VocoPro KC-300 PRO User manual

KC-300Pro
DSP KEY CONTROLLER/SONIC ENHANCER
HIGH DEFINITIVE SOUND
owner's manual
INPUT SELCTOR
SOUNIC ENHANCER
VOCAL CANCEL
DSPKEYCONTROLLER
MULTI -DISPLAY
RECEIVER
KC-300Pro
POWER
DSPKEYCONTROLLER
SONIC ENHANCER
MULTIPLEX
VOCAL ELIMINATOR
UP
DOWNRESET
ON
LOHI
MINMAX

2
Safety Instructions
CAUTION
RISK OF SHOCK
CAUTION: To reduce the risk of electric shock,
do not remove cover (or back). No user-
serviceable parts inside. Only refer servicing to
qualified service personnel.
WARNING
To reduce the risk of fire or electric shock, do
not expose this unit to rain or moisture.
Explanation of Graphical Symbols
The lightning flash & arrowhead
symbol, within an equilateral triangle,
is intended to alert you to the
presence of danger.
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and servicing instructions.
1. Read Instructions - All the safety and operating
instructions should be read before the appliance is
operated.
2. Retain Instructions - The safety and operating
instructions should be retained for future reference.
3. Heed Warnings - All warnings on the appliance and in
the operating instructions should be adhered to.
4. Follow Instructions - All operating and use
instructions should be followed.
5. Attachments - Do not use attachments not
recommended by the product manufacturer as they may
cause hazards.
6. Water and Moisture - Do not use this unit near water.
For example, near a bathtub or in a wet basement and
the like.
7. Carts and Stands - The appliance should be used
only with a cart or stand that is recommended by the
manufacturer.
7 A. An appliance and cart combination
should be moved with care. Quick stops,
excessive force, and uneven surfaces may
cause an overturn.
8. Ventilation - The appliance should be situated so its
location does not interfere with its proper ventilation. For
example, the appliance should not be situated on a bed,
sofa, rug, or similar surface that may block the
ventilation slots.
9. Heat - The appliance should be situated away from
heat sources such as radiators, heat registers,
stoves, or other appliances (including amplifiers)
that produce heat.
10. Power Sources - The appliance should be
connected to a power supply only of the type described
in the operating instructions or as marked on the
appliance.
11. Grounding or Polarization – Precautions should be
taken so that the grounding or polarization means of
an appliance is not defeated.
12. Power-Cord Protection – Power-supply cords
should be routed so that they are not likely to be walked
on or pinched by items placed upon or against them,
paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit
from the appliance.
13. Cleaning – Unplug this unit from the wall outlet
before cleaning. Do not use liquid cleaners or
aerosol cleaners. Use a damp cloth for cleaning.
14. Power lines – An outdoor antenna should be
located away from power lines.
15. Nonuse Periods – The power cord of the appliance
should be unplugged from the outlet when left unused
for a long period of time.
16. Object and Liquid Entry – Care should be taken so
that objects do not fall and liquids are not spilled into the
enclosure through openings.
17. Damage Requiring Service – The appliance should
be serviced by qualified service personnel when:
A. The power supply cord or plug has been damaged; or
B. Objects have fallen into the appliance; or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally
or exhibits a marked change in performance; or
E. The appliance has been dropped, or the enclosure
damaged.
18. Servicing – The user should not attempt to service
the appliance beyond that described in the operating
instructions. All other servicing should be referred to
qualified service personnel.
Note:
To CATV system installer’s (U.S.A.): This reminder is
provided to call the CATV system installer’s attention to
Article 820-40 of the NEC that provides guidelines for
proper grounding and, in particular, specifies that the
cable ground shall be connected as close to the point of
cable entry as practical.

3
CAUTION
The apparatus is not disconnected from the AC power source so long as it is connected to the
wall outlet, even if the apparatus itself is turned off. To fully insure that the apparatus is indeed
fully void if residual power, leave unit disconnected from the AC outlet for at least fifteen
seconds.
1. To ensure the finest performance, please read this manual carefully. Keep it in a safe place for future
reference.
2. Install your unit in a cool, dry, clean place – away from windows, heat sources, and too much vibration,
dust, moisture or cold. Avoid sources of hum (transformers, motors). To prevent fire or electrical shock, do
not expose to rain and water.
3. Do not operate the unit upside-down.
4. Never open the cabinet. If a foreign object drops into the set, contact your dealer.
5. Place the unit in a location with adequate air circulation. Do not interfere with its proper ventilation; this will
cause the internal temperature to rise and may result in a failure.
6. Do not use force on switches, knobs or cords. When moving the unit, first turn the unit off. Then gently
disconnect the power plug and the cords connecting to other equipment. Never pull the cord itself.
7. Do not attempt to clean the unit with chemical solvents: this might damage the finish. Use a clean,
dry cloth.
8. Be sure to read the “Troubleshooting” section on common operating errors before concluding that your unit
is faulty.
9. This unit consumes a fair amount of power even when the power switch is turned off. We recommend that
you unplug the power cord from the wall outlet if the unit is not going to be used for a long time. This will
save electricity and help prevent fire hazards. To disconnect the cord, pull it out by grasping the plug.
Never pull the cord itself.
10. To prevent lightning damage, pull out the power cord and remove the antenna cable during an electrical
storm.
11. The general digital signals may interfere with other equipment such as tuners or receivers. Move the
system farther away from such equipment if interference is observed.
12. When positioning your equipment, especially regarding speakers or other accessories, avoid positioning
them over areas where they can fall and cause injury to yourself and others.
CAUTION: Read this before operating your unit
Note:
Please check the copyright laws in your country before recording from records, compact discs, radio, etc.
Recording of copyrighted material may infringe copyright laws.

