OPERATIONS MANUAL
Bedienungsanleltung
Manual de funcionamiento
Manual de fonctionnement
Manual del utente
PDM-24s
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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PHONO/LINE SWITCH (53) enables you to set the (52) input to
Phono or Line. The PHONO/LINE SWITCH (56) enables you to set
the (55) input to Phono or Line. The phono inputs will accept only
turntables with a magnetic cartridge. A GROUND SCREW (58) 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.
Introduction
Congratulations on purchasing the Gemini PDM-24s 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.
6. Headphones can be plugged into the front panel mounted
HEADPHONE (40) jack.
Features
7. The PDM-24s comes with a front panel BNC LIGHT (33) jack. This
jack is for use with a gooseneck light like the Gemini GNL-700.
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4 Stereo Channels
State of the Art Cue Section
3 Phono/Line Convertible, 5 Line, and 2 Mic Inputs
Dual 7 Band Graphic Equalizers
Talkover
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.
Master, Booth and Record outputs
Digital Sampler with 5 Memory Banks
Battery backup to retain samples
1. With the mixer on, listen to the system in idle mode (no signal
present) with the ground applied (the GROUND LIFT SWITCH (59) in
the left position).
Cautions
2. Then turn the power off before moving the GROUND LIFT
SWITCH (59). Lift the ground by moving the GROUND LIFT
SWITCH to the right, 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.
1. All operating instructions should be 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.
CAUTION: DO NOT TERMINATE THE AC GROUND ON THE POWER
MIXER IN ANY WAY. TERMINATION OF THE AC GROUND CAN BE
HAZARDOUS.
In the U.S.A., if you have any problems with this unit,
call 1-732-969-9000 for customer service. Do not return
equipment to your dealer.
3. Do not expose this unit to direct sunlight or to a heat source such as
a radiator or stove.
Operation
4. This unit should be cleaned only with a damp cloth. Avoid solvents or
other cleaning detergents.
1. POWER ON: Once you have made all the equipment connections to
your mixer, press the POWER SWITCH (34). The power will turn on
and the POWER LED (35) will glow RED.
5. When moving this equipment, it should be placed in its original
carton and packaging. This will reduce the risk of damage during
transit.
2. CHANNEL 1: Switch # (9) allows you to select the PHONO 1/LINE 1
(55) or the LINE 2 (54) input. The CHANNEL SLIDE (10) controls the
input level of this channel.
6. DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.
7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY
CONTROLS OR SWITCHES.
3. CHANNEL 2: Switch # (11) allows you to select the PHONO 2/LINE
3 (52) or the LINE 4 (51) input. The CHANNEL SLIDE (12) controls
the input level of this channel.
4. CHANNEL 3: Switch # (13) allows you to select the PHONO 3/LINE
5 (49) or the LINE 6 (48) input. The CHANNEL SLIDE (14) controls
the input level of this channel.
Connections
1. Before plugging in the power cord, make sure that the VOLTAGE
SELECTOR (41) switch is set to the correct voltage.
5. CHANNEL 4: Switch # (15) allows you to select the LINE 7 (47) or
the LINE 8 (46) input. The CHANNEL SLIDE (16) controls the input
level of this channel.
NOTE: This product is double insulated and not intended
to be grounded.
6. CROSSFADER SECTION: The CROSSFADER (18) allows the
mixing of one source into another. The PDM-24s features an
assignable crossfader. The ASSIGN (17, 19) switches allow you to
select which channel will play through each side of the crossfader.
The ASSIGN (17) 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 (19) 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
2. Make sure that the POWER (34) switch is in the off position. The
POWER LED (35) will be off.
3. The PDM-24s is supplied with 3 sets of amp output jacks. The MAIN
OUTPUT (43) jacks are unbalanced and used to connect to your
main amplifier. The REC OUTPUT (45) jacks can be used to connect
the mixer to the record input of your recorder enabling you to record
your mix. The BOOTH OUTPUT (44) jacks allow you to hook up an
additional amplifier.
