Inter-m PP-9213 User manual

PP-9213 Pre Amplifier
TRIM
-60-16
HI
MID
LOW
-12 +12
-12 +12
-12 +12
SIG PEAK
CH1
MID
+12-12
LOW
+12
+12
HI
-12
-12
-60-16
TRIM
PEAKSIG
CH2 CH3
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH4
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH5
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH6
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH7
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH8
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
CH9
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
PRIORITY1
PRIORITY2
AUX2
AUX1 HI
HI-MID
LOW
LOW-MID
-12
-12
-12
+12
+12
+12
SUB2
SUB1
PEAK
MASTER OUTPUTS
MASTER
INPUTS
+12-12
6
0
0
6
0
0
0
0
0
00
00
00
00
00
00
10
OFF
ON
POWER
* Rack mount products in the Western Hemisphere(North America, South America,
and the Caribbean) do not have handles installed due to customer preference.
PP-9213_E(215.9*279.4) 05.12.13 6:53 PM 페이지2

Contents
Contents
1. Unpacking and Installation.....................................................................................................1
2. Features ................................................................................................................................2
3. Front Panel Controls...............................................................................................................3
4. Rear Panel Controls ...............................................................................................................5
5. Connections...........................................................................................................................7
6. Block Diagram.......................................................................................................................8
7. Specifications.........................................................................................................................9
OFFICE :
653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com
E-mail : [email protected]

1
PP-9213
AUDIO PRE AMPLIFIER
Unpacking and Installation
Unpacking and Installation
Although it is neither complicated to install nor difficult to operate your Pre Amplifier, a few minutes of your
time is required to read this manual for a properly wired installation and becoming familiar with its many
features and how to use them.
Please take a great care in unpacking your set and do not discard the carton and other packing materials.
They may be needed when moving your set and are required if it ever becomes necessary to return your set
for service. Never place the unit near radiators, in front of heating vents, excessive humid or dusty location
to avoid early damage and for your years of quality use.
Connect your complementary components as illustrated in the following page.
Do not install this equipment in a confined space such as a book case or similar unit.
The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases,
shall be placed on the apparatus.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of suf-
ficient magnitude to constitute a risk of electric
shock to persons.
This symbol is intended to alert the user to the
presence of important operation and mainte-
nance (servicing) instructions in the literature
accompanying the appliance.
Caution: To prevent electric shock do not use this (polarized) plug
with an extension cord, receptacle or other outlet unless
the blades can be fully inserted to prevent blade expo-
sure.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
fiche polarisée avec un prolongateur, une prise de
courant on une autre sortie de courant, sauf si les
lames peuvent étre insérées à fond sans en laisser
aucune partie à découvert.

2PP-9213
AUDIO PRE AMPLIFIER
Features
Features
- Low, Mid, High and Trim controls on each channel.
- 2 Channel Aux inputs.
- 2 Auto Ducking Priority inputs.
- 4 Band (Low, Low-mid, Hi-mid and High) EQ on master channel.
- 1 Master output, 2 Sub output and 1 Recording output.
- 2 Ducking channels. (channel 1, 2)
- Signal and Peak indicators on each channel.
- 2 Channel Phantom powers.
- DC power operation.