4
Welcome….
And Thank you for purchasing the KC-300Pro from VocoPro, your ultimate choice in
Karaoke entertainment! With years of experience in the music entertainment business,
VocoPro is a leading manufacturer of Karaoke equipment, and has been providing
patrons of bars, churches, schools, clubs and individual consumers the opportunity to
sound like a star with full-scale club models, in-home systems and mobile units. All our
products offer solid performance and sound reliability, and to further strengthen our
commitment to customer satisfaction, we have customer service and technical support
professionals ready to assist you with your needs. We have provided some contact
information for you below.
VocoPro
1728 Curtiss Court
La Verne, CA 91750
Toll Free: 800-678-5348
TEL: [phone]
FAX: [phone]
VocoPro Company Email Directory
Customer Service & General Information
[email protected]
Tech Support
[email protected]
Remember Our Website
Be sure to visit the VocoPro website www.vocopro.com for the latest information on new
products, packages and promo’s. And while you’re there don’t forget to check out our
Club VocoPro for Karaoke news and events, chat rooms, club directories and even a
Service directory!
We look forward to hearing you sound like a PRO, with VocoPro, your ultimate choice in
Karaoke entertainment.
FOR YOUR RECORDS
Please record the model number and serial number below, for easy reference, in case of loss or theft. These
numbers are located on the rear panel of the unit. Space is also provided for other relevant information
Model Number
Serial Number
Date of Purchase
Place of Purchase

5
Listening For A Lifetime
Selecting fine audio equipment such as the unit you’ve just purchased is only the start of
your musical enjoyment. Now it’s time to consider how you can maximize the fun and
excitement your equipment offers. VocoPro and the Electronic Industries Association’s
Consumer Electronics Group want you to get the most out of your equipment by playing it
at a safe level. One that lets the sound come through loud and clear without annoying
blaring or distortion and, most importantly, without affecting your sensitive hearing.
Sound can be deceiving. Over time your hearing “comfort level” adapts to a higher volume
of sound. So what sounds “normal” can actually be loud and harmful to your hearing. Guard
against this by setting your equipment at a safe level BEFORE your hearing adapts.
To establish a safe level:
• Start your volume control at a low setting.
• Slowly increase the sound until you can hear it comfortably and clearly, and without
distortion.
Once you have established a comfortable sound level:
• Set the dial and leave it there.
• Pay attention to the different levels in various recordings.
Taking a minute to do this now will help to prevent hearing damage or loss in the future.
After all, we want you listening for a lifetime.
Used wisely, your new sound equipment will provide a lifetime of fun and enjoyment. Since
hearing damage from loud noise is often undetectable until it is too late, this manufacturer
and the Electronic Industries Association’s Consumer Electronics Group recommend you
avoid prolonged exposure to excessive noise. This list of sound levels is included for your
protection.
Some common decibel ranges:
Level
30
40
50
60
70
80
Example
Quiet library, Soft whispers
Living room, Refrigerator, Bedroom away from traffic
Light traffic, Normal Conversation
Air Conditioner at 20 ft., Sewing machine
Vacuum cleaner, Hair dryer, Noisy Restaurant
Average city traffic, Garbage disposals, Alarm clock at 2 ft.
The following noises can be dangerous under constant exposure:
Level
90
100
120
140
180
Example
Subway, Motorcycle, Truck traffic, Lawn Mower
Garbage truck, Chainsaw, Pneumatics drill
Rock band concert in front of speakers
Gunshot blast, Jet plane
Rocket launching pad
-Information courtesy of the Deafness Research Foundation

6
KC-300Pro
Cautions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Listening for a Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Description and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel Description and Functions . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Descriptions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . .
Rack Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . .
Getting Connected. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. . . . . . . . . . . . . . . . . . .
Recommended Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents
2-3
4
5
7
7
8
9
10
11
12
13-14
15
16
17-18
19-22
DSP KEY CONTROLLER/SONIC ENHANCER