CROSSFADER (18) 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
4. The MIC 1 (1) input (found on the front panel) accepts a 1/4" or XLR
connector. The MIC 2 (57) input (found on the rear panel) accepts
1/4" connectors. All accept balanced and unbalanced microphones.
5. On the rear panel are 3 stereo PHONO/LINE (49, 52, 55) inputs and
5 stereo LINE (46, 47, 48, 51, 54) inputs. The PHONO/LINE
SWITCH (50) enables you to set the (49) input to Phono or Line. The
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with a special curve designed for scratch mixing. Just purchase one
of these crossfader units from your Gemini dealer and follow these
instructions:
Sampler Operation
GENERAL INFORMATION: The PDM-24s Sampler uses Dynamic RAM
memory and a 12 bit microprocessor controller. The full bandwidth
results in true sound reproduction.
1. Unscrew the outside FADER PLATE SCREWS (B). Do
not touch the INSIDE SCREWS (C).
MEMORY INFORMATION: The PDM-24s comes equipped with five
MEMORY BANKS (31). The two banks marked 2 & 2 are two seconds in
length, the two banks marked 4 & 4 are four seconds in length and the
bank marked 12 is twelve seconds in length. These banks are separate
and can not be linked. You can store a different sample in each bank but
they must be recorded individually and they must be played one at a time.
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.
SAMPLE RECORDING:
1. Put the MODE SELECTOR (30) switch into the WRITE position.
2. Select the source you want to sample from by pressing the
appropriate CUE/SAMPLE ASSIGN (20, 21) button.
3. Select the memory bank you want to record into, by pressing the
proper MEMORY BANK (31) button.
4. The PDM-24s comes equipped with a sampler PITCH (28) control.
To get a perfect sample, set the control to its center position and
record the sample. During playback, raising or lowering the control
will raise or lower the pitch of the sample playback. The center
position will remain as normal pitch.
7. EQUALIZER SECTION: This unit features dual 7 band GRAPHIC
EQUALIZERS (8, 23) to allow you to adjust the sound for any room.
To activate the equalizer, press the EQ BUTTON (36) (the EQ LED
will light). By adjusting any of the 7 left equalizer slide controls (8),
you can cut or boost the tonal characteristics of the sound coming
from the left speaker by ±12 dB. By adjusting any of the 7 right
equalizer slide controls (23), you can 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 (36) again
(the EQ LED will turn off).
HINT: You can record a sample with the PITCH (28) control in any position.
Whatever that position is will become normal sound. If you start to record a sample
with the PITCH (28) control set at minimum (this now becomes your normal pitch),
by increasing the pitch to maximum, the pitch effect will double in speed. Recording
at maximum and lowering to minimum will do exactly the opposite.
5. Tapping the START/STOP (32) button begins the sampling process
(the SAMPLER INDICATOR will illuminate RED). Tapping the
START/STOP (32) button a second time ends the sample (the
SAMPLER INDICATOR will turn off). If you do not tap the START/
STOP (32) button a second time, the sampling process will stop
automatically after 2, 4 or 12 seconds depending on which MEMORY
BANK (31) was selected.
8. OUTPUT CONTROL SECTION: The level of the MAIN OUTPUT (43)
is controlled by the MASTER (25) slide. Activating the MONO (24)
button (the mono LED will light) makes the overall output mono. The
BOOTH (37) control adjusts the level of the BOOTH OUTPUT (44).
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.
SAMPLE PLAYBACK:
1. Put the MODE SELECTOR (30) switch into the SINGLE or REPEAT
NOTE: The REC OUTPUT (43) has no level control. The
level is set by the channel slides of the selected channel.
The tonal qualities can be controlled by the equalizers.
position.
2. Select the memory bank you wish to play by pressing the proper
MEMORY BANK (31) button.
9. 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 (7) controls MIC 1
and MIC 2 and has three settings. When the MIC/TALKOVER
SWITCH (7) is in the bottom position, MIC 1 and MIC 2 and talkover
are off. When the MIC/TALKOVER SWITCH (7) is in the center
position MIC 1 and MIC 2 are on, the MIC INDICATOR (6) will glow,
but talkover is off. When the MIC/TALKOVER SWITCH (7) is in the
top 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 (2) and BASS (3) controls allow you to fully adjust the tone
of MIC 1 and MIC 2. MIC 1 LEVEL (5) controls the level of MIC 1.