3
PP-9213
AUDIO PRE AMPLIFIER
Front Panel Controls
Front Panel Controls
1. TRIM CONTROL
This control adjusts the input sensitivity of each channel from -16dB to -60dB for microphone source,
and from +24dB to -20dB for line source.
For the best performance, adjust this TRIM control so that PEAK indicator LED lights occasionally.
2. SIGNAL INDICATOR
LED indicates that a signal is present at the channel input.
3. PEAK INDICATOR
This warning light indicates an overload situation. This indicator light in red when the post EQ, or pre
fader signal of the corresponding channel’s input reaches a level 3dB below the clipping level.
4. CHANNEL FADER
This is the main level control for each input channel. It determines level of the signal sent from the corre-
sponding input channel to the master mixing buss. Faders of channels not in use should be pulled down.
5. AUX CONTROLS
These controls adjust the level of the Aux signals that are received at the rear panel AUX 1, 2.
6. MASTER PEAK INDICATOR
This warning light indicates an overload situation. This indicator light in red when the post fader signal
of the corresponding Master output reaches a level 3dB below the clipping level.
7. MASTER OUTPUT FADER
The master faders independently adjust level of the master mixing buss signals appearing at the MASTER
OUT connectors.
TRIM-60-16
HI
MID
LOW
-12 +12
-12 +12
-12 +12
SIG PEAKCH1
MID
+12-12 LOW
+12
+12
HI
-12
-12
-60-16TRIM
PEAKSIG CH2 CH3
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH4
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH5
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH6
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH7
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH8
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG CH9
MID
+12
LOW
-12
+12
+12
-12
-12
HI
-60
TRIM
-16
PEAKSIG
PRIORITY1
PRIORITY2
AUX2
AUX1 HI
HI-MID
LOW
LOW-MID
-12
-12
-12
+12
+12
+12
SUB2
SUB1
PEAK
MASTER OUTPUTS
MASTER
INPUTS
+12-12
6
0
0
6
0
0
0
0
0
10
OFF
ON
PRE AMPLIFIER PP 9213
POWER
12 3 4 5 6 7
891011 12

4PP-9213
AUDIO PRE AMPLIFIER
8. EQ CONTROLS OF INPUT CHANNEL
Each input channel equalizer is divided into three band. This level is adjustable over a wide range of
boost and cut.
HIGH: ±12dB at 10kHz
MID: ±12dB at 1kHz
LOW: ±12dB at 100Hz
9. PRIORITY CONTROLS
These controls adjust the level of the Priority signals that are received at the rear panel PRIORITY 1, 2.
10. EQ CONTROLS OF MASTER
Master output channel equalizer is divided into four band. This level is adjustable over a wide range of
boost and cut.
HIGH: ±12dB at 10kHz
HI-MID: ±12dB at 2kHz
LOW-MID: ±12dB at 400Hz
LOW: ±12db at 80Hz
11. SUB OUTPUT CONTROLS
This control adjusts the level of the signal output from the SUB OUT.
12. POWER SWITCH
Pressing this switches to on the power is supplied to this unit.

5
PP-9213
AUDIO PRE AMPLIFIER
Rear Panel Controls
Rear Panel Controls
1. MASTER OUTPUT
This is XLR type connector used to connect a power amplifier. (Pin assignment– 1: GND, 2: HOT, 3:
COLD)
2. SUB OUTPUTS
These are phone type connectors used to connect another amplifier.
3. PRIORITY INPUT JACKS
This inputs are unbalanced line level input with phone jacks. All other channels are controlled by the sig-
nal of priority inputs with Automatic ducking operation.
4. AUX INPUT JACKS
This inputs are unbalanced line level input with phone jacks.
5. MIC IN
These XLR type connectors be connected with microphone. (Pin assignment 1: GND, 2: HOT, 3: COLD)
Impedance range is 50Ωto 600Ω.
Turn the phantom power switch ON to apply +18V DC to pin 2 and 3 of these connectors. (MIC1 and
MIC2)
6. AC POWER ENTRY MODULE
An inlet socket to connect the power cable and fuse holder. A correct capacity of fuse should be applied.
Please make sure the value of fuse before replacing.
7. REC OUTPUT
This phone jack is unbalanced outputs for use with tape recorder.
SN
DUCK P.PWR
CH1CH2
DUCK P.PWR
CH3CH4CH5CH6CH7CH8CH9
LINE IN
MIC IN
L
RR
L
R
L
2
1
AUX
1
2
PRIORITY
+- DC INPUT
24V
INSERTREC OUT
MASTER
2
1
SUB OUT
OUTPUT INPUTINPUT
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
T125mAL/
FUSE
10W
230V 50Hz
INPUT
~AC
250V
OC03OC03
12 34 5
678 9 10 11 12 13