7
The KC-300Pro’s Features
• 17-Step DSP Key Controller
• Vocal Cancel to Remove Vocals from
Multiplex Karaoke Software
• Vocal Eliminator to Eliminate Vocals from
Standard CD’s
• Sonic Enhancer Optimizes High/Low
Frequencies for a Full and Rich Sound
• Full-Function Remote Control
• Large Multi-Display for Easy Viewing in
Low-Light Situations
• Super Slim 1RU design
• Inputs: 3 Audio (2 RCA, 1 XLR)
2 Video (RCA)
• Outputs: 2 Audio (1 RCA, 1 XLR), 2 Video (RCA)
• 115V-230V Switchable
AUX
HILO
ON
UPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
Specifications
Input Sensitivity/Impedance ..................................................................................
Maximum Output ...........................................................................................
Maximum Response Range (ALL) .............................................................................................................................
S/N Ratio (Effects Off) ...................................................................................................
Key Control S/N Ratio (Effect OFF) ............................................................................................................................
Vocal Eliminator Center Frequency ...........................................................................................................................
Effect Center Frequency..............................................................................
Key Control System .......................................................
Key Control Range ................................................................................................................
Key Reset Time ......................................................................................................................
Volume Muting ............................................................................................................................................................
Dimensions ...............................................................................................................................
Net Weight ........................................................................................................................................
Power Voltage Requirement .................................................................................
Power Consumption .......................................................................................................................................................
Remote Control ...............................................................................................................................................
Accessories ............................................................................................................
200mV/22k Ohm (balanced/unbalanced)
AC 10 Vrms/220 Ohm (balanced/unbalanced)
>17dB
>95dB (Muting OFF) AV1/AV2/AUX
>80dB
1300Hz
Low 80Hz +8dB (Max) High 12KHz +8dB (Max)
Variable (IN-SIDE Key Control AUTO-RESET SWITCH SELECT)
+/- 8 Key (Each step 75 cents)
3 Second (Audio Detect L+R)
>95dB
19” (W) x 1.75” (H) x 13” (D)
22 Lbs. (Including box)
120V (Fuse 2A)/240V (Fuse 1A) Variable
18W
2 AA Batteries
Remote Control and Instruction Manual
MULTIPLEX
VOCAL ELIMINATOR

8
Before Getting Started: Things to Consider
It is very important to read the following instructions prior to starting any installation
procedures. Doing so will ensure a correct installation and may save you some time as well.
Protect Against Power Surges
• Connect all external components before you plug any of their power cords into the
wall outlet.
• Turn off the KC-300Pro before you connect or disconnect any cables.
• Make sure all cables are properly grounded.
Protect Components from Overheating
• Don’t block ventilation holes. Arrange any components so that air can circulate freely.
• Don’t stack components.
• If you place the KC-300Pro on a stand, make sure you allow adequate ventilation.
Position Cables Properly to Avoid Audio Interference
• Insert each cable firmly into the designated jack.
• If you place components above the KC-300Pro, route all cables down the side of the
back of the KC-300Pro instead of straight down the middle of the back of the
KC-300Pro.
Important Stand and Base Safety Information
Choose the location for your KC-300Pro carefully. If the KC-300Pro is placed on a stand or
base, ensure that it is of adequate size and strength to prevent it from being accidentally
tipped over, pushed off, or pulled off. This could cause personal injury and/or damage to the
KC-300Pro.
Use Indirect Light
Don’t place the KC-300Pro where sunlight or room lighting will be directed toward the
screen. Use soft or indirect lighting.

9
Front Panel Descriptions
1
245678910 11
3
7. ON button – Turns the SONIC
ENHANCER ON/OFF.
8. LOW knob – Adjusts the levels of LOW
FREQUENCY ENHANCEMENT made by
the SONIC ENHANCER. Turn clockwise
to INCREASE and counter-clockwise to
DECREASE.
9. HIGH knob – Adjusts the levels of HIGH
FREQUENCY ENHANCEMENT made by
the SONIC ENHANCER. Turn clockwise
to INCREASE and counter-clockwise to
DECREASE.
10. MUSIC knob – Increases and
decreases the MASTER VOLUME.
Turn clockwise to INCREASE and
counter-clockwise to DECREASE.
11. INPUT SELECTOR button – Cycles
through the A/V1, A/V2 and AUX
input channels.
1. POWER button – Turns the unit ON/OFF.
2. MULTI-DISPLAY panel – Displays numeric
values of the units OPERATING STATUS.
3. DOWN button – Lowers the MUSICAL KEY
a half step each time it is pressed.
4. RESET button – Resets the MUSICAL KEY
back to it’s original key.
5. UP button – Raises the MUSICAL KEY a
half step each time it is pressed.
6. MULTIPLEX button – Selects between
VOCAL CANCEL and VOCAL ELIMINATOR
features. Also used to disable a Vocal
feature.
AUX
HILO
ON
UPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
MULTIPLEX
VOCAL ELIMINATOR