The MIC 2 LEVEL (4) controls the level of MIC 2.
3. Tapping the START/STOP (32) button with the MODE SELECTOR
(30) switch in the SINGLE position will cause the sampler to
playback one time (the SAMPLER INDICATOR will illuminate
GREEN). Every push of the START/STOP (32) button will restart the
sample from the beginning. Rapid pressing of the START/STOP (32)
button will cause a stuttering effect. Once the sample has started
playback and the START/STOP (32) button is not pushed a second
time, the sample will play to the end and then stop (the SAMPLER
INDICATOR will turn off).
4. Tapping the START/STOP (32) button with the MODE SELECTOR
(30) switch in the REPEAT position will cause the sample to
continuously play over and over (the SAMPLER INDICATOR will
illuminate GREEN). The START/STOP (32) button will act as an on/
off switch. The first push will start the sample, the second push will
stop it. The SAMPLER LEVEL (27) controls the level of the sample.
10. CUE SECTION: By connecting a set of headphones to the
HEADPHONE (40) jack, you can monitor any or all of the channels.
Press the CUE/SAMPLE ASSIGN (21) buttons for channels 1 - 4 to
select the channel or channels to be monitored and their respective
LED indicators will glow. Press the CUE/SAMPLE ASSIGN (20)
button to monitor MIC 1 and MIC 2. The CUE/SAMPLE ASSIGN (20,
21) buttons are also used to assign samples (see Sampler Operation
for more details). Press the CUE SAMPLER (26) to monitor samples.
Use the CUE LEVEL (39) control to adjust the cue volume without
effecting the overall mix. By moving the CUE PGM PAN (38) control
to the left you will be able to monitor the assigned cue signal. Moving
the control to the right will monitor the PGM (program) output.
ROBO PLAY:
1. With the ROBO PLAY (29) button in the OFF POSITION (the ROBO
PLAY INDICATOR will be OFF) and the MODE SELECTOR (30)
switch in either the SINGLE or REPEAT mode, pressing the START/
STOP (32) button will cause the sample to play along with the
selected source.
11. DISPLAY: The DISPLAY (22) indicates either the MASTER output
left and right levels.
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2. When the ROBO PLAY (29) button is in the ON position (the ROBO
PLAY INDICATOR illuminates RED), starting the sampler mutes the
selected source. When the sample ends, the source automatically
turns back on.
BATTERY BACKUP: The PDM-24s is equipped with battery backup to
retain samples. To activate this feature, a 9 volt battery (not included)
needs to be connected to the BATTERY HOLDER (42) located on the
rear panel. This will enable you to store samples in memory, and when
the unit is unplugged, the battery backup will retain the samples for
future use. If the unit is unplugged with no battery attached, all the
samples will be lost.
LOW BATTERY INDICATOR: A low battery indicator is included with the
PDM-24s. When changing the battery, make sure the unit is plugged in
and the power is ON. Failure to adhere to this will result in lost memory.
The low battery indicator is ON when the selected memory bank LED
blinks. The LED will also blink if no battery is connected to the unit.
Specifications
INPUTS:
DJ Mic....................................................1.5mV 2Kohm balanced
Phono.........................................................................3mV 47Kohm
Line.......................................................................150 mV 27Kohm
OUTPUTS:
Main/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
GENERAL:
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.....................................................19”w x 4”h x 9”d
Weight........................................................................10.17 lbs
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In the U.S.A., if you have any problems with this
unit, call 1-732-969-9000 for customer service. Do
not return 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 the product should be carried out by Gemini Sound
Products Corp. or it’s authorized agents. Gemini Sound Products Corp. cannot accept any liability whatsoever
for any loss or damage caused by service, maintenance or repair 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 011-331-5559-0470 • Fax 011-331-5559-0485
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: 011-44-170-5591-771 • Fax: 011-44-170-5593-533
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. 1999
All Rights Reserved
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