Gemini Music Mixer PS 540i User Manual

OPERATIONS MANUAL  
PS-540i  
PROFESSIONAL MIXER  
 
PS-540i  
Page 3  
 
located on the rear panel. The stereo line inputs will accept any line  
level input such as a CD player, a cassette player, etc.  
INTRODUCTION  
Congratulations on purchasing the Gemini PS540i mixer. This state of  
the art mixer includes the latest features and is backed by a three year  
limited warranty, excluding crossfader and channel slides. Prior to use,  
we suggest that you carefully read all the instructions.  
The phono inputs will accept only turntables with a magnetic cartridge.  
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6. Headphones can be plugged into the front panel mounted  
HEADPHONE (47) jack.  
FEATURES  
2 Stereo channels  
THE GROUND LIFT SWITCH  
epending on your system configuration, applying the ground  
sometimes creates a quieter signal path. Sometimes “lifting” the  
2 Phono/Line Convertible, 1 Phono, 1 Line and 1 Mic input  
1/4" DJ Mic jack  
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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  
Low, Mid, High and Gain controls on each channel  
Balanced and unbalanced Master Outputs  
Master output control  
ground “applied”. GROUND LIFT SWITCH (13) should be set to the  
left.  
2. Turn power OFF before moving the GROUND LIFT SWITCH.  
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.  
Cue section  
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.  
2. To reduce the risk of electrical shock , do not open the unit. There  
are NO USER REPLACEABLE PARTS INSIDE. Please refer servicing to  
qualified Gemini Sound Products service technicion.  
hCAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWER  
CABLE. TERMINATION OF THE AC GROUND CAN BE HAZARDOUS.  
In the USA: If you experience problems with this unit,  
please call 1 (732) 969-9000 for Gemini Customer Service.  
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OPERATION  
1. POWER ON: Once you have made all the equipment connections  
to your mixer, press the POWER SWITCH (1).  
Do not attempt to return this equipment to your dealer.  
2. CHANNEL 1: The GAIN (48), HIGH (20), MID (21), and LOW (22)  
controls allow you to fully adjust the selected source. Switch (23)  
allows you to select the PHONO 1 (12) or the PHONO 2 LINE 1  
(11) input. CHANNEL SLIDE (24) controls the input level of this  
channel.  
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.  
3. CHANNEL 2: The GAIN (41), HIGH (33), MID (34), and LOW (35)  
controls allow you to fully adjust the selected source. Switch (36)  
allows you to select the PHONO 3/LINE 2 (7) or the LINE 3 (6)  
input. CHANNEL SLIDE (37) controls the input level of this channel.  
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.  
PLEASE NOTE: There is Low, Mid and High equalization for  
each channel with an extremely wide range of adjustment.  
7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY  
CONTROLS OR SWITCHES.  
SUGGESTION: You can use the Cut Features on each channel  
to remove Low, Mid and/or High range to create special effects.  
CONNECTIONS  
1. Before plugging in the power cord, make sure that the VOLTAGE  
SELECTOR (2) switch is set to the correct voltage.  
4. KILLING FREQUENCIES: There are two ways to kill frequencies,  
using the LOW (25, 38) ,MID (26, 39), and HIGH (27, 40) KILL  
SWITCHES. Each Kill Switch has three positions, latch, normal and  
flash. When you move the selected KILL SWITCH to the top LATCH  
(ON) position, the switch will stay there, and the frequency will be  
killed. When you move the selected KILL SWITCH to the center  
position the kill function is not active, and the frequency will not be  
killed. When you move the selected KILL SWITCH to the bottom  
FLASH position and hold it there, the frequency will be killed.  
Releasing the selected KILL SWITCH from the bottom position will  
bring it back to the center position and the frequency will no longer  
be killed.  
NOTE: This product is double insulated  
and is not intended to be grounded.  
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2. Make sure that the POWER (1) switch is in the OFF position.  
3. The PS-540i is supplied with 3 sets of output jacks. The OUTPUT  
AMP (3) jacks are used to connect to your main amplifier. The  
OUTPUT REC (5) jacks can be used to connect the mixer to the  
record input of your recorder enabling you to record your mix.  
The 1/4" jack BALANCED OUTPUT (4) jacks are used to connect to  
your main amplifier using standard 1/4" connector cables. We  
recommend using balanced amp outputs if the cables to your amp  
are 25 feet or more.  
he Crossfader in your unit is removable and, should the  
need arise, can easily be replaced by following these  
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instructions. Note: Gemini replacement Crossfaders are  
4. The DJ MIC (28) input (found on the front panel) accepts a 1/4"  
connector for balanced or unbalanced microphones.  
available in three 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.  
5. On the rear panel are 2 stereo PHONO/LINE (7,11) inputs, 1 stereo  
PHONO (12) input and 1 stereo LINE (6) input. The PHONO/LINE  
SWITCHES (8,10) enable you to set the (7,11) inputs to Phono or  