10
Rear Panel Descriptions
11 12
13
1 2 3 5 7 9
6 8
1. A/V 1 AUDIO IN jacks (RCA) – Receives
audio output from a device on A/V 1
channel. Connect a paired RCA audio cable
from these jacks to the AUDIO OUTPUT jacks
on A/V device 1.
2. A/V 2 AUDIO IN jacks (RCA) – Receives
audio output from a device on A/V 2
channel. Connect a paired RCA audio cable
from these jacks to the AUDIO OUTPUT jacks
on A/V device 2.
3. INPUT LEVEL control – Adjusts the INPUT
LEVEL from the device connected to the AV1
AV2 and AUX channel. Turn clockwise to
increase and counter-clockwise to decrease.
4. AUX AUDIO IN jacks (RCA) – Receives
audio output from a device on AUX
channel. Connect a paired RCA audio cable
from these jacks to the AUDIO OUTPUT jacks
on AUX device.
5. AUX AUDIO IN jacks (XLR) – Receives
audio output from a device on the AUX
channel. Connect a pair of XLR audio cables
from these jacks to the AUDIO OUTPUT jacks
on the AUX device.
6. A/V 1 VIDEO IN jack (RCA) – Receives
video output from a device on A/V 1
channel. Connect a RCA video cable from this
jack to the VIDEO OUTPUT jack on A/V 1
device.
7. A/V 2 VIDEO IN jack (RCA) – Receives
video output from a device on A/V 2
channel. Connect a RCA video jack
cable from this jack to the VIDEO OUTPUT
jack on A/V 2 device.
8. A/V 1 VIDEO OUT jack (RCA) – Sends
video output to a primary TV or display
device. Connect an RCA video cable from
this jack to your TV'S VIDEO INPUT JACK.
9. A/V 2 VIDEO OUT jack (RCA) – Sends
video output to a secondary TV or display
device. Connect an RCA video cable from
this jack to your TV'S VIDEO INPUT JACK.
10. AUDIO OUT jacks (RCA) – Sends
audio output to an amplifier, mixer or
recorder. Connect a paired RCA audio
cable from these jacks to the AUDIO
INPUT jacks of an amplifier, mixer or
recording device.
11. AUDIO OUT jacks (XLR) – Sends
audio output to an amplifier, mixer or
recorder. Connect a pair of XLR audio
cables from these jacks to the AUDIO
INPUT jacks of an amplifier, mixer or
recording device.
Note: The RCA and the XLR audio output jacks
can be used simultaneously. For example, you
can have an amplifier connected to the XLR
audio output jacks and a recording device
connected to the RCA audio output jacks at the
same time.
12. VOLTAGE SELECTOR – Toggles
between 115V and 230V VOLTAGE
SETTINGS.
13. AC~IN terminal – Connects the AC
POWER CORD from the wall outlet.
AV1 - INPUT AV2 - INPUT
R L R L
AUDIO VIDEO
AUX-IN AUX-IN
INPUT: AC V:120V 60HZ
POWER CONSUMPTION: 12W
115
INPUT OUTPUT
AV 2
AV 1 1
2
MONO
R
AV1
AV2
AUX
INPUT
LEVEL
L
MONO
AUDIO-OUT AUDIO-OUT
MONO
R L
MONO
10
4

11
Remote Control Descriptions and Functions
1. DSP KEY CONTROL buttons – DIRECT
ACCESS buttons to any of the DSP Key
Controllers 17 Steps.
2. AUX button – Selects the device connected
to the AUX channel as the current
INPUT SOURCE.
3. AV2 button – Selects the device connected
to the AV2 channel as the current INPUT
SOURCE.
4. AV1 button – Selects the device connected
to the AV1 channel as the current INPUT
SOURCE.
5. SONIC ENHANCER button – Turns the
SONIC ENHANCER feature ON/OFF.
6. MULTI-AUDIO button – Selects through
VOCAL CANCEL, VOCAL ELIMINATOR and no
vocal mode.
7. MUSIC VOLUME buttons – Raises and
lowers the MASTER MUSIC VOLUME.
1
2 3 4
b1 #5
#6
#7
#8
#1
#2
#3
#4
b2
b3
b4
AUX AV2 AV1
b5
b6
b7
b8
DSP KEY CONTROL
MUSIC VOLUME
MUSIC EFFECT
RESET SOURCE INPUT SELECTOR
NORMAL
MULTIPLEX
<
<
<VOCAL-ELIMINATOR
RC-2
b #
56
7
<
SONIC-ENHANCER

