VocoPro DTX-9900K User manual

DTX-9900K
Digital Home Theater Karaoke Amplifier
with Key Control and Digital Reverb
owner's manual
Features:
• 120W Max x 6 @ 8 Ohms In Surround Mode
• 150W Max x 2 @ 8 Ohms In Stereo Mode
• Built-In Dolby AC-3 EX and DTS-ES Digital Home Theater Decoders
• 24-bit DSP Processor for Digital Reverb, Echo and Key Control Applications
• Apply DSP Processing to Either the Source Music or Vocal Signals
• Both Analog and Digital Inputs for Source Devices
• 4 Video Inputs, 3 Video Outputs
• 6 Audio Inputs, 3 Audio Outputs
• Separate Bass and Treble Controls for Music and Microphones Channels
• 3 Microphone Inputs with Volume Controls
• Digital Scrolling Graphic Display for All System Operations
• Full-Function Remote Control
MIC MASTER
VOLUME
AUTO
DISPLAY
TEST
TONE
DTX-9900K
MIC-IN
KARAOKE
DIGITAL KEY CONTROL
MASTER MENU
DIGITAL HOME THEATER KARAOKE AMPLIFIER WITH KEY CONTROL AND DIGITAL REVERB
POWER
MIC 1 MIC 2 MIC 3
MIC 2MIC 1
PRO DIGITAL ECHO
SURROUND
DIGITAL
DIGITAL
SURROUND¥EX
DOLBY
SURROUND
DOLBY
PRO LOGIC
MUSIC VOLUME
AUTO
DETECT
KARAOKE ON
OFF
ECHO DELAY REPEAT
EFFECT
MODE CH. MODE INPUT BASS TREBLE
MUSIC
DSP EQ
MODE MEMORY
RECALL
DISPLAY
ON/OFF MEMORY
#
L
L
b

1
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.

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Welcome...
And Thank you for purchasing the DTX-9900K 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
[e-mail]
Tech Support
[e-mail]
Remember Our Website
Be sure to visit the VocoPro website www.vocopro.com for the latest information on new
products, packages and promos. 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

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 Safety Instructions...........................................
 Welcome………………………………....................
 Listening for a lifetime……………….....................
Contents
1
2
4
DTX-9900K
Digital Home Theater Karaoke Amplifier
with Key Control and Digital Reverb
Introduction
Description and Controls
Installation
18
18
19
19
20,21
 Configuring Output Levels……………...................
 Configuring Your Speakers ……………….............
 Configuring Room Characteristics......................
 Configuring Channel Delays………......................
 Configuring General System Settings.............
 
Setup and Configuration
 Input Selection...........…………….................
 Surround Mode Selection………………................
 EQ Mode Selection..………................................
 DSP Mode Selection....……………......................

Operations
Specifications
Power Rating
20Hz - 20kHz 1% THD @ 4
Main Channel (Stereo Mode): 120W x 2 (RMS)
Main Channel (DSP Mode): 100W x 2 (RMS)
Front Center Channel: 100W x 2 (RMS)
Rear Channel: 50W x 2 (RMS)
Rear Center Channel: 100W x 1 (RMS)
Separation Degree of Stereo: 70dB
S/N Ratio (A Weight): > 90dB
Input Sensitivity/Impedance
Microphone: 0.5mV - 100mV/2K
Line In: 0.707V/51K
Audio: 0.707V/1K
Total Harmonic Distortion
All Channels: <1% 1kHz 10W 8
Freq. Response: 20Hz - 20kHz +/- 0.5
Other
Power: AC~110/240V 50/60Hz
Max. Power Consumption: 800W
Dimensions: 16" (W) x 6.7" (H) x 17.1" (L)
Net Weight: 23.1 Lbs.
 Front Panel....................................................
 Rear Panel………………………………..................
 Remote Control........………………...................
5,6
7
8-10
 Speaker Installation.........................................
 Speaker Connection………………………………......11
12
Audio Connections
 Analog Source................................................
 Input Connections……………………………...…......
 Output Connections……………………………...…...
 Loop Connections……………………………...…......
 External 5.1/6.1……………………………...…......
 Digital Source Connections…………………………..
Coaxial Input……………………………...….............
 Pre-Amp Output...…………………………...…........
 IVideo Connections……………………………...…....
13
13
14
14
15
15
16
16
16
22,23
23
24
25
Karaoke Operations
 Karaoke Mode..............................................
 Microphone Menu Settings....…………………....
 Using Digital Key Control................................
 DSP Vocal Enhancement Selection...................
26
26
27
27
Troubleshooting
 Troubleshooting General Operation..................
 Troubleshooting Karaoke Operation.......……....
 Troubleshooting Surround Sound....................

28
29
30

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
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