Line. The phono inputs will accept only turntables with a magnetic  
cartridge. A GROUND SCREW (9) to ground your turntables is  
5. CROSSFADER SECTION: The CROSSFADER (32) allows the mixing  
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of one source into another. The left side of the CROSSFADER (32) is  
CHANNEL 1 and the right side is CHANNEL 2.  
SPECIFICATIONS  
INPUTS:  
1. Unscrew the outside  
FADER PLATE SCREWS (B).  
DJ Mic..............................................................................1.5mV 2 KBalance  
Phono @ 1kHz........................................................................2mV 47 kΩ  
Line.....................................................................................100 mV 10 kΩ  
OUTPUTS:  
- Do not touch INSIDE SCREWS (C).  
2. Carefully remove old Cross-  
fader and unplug CABLE (D).  
3. Plug new Crossfader into  
CABLE (D) and place back into mixer.  
Amp..........................................................................0 dB 1V 400 Ω  
Max...............................................................................18V Peak-to-Peak  
GENERAL:  
4. Screw Crossfader to mixer with  
FADER PLATE SCREWS (B).  
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Low (Channels 1-2)...........................................................+ 12dB/- 32 dB  
Mid (Channels 1-2)..............................................................+ 12dB/- 32 dB  
High (Channels 1-2).............................................................+ 12dB/- 32 dB  
Gain (Channels 1-2).......................................................................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.............................10”Wx 10.24”H x 3.3”D(254 x 260 x 84 mm)  
Weight.....................................................................................6.3 lbs(3 kg)  
The CROSSFADER CURVE BUTTON (19) allows you to adjust the kind  
of curve the crossfader has .Depress the crossfader curve button to  
make the curve steep and cutting (perfect for scratching).Release the  
crossfader curve button to make the curve gradual and gentle. The  
CROSSFADER REVERSE SWITCH (31) allows you to reverse the  
crossfader so that CHANNEL 2 is controlled by the left side of the  
crossfader and CHANNEL 1 is controlled by the right side of the  
crossfader.  
NOTE: When the CROSSFADER REVERSE SWITCH (31) is  
activated (moved to the right), only the crossfader  
reverses. The Channel Slides, Gain, Kill Switches and  
tonal controls do not reverse.  
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6. PUNCH IN: The PUNCH IN BUTTONS (18,46) allow you to add a  
channels signal to the mix when the crossfader is set to the opposite  
channel.  
7. OUTPUT CONTROL SECTION: The level of the MASTER OUTPUT (3) is  
controlled by the MASTER (45) control.  
NOTE: The RECORD OUT (5) has no level control. The  
level is set by the channel slides and the gain controls  
of the selected channel. The tonal qualities are set by  
the low, mid and high controls of that same channel.  
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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 (14) switch has three  
settings. When the MIC/TALKOVER (14) switch is in the left  
position, the mic and talkover are both off . When the MIC/  
TALKOVER (14) switch is in the center position the mic is on, the  
MIC INDICATOR (15) will glow, but talkover is off. When the MIC/  
TALKOVER (14) switch is in the right position. The mic and talkover  
will be on and the volume of all sources except the Mic input are  
lowered by 16 dB. MIC LEVEL (17) controls the level of the MIC.  
The MIC EQ (16) control allows you to fully adjust the tone of the  
MIC.  
9. CUE SECTION: By connecting a set of headphones to the  
HEADPHONE (47) jack, you can monitor either channel or both  
together. Move the CUE SWITCH (42) to the left to monitor CHANNEL  
1. Move the CUE SWITCH (42) to the right to monitor CHANNEL 2.  
By rotating the CUE PGM PAN (43) 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 LEVEL (44)  
control to adjust the headphone volume without effecting the overall  
mix.  
10. DISPLAY: The peak hold, dual function DISPLAY (29) indicates  
either the MASTER output left and right levels or the channel 1 and  
channel 2 levels. You can choose the option you want by pressing  
the DISPLAY (30) button.  
NOTE: When the DISPLAY (29) is in the channel 1/channel 2  
display mode, by adjusting the individual channel gain and  
tone controls, you can increase or decrease the signal to  
match the other channel’s signal. The channel slides and  
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crossfader have no effect on the display readings.  
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In the USA: If you experience problems with this unit,  
call 1 (732) 969-9000 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 • 8 Germak Drive, Carteret, NJ 07008 • USA  
Tel: (732) 969-9000 • Fax: (732) 969-9090  
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. • Mino, 112, Nave 1, 08223 Terrassa, Barcelona, Spain  
Tel: 011-34-93-736-34-00 • Fax: 011-34-93-736-34-01  
© Gemini Sound Products Corp. 2001 All Rights Reserved  
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