12
Rack Mounting
Tools required:
•Phillips Screwdriver
• 7 Bracket Screws
• 2 Mounting Brackets
• 19” Rack Case
For mounting versatility, the KC-300Pro can be installed as a stand alone component in a home entertainment
system or mounted to a compatible rack case via the included mounting brackets.
To install to a pre-existing entertainment system:
1. Place unit in desired space and make appropriate connections.
To install unit to a rack case, complete the steps below:
1. Attach mounting brackets to the KC-300Pro with the mounting screws provided.
(There is one bracket for each side).
(not included)
(included) (if rack mounting)
(included) (if rack mounting)
(not included)
Left side Mounting Bracket Right side Mounting Bracket w/screws
Required: 1 RU of Rack Space
To install unit to a rack case, complete the steps below.
1. Align the KC-300Pro with desired
space in rack and slide in slowly, rear panel first.
2. While aligned, use rack case screws (not
included) in the order shown in the diagram to
stabilize the KC-300Pro in its space. Using the “X”
rotation (numbered above) will ensure even tension
and plush alignment.
Note: Do not firmly tighten the screws until all the
screws are in place.
MUSIC EFFECTSOUNDENHANCEMENTMUSICVOL.
INPUT SEL.
AUXAV2AV1
LO HI MIN MAX
POWER
RECEIVER
MULTI - DISPLAY
2
4
1
3

Getting Connected
Connecting Player(s) to the KC-300Pro
The KC-300Pro can have 2 A/V devices and 1 line-level auxiliary device connected as it’s source
players.
(a) For each A/V device, you will need an A/V patch cable (red, white and yellow RCA plugs). Plug
one set of plugs to the appropriate AUDIO OUT and VIDEO OUT jacks on you’re A/V device. Plug
the other set of plugs to the A/V1 INPUT and A/V1 VIDEO INPUT jacks on the KC-300Pro. Repeat
steps for a second A/V device using A/V2 INPUT and A/V2 VIDEO INPUT jacks.
(b) To connect an AUXILIARY device, you will need either a line-level patch cable (red and white
RCA plugs), or XLR cables. Plug one pair of RCA/XLR plugs to the appropriate AUDIO OUT jacks
on your auxiliary device. Plug the other pair of RCA/XLR plugs to the AUX IN jacks on the
KC-300Pro.
Connecting the DKC-300 Pro to Mixer/Amplifier/Recording Device(s)
The KC-300Pro has one AUDIO OUTPUT channel with RCA and XLR jacks:
(a) Using either a line-level patch cable or XLR patch cable, connect one pair of plugs to the
appropriate AUDIO IN jacks on your amplifier/receiver. Connect the other pair of plugs to the AUDIO
OUT jacks on the KC-300Pro. Repeat for a second mixer/amplifier/recording device.
Note: For most A/V patch cables red and
white plugs are for audio, yellow plug is video
13
IN
A/V DEVICE
KC-300Pro
Red
Patch cable
White
yellow
IN
AUXILIARY DEVICE KC-300Pro
Red
Female side
Male side
Patch cable
White
XLR Cable
IN
AMPLIFIER
KC-300Pro
Red
Female side
Male side
Patch cable
White
XLR Cable
OR
OR
AUX
HILOBBE ONMULTI - AUDIOUPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSPKEY CONTROLLER
SONICENHANCER
KC-300Pro
AV2 AV1
AUX
HILOBBE ONMULTI- AUDIOUPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
AV1- INPUT AV2- INPUT
R L R L
AUDIO VIDEO
AUX-IN AUX-IN
INPUT:AC V:120V 60HZ
POWERCONSUMPTION: 12W
115
INPUT
OUTPUT
AV2
AV1 1
2
MONO
R
AV1
AV2
AUX
INPUT
LEVEL
L
AUDIO-OUT AUDIO-OUT
MONO
R L
MONO
AUDIO-IN
L R
AUDIO-IN
L R

