISPLAY (28) is in the channel 2/channel
3 display mode, by adjusting the indivldual channel gain
and tone controls, you can increase or decrease the
signal to match the other channel’s signal. The channel
slides and crossfader have no effect on the display
readings.
✦Your Gemini mixer comes with an RG-45 PRO (RAIL
GLIDE™) 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.
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4. CROSSFADER SECTION: The CROSSFADER (26) allows the mixing
of one source into another. The left side of the CROSSFADER (26) is
channel 2 and the right side is channel 3.
11. The CROSSFADER CURVE SWITCH (42) allows you to adjust the
kind of curve the crossfader has, Move switch to the “sharp” position to
make the curve steep and cutting (perfect for scratching ). Move switch
to the “gradual” position to make the curve gradual and gentle. The
CROSSFADER REVERSE SWITCH (43) allows you to reverse the
crossfader so that CHANNEL 3 is controlled by the left side of the
crossfader and CHANNEL 2 is controlled by the right side of the
crossfader.
5. BPM DISPLAY: There are BPM DISPLAYS(23,24) for Channel 2 and
Channel 3. They update approximately every 2.5 seconds and
digitally display the Beats Per Minute allowing you to match the beats
visually. BPM DISPLAY(23) reflects the Beats Per Minute of Channel
2, and BPM DISPLAY(24) reflects the Beats Per Minute of Channel 3.
NOTE: A [- -]reading will appear on the BPM DISPLAY if
the track has unclear beats. The [- -]reading will also
appear if there is no signal present.
NOTE: When the CROSSFADER REVERSE SWITCH (32) is
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activated, only the crossfader reverses. The Channel
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Slides, Gain, and Tonal controls do not reverse.
6. The BEAT OFFSET INDICATORS (25) light when the tracks of
Channel 2 and Channel 3 are within 11 BPMs of each other and
display how aligned the beats for Channel 2 and Channel 3 are.
When the RED LEDs light, the beats are not aligned. When the
YELLOW LEDs light, the beats are almost aligned. When the GREEN
LED lights, the beats are aligned perfectly.
NOTE: If the difference between the two channel’s
beats exceed 11 BPM, the BEAT OFFSET INDICATORS will
not light.
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SUGGESTION: You can use the BPM DISPLAYS to determine
which tracks have similar or the same Beats Per Minute. When
mixing two tracks with similar Beats Per Minute, you can use
one source’s pitch control to align the Beats Per Minute with the
other source’s BPM. The BPM DISPLAYS and the BEAT OFFSET
INDICATORS update every 2.5 seconds and will reflect the
change in BPM and indicate when the beats are aligned.
NOTE: Beat mixing is a skill that requires practice. Not
every track has a strong beat, and beat mixing works
best with tracks with clear and strong beats.
7. OUTPUT CONTROL SECTION: The level of the AMP OUT (38) is
controlled by the MASTER (18) control. The BALANCE (17) control
will allow the Amp Out signal to be balanced between the left and
right speakers. The BOOTH (16) control adjusts the level of the
BOOTH OUTPUT (39).
HINT: BOOTH OUTPUT (39) is used by some DJs to run monitor
speakers in the DJ Booth. You can also use it as a second
ZONE or AMP output.
NOTE: The RECORD OUT (40) has no level control. The level is
set by the channel slides and the gain controls of the selected
channel. Tonal qualities are set by the low, mid and high
controls of that same channel.
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. When the TALKOVER (19) button is pushed, the
TALKOVER INDICATOR (28) will glow and the volume of all sources
except the Mic or whatever is connected to the PHONO/LINE (36)
input are reduced by 16 dB.
9. CUE SECTION: By connecting a set of headphones to the
HEADPHONE (4) jack, you can monitor any or all of the channels.
Select the correct CUE (21) button or buttons and their respective
CUE LED (5) indicators will glow. Use the CUE LEVEL (20) control to
adjust the headphone volume without effecting the overall mix. By
sliding the CUE PGM PAN (22) control to the left you will be able to
monitor the assigned cue signal. Sliding to the right will monitor the
PGM (program) output.
10. DISPLAY: The peak hold, dual function DISPLAY(27) indicates either
the MASTER(38) output left and right levels or the channel 2 and
channel 3 levels. You can choose the option you want by pressing
the DISPLAY(28) button.
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SPECIFICATIONS
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INPUTS:
DJ Mic.......................................................1.5mV 2 kΩ unbalanced
Phono @ 1 kHz..........................................................................2 mV 47 kΩ
Line...............................................................................100 mV 27 kΩ
OUTPUTS:
Amp/Booth....................................................................0 dB 775mV 400Ω
Max...............................................................................24V Peak-to-Peak
Rec..................................................................................225mV 5 kΩ
GENERAL:
Bass .....................................................................+ 12dB/- 32 dB
Mid ..........................................................................+ 12dB/- 32 dB
Treble ..................................................................+ 12dB/- 32 dB
Gain (Mic).......................................................................0 to -40dB
Gain (Chnls 1-3).......................................................................0 to -20dB
Frequency Response............................................20Hz - 20kHz +/- 2dB
Distortion..............................................................................less than 0.02%
S/N Ratio..........................................................................better than 80dB
Talkover Attenuation........................................................................16dB
Power Source...................................................115/230V 50/60Hz 20W
Dimensions................................................254mmW x 305mmD x 112mmH
10”W x 12”D x 4 7/16”H
Weight........................................................................................6.5 lbs(3 Kg)
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In the USA: If you experience problems with this unit,
call 1-732-738-9003 for Gemini Customer Service.
Do not attempt to return this equipment to your dealer.
Parts of the design of this product may be protected by worldwide patents.
Information in this manual is subject to change without notice and does
not represent a commitment on the part of the vendor. Gemini Sound
Products Corp. shall not be liable for any loss or damage whatsoever
arising from the use of information or any error contained in this manual.
No part of this manual may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, electrical, mechanical,
optical, chemical, including photocopying and recording, for any purpose
without the express written permission of Gemini Sound Products Corp.
It is recommended that all maintenance and service on this product is
performed by Gemini Sound Products Corp. or its authorized agents.
Gemini Sound Products Corp. will not accept liability for loss or damage
caused by maintenance or repair performed by unauthorized personnel.
Worldwide Headquarters • 120 Clover Place, Edison, NJ 08837 • USA
Tel: (732) 738-9003 • Fax: (732) 738-9006
France • G.S.L. France • 11, Avenue Leon Harmel, Z.I. Antony, 92160 Antony, France
Tel: + 33 (0) 1 55 59 04 70 • Fax: + 33 (0) 1 55 59 04 80
Germany • Gemini Sound Products GmbH • Ottostrasse 6, 85757 Karlsfeld, Germany
Tel: 08131 - 39171-0 • Fax: 08131 - 39171-9
UK • Gemini Sound Products • Unit C4 Hazleton Industrial Estate, Waterlooville, UK P08 9JU
Tel: 087 087 00880 • Fax: 087 087 00990
Spain • Gemini Sound Products S.A. • Rosello, 516, Barcelona, Spain, 08026
Tel: 349-3435-0814 • Fax: 3493-347-6961
© Gemini Sound Products Corp. 2002
All Rights Reserved
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