6PP-9213
AUDIO PRE AMPLIFIER
8. INSERT JACK
Whenever a plug is inserted into INSERT jack, the master mixing buss is disconnected from the Master
output stage.
The Master output is direct connected to INSERT jack.
9. DC POWER TERMINAL
A terminal to connect the DC24V output terminal of power distributor unit. (PD-9211 or PD-9359)
10. STEREO LINE IN
These are Unbalanced Stereo input connector which can be connected line level equipment.
11. MONO LINE IN
These are balanced input connector which can be connected line level equipment.
12. DUCKING SWITCH
When the ducking is on, the set will automatically lower the gain of other channel inputs when someone
is speaking into one of the microphones.
13. PHANTOM POWER SWITCH
This switch turns on and off the phantom power supply. The phantom power supply provides power for
condenser type microphone through the microphone cable.
When switched on, it produces 18 volts DC (with 6.8kΩsource impedance) at pins 2 and 3 on CH1,
CH2 microphone input connectors. Pin 1 (the shield conductor) provides the ground return path.
This will power standard condenser microphones and will not affect most dynamic microphones. When
switched on or off, the voltage will ramp slowly up or down; it takes a few seconds to reach full level.
This prevents unwanted transients from reaching the microphone inputs.

7
PP-9213
AUDIO PRE AMPLIFIER
Connections
Connections
MICROPHONE
CASSETTE DECK
CD PLAYER
TUNER
KEY BOARD
MICROPHONE
DISTRIBUTOR
POWER AMPLIFIER
EMERGENCY PANEL
FIRE
SPEAKERS
SN
DUCK P.PWR
CH1CH2
DUCK P.PWR
CH3CH4CH5CH6CH7CH8CH9
LINE IN
MIC IN
L
RR
L
R
L
2
1
AUX
1
2
PRIORITY
+- DC INPUT
24V
INSERTREC OUT
MASTER
2
1
SUB OUT
OUTPUT INPUTINPUT
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
LINE IN
MIC IN
T125mAL/
FUSE
10W
230V 50Hz
INPUT
~AC
250V
OC03OC03

20 PP-9213
AUDIO PRE AMPLIFIER
8PP-9213
AUDIO PRE AMPLIFIER
Block Diagram
Block Diagram

9
PP-9213
AUDIO PRE AMPLIFIER
Specifications
Specifications ..........................................................0dB=0.775Vrms
- ELECTRICAL
OUTPUTS
Master Output............................................................................................+4dBm/600Ω, BALANCED
Sub 1, 2 Output ....................................................................................+4dBm/600Ω, UNBALANCED
Rec Output ...........................................................................................–10dBv/10kΩ, UNBALANCED
INPUTS
Mic (CH1~CH9) .......................................................................................–60dBm/600Ω, BALANCED
Line (CH1~CH6) .......................................................................................–20dBm/47kΩ, BALANCED
Line (CH7~CH9) ..................................................................................–20dBm/47kΩ, UNBALANCED
Aux 1, 2 .............................................................................................–10dBm/20kΩ, UNBALANCED
Priority 1, 2.............................................................................................0dBm/20kΩ, UNBALANCED
Insert ......................................................................................................0dBm/20kΩ, UNBALANCED
T.H.D ..............................................................................................................................Less than 0.3%
Frequency Response ........................................................................................30Hz~20kHz (+1d, –3dB)
INPUT Channel EQ
High (10kHz) ...........................................................................................................................±12dB
Mid (1kHz)...............................................................................................................................±12dB
Low (100Hz) ............................................................................................................................±12dB
OUTPUT EQ
High (10kHz) ...........................................................................................................................±12dB
Hi-Mid (2kHz) ..........................................................................................................................±12dB
Low-Mid (400Hz) .....................................................................................................................±12dB
Low (80Hz) ..............................................................................................................................±12dB
Residual Noise...............................................................................................................Less than –90dB
Crosstalk .......................................................................................................................Less than –60dB
Phantom Power .......................................................................................................................+18V DC
- GENERAL
Power Source........................................................................AC 120V, 230V, 240V, 50/60Hz, DC 24V
Power Consumption .......................................................................................................................10W
Weight.........................................................................................................................................7.5kg
Dimensions.................................................................................................482(W) 88(H) 280(D)mm
* Specifications and design subject to change without notice for improvements.

MADE IN KOREA
December 2005 9007980130 A
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.
INTER-M AMERICAS, INC.
1 EAST BEACON LIGHT LANE CHESTER, PA USA 19013-4409
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [email protected]
INTER-M Corporation
SEOUL OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [email protected]
PP-9213_E(215.9*279.4) 05.12.13 6:53 PM 페이지1