Getting Connected
14
VCR Player
Connecting a Video Cable to the TV
The KC-300Pro has two VIDEO OUTPUT jacks.
(a) Connect an RCA video cable from the desired VIDEO OUTPUT jack on the KC-300Pro to the
VIDEO INPUT jack on the TV. Some TV’s will require that you manually switch the TV to the
VIDEO INPUT mode. Other TV’s will automatically switch to the video mode when they detect a
video signal at the video input jack. On most TV’s the jack is labeled AUX or VIDEO.
(b) If the TV does not have a VIDEO INPUT jack you may connect that end of the cable to the
VIDEO INPUT of a VCR and connect the RF OUTPUT of the VCR to the TV ANTENNA INPUT jack
on your TV.
(c) If there is no VCR present, you will need to
use an RF Modulator. To obtain an RF Modulator,
check with your VocoPro dealer. An RF Modulator
can also be purchased from Radio Shack™.
Powering Up
(a) Plug the power cord of the KC-300Pro to a 120-Volt AC wall outlet. To operate the
KC-300Pro from a 220V AC power source, it will be necessary to switch the voltage selector to
220V. This can be done by locating the voltage selector on the rear panel of the KC-300Pro and
switching it to the 220V setting.
(b) Turn on your input source(s), amplifier/receiver and TV. Do not turn on the KC-300Pro.
(c) Be sure your TV is set to receive video input from the VIDEO INPUT jack. (Some TV’s use a
VIDEO INPUT, AUX or CHANNEL 0 as a “dedicated” video channel). Check you TV’s instruction
manual to see how it selects its video channel(s).
(d) Hit the POWER button on the KC-300Pro.
Your Installation Is Complete!
Note: Plugging the KC-300Pro into a 220V
power source can severely damage
the unit and will void the warranty.
TV
TV
IN
KC-300Pro
RCA
Video cable yellow
RCA
Video cable yellow
IN
KC-300Pro
RF Modulator
INPUT AC VOLTAGE:115 V/230 V
POWER CONSUMPTION: 18W
AC ~
115
AUX
HILOBBEONMULTI- AUDIOUPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
AUX
HILOBBEONMULTI- AUDIOUPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1

15
Using the DSP Key Controller
Use the DSP Key Controller to obtain the desired musical key (±4 notes, 17-steps). The DSP
Key Controller indicators (±8 and 0 indicators) display the selected pitch. To step DOWN,
press the left button marked “b”. To step UP, press the right button marked “#”. To revert back
to the original key, press the RESET button. You can also use the DSP Key Control pad on
the Remote Control to obtain DIRECT ACCESS to any of the DSP Key Controller’s steps.
Removing the Vocal Layer from a Multiplex Disc
When playing a Multiplex disc, you can use the VOCAL CANCEL feature to remove the vocal
layer from playback. To select the VOCAL CANCEL audio mode, press the MULTI-AUDIO
button on either the front panel or on the remote control one time (look for red LED activity).
To remove the VOCAL CANCEL audio mode, hit the MULTI-AUDIO two more times
(or till no LED activity is present).
Removing the Vocal Layer from a Standard (Non-Multiplexed) Disc
When playing a standard CD, you can use the VOCAL ELIMINATOR feature to remove the
vocal layer from playback. To select the VOCAL ELIMINATOR feature, press the
VOCAL CANCEL button on either the front panel or on the remote control two times
(look for an orange LED). To bring vocals back to the mix, Press the VOCAL CANCEL
once more (no LED).
Using the Sonic Enhancer to Improve Sound Quality
The built-in SONIC ENHANCER has controls to enhance separately the high and low
frequencies of an audio signal. First you need to initialize the SONIC ENHANCER. To do this,
hit the ON button for the SONIC ENHANCER on either the front panel or on the remote control.
To make a LOW FREQUENCY adjustment, adjust the LOW control on the front panel clockwise
to increase, or counter-clockwise to decrease. To make a HIGH FREQUENCY adjustment,
adjust the HIGH control on the front panel clockwise to increase, or counter-clockwise to
decrease. To disable the SONIC ENHANCER, press the ON button on either the front panel or
on the remote control a second time.
Advanced Operations
UPRESETDOWN
DSP KEY CONTROLLER
#
b
"b" "#"
Notes: This feature is designed to work with any CD, however,
results may vary depending on how the disc was recorded
originally.
b1 #5
#6
#7
#8
#1
#2
#3
#4
b2
b3
b4
AUX AV2 AV1
b5
b6
b7
b8
DSP KEY CONTROL
MUSIC VOLUME
MUSIC EFFECT
RESET SOURCE INPUT SELECTOR
NORMAL
MULTIPLEX
<
<
<VOCAL-ELIMINATOR
RC-2
b #
<
SONIC-ENHANCER
b1 #5
#6
#7
#8
#1
#2
#3
#4
b2
b3
b4
AUX AV2 AV1
b5
b6
b7
b8
DSP KEY CONTROL
MUSIC VOLUME
MUSIC EFFECT
RESET SOURCE INPUT SELECTOR
NORMAL
MULTIPLEX
<
<
<VOCAL-ELIMINATOR
RC-2
b #
<
SONIC-ENHANCER
b1 #5
#6
#7
#8
#1
#2
#3
#4
b2
b3
b4
AUX AV2 AV1
b5
b6
b7
b8
DSP KEY CONTROL
MUSIC VOLUME
MUSIC EFFECT
RESET SOURCE INPUT SELECTOR
NORMAL
MULTIPLEX
<
<
<VOCAL-ELIMINATOR
RC-2
b #
<
SONIC-ENHANCER
b1 #5
#6
#7
#8
#1
#2
#3
#4
b2
b3
b4
AUX AV2 AV1
b5
b6
b7
b8
DSP KEY CONTROL
MUSIC VOLUME
MUSIC EFFECT
RESET SOURCE INPUT SELECTOR
NORMAL
MULTIPLEX
<
<
<VOCAL-ELIMINATOR
RC-2
b #
<
SONIC-ENHANCER
1
AUX
HILOMULTIPLEX ON
ON
VOCAL ELIMINATOR
UPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
AUX
HILOMULTIPLEX
VOCAL ELIMINATOR
UPRESETDOWN MIN MAX
MUSIC VOL
INPUT SELECTOR
SONIC ENHANCERVOCAL CANCELDSP KEY CONTROLLER
MULTI - DISPLAY
RECEIVERPOWER
DSP KEY CONTROLLER
SONIC ENHANCER
KC-300Pro
AV2 AV1
1
2
ON HILOMULTIPLEX
VOCAL ELIMINATOR
SONIC ENHANCERVOCAL CANCEL

