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The 

REC OUTPUT (41) 

(RCA type) jacks can be used to

connect the mixer to the record input of your recorder
enabling you to record your mix.
The 

BOOTH OUTPUT (40) 

(RCA type) jacks allow you to

hook up an additional amplifier.

4. The 

MIC 1 (1)

 input (found on the front panel) accepts XLR &1/4"

connectors.

 

The

 MIC 2 (56)

 input and the 

MIC 3 (55)

 input (found

on the rear panel) accept 1/4" connectors. All accept balanced and
unbalanced microphones.

5. On the rear panel are three (3) stereo 

PHONO/LINE (47, 50, 53)

inputs and 5 stereo

 LINE (44, 45, 46, 49, 52) 

inputs.

The 

PHONO/LINE

 

SWITCH (48)

 enables you to set the 

(47)

input to Phono or Line.
The 

PHONO/LINE

 

SWITCH (51)

 enables you to set the 

(50)

input to Phono or Line.
The 

PHONO/LINE

 

SWITCH (54)

 enables you to set the 

(53)

input to Phono or Line.

The phono inputs will accept only turntables with a magnetic cartridge.

6. A turntable 

GROUND SCREW (57)

 is located on the rear panel.

7. Headphones can be plugged into the front panel mounted

HEADPHONE JACK (36)

 .

8. The 

PS-850i

 

features a front panel 

BNC LIGHT JACK (30)

 . This

jack is for a gooseneck lamp such as the 

Gemini GNL-700

.

9. There are 

LOOP INPUTS (43) 

and 

LOOP OUTPUTS (42)

 located on

the rear panel. If you are using an outboard signal processor, you
can use the 

LOOP OUTPUTS (42)

 to send the signal to the device

and the 

LOOP INPUTS (43)

 to bring the signal back in to the mixer.

The unit comes with jumpers to be used with the loop inputs and
outputs. Keep the jumpers in the unit if you are not using the loop to
prevent interruptions in your music program.

THE GROUND LIFT SWITCH

D

epending on your system configuration, applying the ground
sometimes creates a quieter signal path. Sometimes “lifting” the
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 (58) 

should be 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.

   

   

   

   

   

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

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 (31)

. The power will

turn on and the 

POWER LED (32)

 will “glow” RED.

2.

CHANNEL 1:

 The 

GAIN (8)

HIGH (9)

MID (10)

,

 

and 

LOW (11)

controls allow you to fully adjust the selected source. Switch 

(12)

allows you to select  the 

PHONO 1/LINE 1 (53) 

or the 

LINE 2 (52)

input. 

CHANNEL SLIDE (13)

 controls the input level of this channel.

3.

CHANNEL 2:

 The 

GAIN (8)

HIGH (9)

MID (10)

,

 

and 

LOW (11)

controls allow you to fully adjust the selected source. Switch 

(14)

allows you to select the 

PHONO 2/LINE 3 (50) 

or the 

LINE 4 (49)

input. 

CHANNEL SLIDE

 

(15)

 controls the input level of this channel.

4.

CHANNEL 3:

 The 

GAIN (8)

HIGH (9)

MID (10)

,

 

and 

LOW (11)

K

K

K

K

K

INTRODUCTION

Congratulations on your purchase of the 

 PS-850i

Stereo PreAmp Mixer

. This-state-of-the-art mixer is backed by

a three year warranty, excluding crossfader and channel slides. Prior to
plugging in, we suggest you carefully read these instructions.

FEATURES

4 Stereo Channels

State-of-the-Art Cue Section

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

BPM displays and beat offset indicators.

Cut Feature for Low, Mid and High for Each Channel

Gain, High, Mid and Low Tone Controls for Each Channel

Talkover

Loop

Balanced and Unbalanced Master Outputs

Booth and Record Outputs

Dual Mode Display

CAUTIONS

1. Read all operating instructions 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 all unit
servicing to a qualified 

 Sound Products service

technician.

   

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 heat sources such

as a radiator or stove.

4. This unit should be cleaned with a damp cloth ONLY. Avoid solvents

and other cleaning detergents. Do not use spray cleaner or lubricant
on controls or switches.

5. When moving this equipment, it should be placed in its original carton

and packaging to reduce the risk of damage during transit.

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

CONNECTIONS

1. Before plugging in the power cord, make sure that the 

VOLTAGE

SELECTOR (37) 

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 (31)

 switch is in the OFF position.

The

 POWER LED (32)

 will be OFF.

3. The 

PS-850i

 is supplied with four (4) sets of output jacks.

The

 XLR BALANCED OUTPUT (38)

 jacks are used to

connect to your main amplifier using standard XLR cables.
We recommend using balanced amp outputs if the cables to
your amp are 10 feet or more. 

XLR 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

 MAIN OUTPUT (39) 

(RCA type) jacks are unbalanced

and used to connect to your main amplifier.

)

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Summary of Contents for PS-850i

Page 1: ...TIONS PS 850i 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 ...

Page 2: ...Page2 33 36 30 16 12 PS 850i 31 24 57 14 59 32 34 35 26 27 28 29 25 61 22 63 58 11 10 9 8 18 23 19 21 17 15 23 11 10 9 8 1 2 3 4 5 60 20 6 7 62 13 ...

Page 3: ...Page3 PS 850i ...

Page 4: ...t the selected source Switch 12 allows you to select the PHONO 1 LINE 1 53 or the LINE 2 52 input CHANNEL SLIDE 13 controls the input level of this channel 3 CHANNEL 2 The GAIN 8 HIGH 9 MID 10 and LOW 11 controls allow you to fully adjust the selected source Switch 14 allows you to select the PHONO 2 LINE 3 50 or the LINE 4 49 input CHANNEL SLIDE 15 controls the input level of this channel 4 CHANN...

Page 5: ... 38 39 is controlled by the MASTER 29 slide and BALANCE 28 control Activating the MONO 27 button the mono LED will light makes the overall output mono The BOOTH 26 control adjusts the level of the BOOTH OUTPUT 40 9 TALKOVER The purpose of the talkover is to allow the program playing to be muted so that the mic may be heard above the music The MIC TALKOVER SWITCH 7 controls MIC 1 and MIC 2 and has ...

Page 6: ...ng works best with tracks with tracks with clear and strong beats SPECIFICATIONS INPUTS Phono 1kHz 2mV 47 kΩ Line 100 mV 10 kΩ MIC 1 MIC 2 MIC 3 1 5mV 2 KΩ Balanced OUTPUTS Main Aux 0 dB 1V 400 kΩ Max 20V Peak to Peak Rec 225mV 5 kΩ GENERAL Low Channels 1 4 12dB 32 dB Mid Channels 1 4 12dB 32 dB High Channels 1 4 12dB 32 dB Gain Channels 1 4 0 to 20dB Bass MIC1 MIC2 12dB Treble MIC1 MIC2 12dB Freq...

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