VocoPro DA2277 User Manual
DA-2277 FEATURES:
• Wireless Receiver Base Charges Wireless Microphones and Also Serves as a Microphone Docking Station
• 11-Step Digital Key Controller
• Professional Digital Echo with Repeat and Delay Controls
• Vocal Cancel and Vocal Partner Features to Remove Guide Vocals from Multiplex Karaoke Media
• Two Additional Mic Inputs for a Total of Four Microphone Channels w/ Individual Volume Controls
• Digital Echo On/Off Switch on 3 Mic Channels
• Music Bass, Treble and Volume Controls
• Microphone Master, Bass and Treble Controls
• Four A/V Inputs and Two A/V Outputs for Maximum System Integration
• Professional Dynamic Microphone Capsules for Professional Sounding Vocals
• 110V-220V Switchable
DIGITAL KEY CONTROLLER
POWER Down Vocal Partner Vocal Cancel A/V SourceNormal Up
Digital Key Control Mixer with/Dual Rechargeable Wireless Mic System
0 0
Music
9
Delay Repeat Digital Echo Mic 4 Mic 3
0
10
0 10 0 10
5
0
100-15 +150-15 +15
Mic Master
Bass Treble
Echo On Echo On Echo On
Remote
Key Control
Mic 4 Input Mic 3 Input
Mic 1 (wireless)
Mic 2 (wireless)
DA-2277
Digital Key Control Mixer with Dual Rechargeable Wireless Microphone System
v.1
DA-2277
Digital Key Control Mixer with Dual Rechargeable Wireless Microphone System
Contents
Cautions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Listening for a Lifetime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Panel Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front/Top Panel Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Panel Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing/Recharging the Microphone Batteries . . . . . . . . . . . . . . . . . . . . . . .
1-2
3
4
5
6
7-8
9
10
11
12
13
Getting Connected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Understanding and Avoiding VHF Interference. . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary of Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended VocoPro Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14-15
16-18
19
20-21
22-24
Safety Instructions
CAUTION
RISK OF SHOCK
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.
CAUTION: To reduce the risk of electric shock,
do not remove cover (or back). No userserviceable parts inside. Only refer servicing to
qualified service personnel.
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.
WARNING
To reduce the risk of fire or electric shock, do
not expose this unit to rain or moisture.
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.
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.
7 A. An appliance and cart combination
should be moved with care. Quick stops,
excessive force, and uneven surfaces may
cause an overturn.
1
CAUTION: Read this before operating your unit
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.
2
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
The following noises can be dangerous under constant exposure:
Level
90
100
120
140
180
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.
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
4
The DA-2277 Features
DA-2277 FEATURES:
• Wireless Receiver Base Charges Wireless Microphones and Also Serves as a Microphone Docking Station
• 11-Step Digital Key Controller
• Professional Digital Echo with Repeat and Delay Controls
• Vocal Cancel and Vocal Partner Features to Remove Guide Vocals from Multiplex Karaoke Media
• Two Additional Mic Inputs for a Total of Four Microphone Channels w/ Individual Volume Controls
• Digital Echo On/Off Switch on 3 Mic Channels
• Music Bass, Treble and Volume Controls
• Microphone Master, Bass and Treble Controls
• Four A/V Inputs and Two A/V Outputs for Maximum System Integration
• Professional Dynamic Microphone Capsules for Professional Sounding Vocals
• 110V-220V Switchable
Specifications
Inputs Sensitivity:
MICS 3,4 (Wired)
STEREO AUDIO INPUT
Outputs:
AUDIO OUT 1
AUDIO OUT 2
AUDIO OUT 3
MIC OUTPUT
MAXIMUM OUTPUT
Tone Controls:
TREBLE (10KHz)
BASS (100Hz)
Signal to Noise Ratio:
MIC
STEREO
Total Harmonic Distortion:
Frequency Response:
1.5mV/1K ohms (1/4” Jack/Unbalanced)
50mV/10K ohms (RCA Jack)
0.75V/600 ohms (RCA Jack/Unbalanced)
0.75V/600 ohms (RCA Jack/Unbalanced)
0.75V/600 ohms (XLR Jack/Balanced)
-56mV(1/4”/Unbalanced)
+20dBV (8.5Vrms), 0dBV=1V
±15dB (STEREO), ±2dB
±15dB (STEREO), ±2dB
>91dB (Below Max.)
>97dB (Below Max.)
0.07% (STEREO)
+0.1% (MIC)
0Hz~20KHz ±3dB
DIGITAL KEY CONTROLLER
POWER Down Vocal Partner Vocal Cancel A/V SourceNormal Up
Digital Key Control Mixer with/Dual Rechargeable Wireless Mic System
0 0
Music
Delay Repeat Digital Echo Mic 4 Mic 3
0
10
0 10 0 10
5
9
0
100-15 +150-15 +15
Bass Treble
Mic Master
Echo On Echo On Echo On
Remote
Key Control
Mic 4 Input Mic 3 Input
Mic 1 (wireless)
Mic 2 (wireless)
RECHARGEABLE VHF WIRELESS MICROPHONE:
Frequency Range: .................VHF frequency 180 to 250MHz.
Frequency Precision: .............±0.005¢M controlled by quartz.
Modulation: ...................................................................FM type
Maximum Deviation: ....................................................±15KHz
Frequency Response: ...................................100Hz to 13KHz
Signal/Noise Ratio: ...................................................over 80dB
Operation Scope: ........................Radius 166' ( in free space )
Muting Type: .....T ONE-Squelch coding lock still sound design
Receiving Sensitivity: .................................................10dB/uV
De-emphasis: .....................................................................50uS
Harmonic Interfering Ratio: .....................................over 80dB
Echo:
Key:
Dimensions:
Net Weight:
Power Consumption:
5
up to 300mS
9 steps up & down 1 octave
19” (W) x 9.5” (D) x 3.5” (H)
10.6 Lbs.
10W
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 DA-2277 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 DA-2277 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 DA-2277, route all cables down the side of the
back of the DA-2277 instead of straight down the middle of the back of the
DA-2277.
Important Stand and Base Safety Information
Choose the location for your DA-2277 carefully. If the DA-2277 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
DA-2277.
Unpacking the DA-2277
First carefully unpack all of the box contents. You should
have found the following items with your new DA-2277:
1 DA-2277 Receiver
2 Wireless Microphone Transmitters
2 RCA A/V Patch Cables
1 Four-Pack of AA Rechargeable Batteries
2 Mounting Brackets
7 Mounting Bracket Screws
Delay Repeat Digital Echo Mic 4
0
10
Music
9
0 10 0 10
5
0
100-15 +150-15 +15
Mic Master
Bass Treble
Echo On
Mic 4 Input
Mic 3
Echo On Echo On
Remote
Key Control
Mic 3 Input
Mic 1 (wireless)
Mic 2 (wireless)
DIGITAL KEY CONTROLLER
POWER Down Vocal Partner Vocal Cancel A/V SourceNormal Up
Digital Key Control Mixer with/Dual Rechargeable Wireless Mic System
0 0
6
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