16
Troubleshooting
Problem
No sound coming from
selected music source
No graphic output from
display devices when
playing CD+G’s
Vocal Eliminator feature is
not working properly
Vocal Cancel feature is not
working properly
No sonic enhancements are
being applied to audio
High pitched squealing
occurs when using the
microphone
Remote Control is not
functioning
Cause(s)
Input Selector is set incorrectly
Music Master Volume control is
set to minimum
The Input Level control on the
rear panel is set to a minimum
position
Source player is functioning
incorrectly
Video cable(s) are not properly
connected
Disc medium is not a CD+G
TV or monitor device is not set
to the correct video setting
Disc is multiplexed
Disc is not multiplexed
Sonic enhancer is not set to
the ON position
The LOW and HIGH controls
are set at a minimum level
Microphone is pointed to, or to
close to speakers
Treble level(s) are too high on
microphone channel(s)
Batteries are out of charge
There is an obstacle between
the Remote Control and
Sensor
Solution(s)
Change Input Selector to the
correct current playing source
Raise Music Master Volume
level to an appropriate level
Turn up the Input Level control
on the rear panel
Replace player and reset the
KC-300Pro’s power supply
Reconnect cables firmly to
correct video jacks
Insert a CD+G for playback
Change TV or monitor settings
to accept video
Insert a non-multiplexed disc
Insert a multiplexed disc
Press the ON button on the
front panel or remote control
Increase the LOW and HIGH
control levels
Move microphone away from
speakers
Turn down treble level(s) on
microphone channel(s)
Replace with new batteries
Clear area between Remote
Control and Sensor

17
Attenuation – The decrease in amplitude of a signal.
Auxiliary channel (AUX) – A channel reserved for connecting an external audio and/or video device.
A/V – A/V is an abbreviation for Audio/Visual.
Balanced – A circuit having two sides (conductors) carrying voltages that are symmetrical around a common
reference point, typically ground.
CD+G – A specially formatted disc with additional sub-code (data) that is capable of displaying lyrics on video
screens for Karaoke systems. CD+G stands for Compact Disc + Graphics.
Clipping –Refers to a type of distortion that occurs when an amplifier is driven into an overload condition.
Usually the "clipped" waveform contains an excess of high-frequency energy. The sound becomes hard and
edgy. Hard clipping is the most frequent cause of "burned out" tweeters. Even a low-powered amplifier or
receiver driven into clipping can damage tweeters which would otherwise last virtually forever.
Decibel (dB) –Named after Alexander Graham Bell. We perceive differences in volume level in a logarithmic
manner. Our ears become less sensitive to sound as its intensity increases. Decibels are a logarithmic scale
of relative loudness. A difference of about 1 dB is the minimum perceptible change in volume, 3 dB is a
moderate change in volume, and about 10 dB is an apparent doubling of volume. 0 dB is the threshold of
hearing and 130 dB is the threshold of pain.
Delay –Delay is a facet of the echo process. Delay refers to the amount of time that exists between echoes.
Digital Echo –Digital echo is a synthetically processed sound effect that mimics natural echo. Echo in
general is the “bouncing” of waves back and forth between two surfaces. This effect gives a spacious or
ambient feeling that works great with vocals.
Enhancing –Electronically adjusting the quality and sharpness of an audio signal.
Frequency –The range of human hearing is commonly given as 20-20,000Hz (20Hz-20kHz). One hertz (Hz)
represents one cycle per second, 20Hz represents 20 cycles per second and so on. Lower numbers are lower
frequencies
Gain –To increase in level. The function of a volume control.
Impedance –The total of the resistive and reactive opposition, measured in ohms, that a circuit presents to
the flow of alternating current at a given frequency.
Input Selector –A toggle switcher or auxiliary bus used to select through the available inputs of a given
device.
Line Level –CD players, VCRs, Laserdisc Players etc., are connected in a system at line level, usually with
shielded RCA type interconnects. Line level is before power amplification. In a system with separate pre-amp
and power-amp the pre-amp output is line level. Many surround sound decoders and receivers have line level
outputs as well.
Line Voltage – The voltage level of the main power source to a device.
Midrange –A speaker, (driver), used to reproduce the middle range of frequencies. A midrange is combined
with a woofer for low frequencies and a tweeter for high frequencies to form a complete, full-range system.
Glossary of Terms

18
Multiplex (MPX) –Multiplex is a type of Karaoke software that has specially formatted left and right channels to
make multiplex features available. To be formatted for multiplex use, a disc must have the vocals coded to the right
channel and the music to the left channel. When you select a multiplex mode, the unit will remove the right channel
(vocals) and split the left channel (music) to both sides.
Mute – A mode that turns off the audio output to the monitor speakers. Used when a microphone is in the same
room as the monitor.
NTSC – National Television Systems Committee. Organization that formulated standards for the NTSC television
system. Now describes the American system of color telecasting which is used mainly in North America, Japan,
and parts of South America.
Out of Phase – When speakers are mounted in reverse polarity, i.e., one speaker is wired +/+ and -/- from the
amp and the other is wired +/- and -/+. Bass response will be very thin due to cancellation.
PAL – Phase Alternate Line. The name of the color television system in which the EV component of burst is
inverted in phase from one line to the next in order to minimize hue errors that may occur in color transmission.
PAL is a European color TV system used mainly in Europe, China, Malaysia, Australia, New Zealand, the Middle
East, and parts of Africa.
Pre-Amplifier – Or Pre-amp is a device that takes a source signal, such as from a turntable, tape deck or CD
player, and passes this signal on to a power-amplifier(s). The pre-amp may have a number of controls such as
source selector switches, balance, volume and possibly tone controls.
Rack Mountable –Rack Mountable refers to the ability to place unit into professional or travel rack cases. Such
cases are great for building complete systems and protect them during transportation. The standard rack size for
MOST cases is 19”.
Repeat – Repeat is facet of the echo process. Repeat refers to the frequency of echoes within a period of time.
Sub-Code – Sub-code is specially coded area of data used by CD+G manufacturers to produce lyrics for Karaoke
video output.
Tweeter – A speaker, (driver), used to reproduce the higher range of frequencies. To form a full-range system, a
tweeter needs to be combined with a woofer, (2-way system), or a woofer and midrange, (3-way system).
VCD – VCD is a disc formatted in MPEG-1. These discs are good candidates for Karaoke use as they have an
audio and a video layer to them. VCD stands for Video Compact Disc.
Vocal Cancel – Vocal Cancel is a feature that removes vocals from multiplex CD tracks. To be multiplexed, a disc
must have the vocals coded to the right channel and the music coded to the left channel. When you select Vocal
Cancel, the unit will remove the right channel (vocals) and split the left channel (music) to both sides.
Vocal Partner – Vocal Partner is a feature that removes vocals from multiplex CD tracks much in the same way as
Vocal Cancel, but with an added “auto-pilot” function. The main difference is that Vocal Partner will only remove
vocals as long as there is activity going through the microphone (singing). When you stop singing, the vocals
automatically return.
Vocal Reducer (Eliminator) – Vocal Reducer is a feature that removes vocals from standard non-multiplex CD
tracks. To do this, the unit compares the audio on the left and right channels, and cancels out any signals that
appear on both. Most currently recorded CD’s contain the vocal layer on both sides, however some may not,
leading to varying results. This feature is also referred as "Vocal Eliminator"
Woofer – A speaker used for low-frequency reproduction, usually larger and heavier than a midrange or tweeter.
Y-Adapter – A type of adapter that splits a signal into two parts. An example would be a connector with one male
RCA jack on one end, and two female RCA jacks on the other end.
Glossary of Terms

19
Recommended VocoPro Gear
Professional CD/CD+ Graphic Player
• Pro CD Player W/ CD + Graphics Decoder
• Pitch Control To 12% (+) Or (-)
• Scramble protection during pitch changes
• Single Track Mode
• Frame Search W/ Jog Dial
• 4-Speed Fast Forward/Rewind Shuttle.
• Pitch Slider, Pitch Bend and Jog Dial
• BPM (Beat Per Minute) Synchronization
• Cue Detect Function
• Professional 19" Rack Mount Chassis
• Switchable 110-240V
• NTSC/PAL
• Dimensions: 19" W X 3 1/2" H X 10" D
• Shipping Weight: 9.35 Lbs.
CDG-4000 PRO

20
Recommended VocoPro Gear
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Power Amplifier
• 300W + 300W RMS
• 600W + 600W Max
• THD: 0.05%
• Frequency Response: 20HZ-20KHZ Signal to Noise
• 1/4" or XLR Inputs
• Input Ratio: Less than 100DB
• Input Sensitivity: 1.23V
• Dimension: W x D x H (19” x 13” x 1.5”)
• Shipping Weight: 47 Lbs
VP-600X