BARO BR-300A User manual

BARO SNT USER
MANUAL
www.barosnt.com
VER.1.0
2015/05/13
AMPLIFIER BR-300A
AMPLIFIER
BR-300A

CONTENTS
www.barosnt.com
Before Use:
Handling Precautions..……………………………………………………….3
Installation Precautions………………………………………………………3
Safety Precautions……………………………………………………………4
Warnings………….……………………………………………………………5
Cautions…………..……………………………………………………………6
Physical Layout:
Front…………………………………………………………………………… 8
Rear…………………………………………………………………………….9
Specifications……………………………………………………………………………………….10
Physical Specifications…………………………………………………………………………….10
Default Installation Recommendations…………………………………………………………..11
Device Connection:
Front…………………………………………………………………………… 12
Rear…………………………………………………………………………….13
Troubleshooting Guide…………………………………………..………………………………..14
2

3
www.barosnt.com
Handling Precautions:
Do not remove the product
casing. The product’s
components can deliver fatal
electrical shock.
Do not put metallic objects
into the product. This can
result in product damage and
severe electrical shock.
Do not touch the device with
wet hands or if the device has
been in contact with water.
This can result in severe
electrical shock.
Do not pull the cord when
unplugging the product. Grab
the plug only. Ensure the cord
is not tangled.
If the product emits a burning
scent, unplug it immediately
from its power source and
contact a service
representative.
Clean only with a dry cloth.
Do not use liquids such as
gasoline or benzene when
cleaning. This may result in
fire.
Installation Precautions:
When not in use turn the
product off and disconnect it
from its power source.
Ensure the product operates
at the correct voltage.
AC: 220V/60Hz
DC: 24V
Do not install the product in
direct sunlight. This can lead
to the product overheating
and may result in product
damage or fire.
Do not install the product
near heating appliances.
Do not install the product in
dusty or humid environments.
This can lead to premature
product failure.
Do not install the product in a
location where it will be
subject to vibrations. This can
lead to premature product
failure.
Do not install the product
where it will be subjected to
extreme hot or cold
temperatures.
Do not block the product’s
ventilations holes or install in
a poorly ventilated space.
This may lead to product
overheating.

4
www.barosnt.com
Safety Precautions:
Before installing the product be sure to read both the Safety Precautions and Handling Instructions fully. After
reading, store this manual in a place where it can be easily accessed for future reference.
Warning Symbol Descriptions:
Designation: Hand Pinching
Meaning: This image indicates a risk of injury to fingers and hands.
Designation: Do Not Dissassemble
Meaning: This image indicates that the product or specific components of the product
should never be dissassembled.
Designation: Power Plug Disconnection
Meaning: This image indicates that the user should disconnect the product from its power
source.
WARNING CAUTION
Ignoring the suggestions made under
this symbol can result in serious injury
or even death.
Ignoring the suggestions made under
this symbol can result in injury or
physical damage to the product or
property.
*** Ensure that the end user understands all precautions and is in possession of the documentation that
corresponds to their devices.

5
www.barosnt.com
•If smoke or strange sounds are emitted from the product, immediately turn off the
power switch and disconnect the system from its power source and other devices.
Issues such as these could result in fire or electrical shock. After disconnecting the
product from its power source, ensure there is no fire and contact your product
representative or service centre immediately.
•If water or any other liquid enters the product, immediately turn off the power switch
and disconnect it from its power source and other devices. After disconnecting the
product, contact your product representative or service or service centre
immediately. Doing otherwise could result in fire or electrical shock.
•If the product is dropped or the product housing is broken, turn of the power switch
and disconnect the product from its power source and other devices. After
disconnecting the product, contact your product representative or service or
service centre immediately. Doing otherwise could result in fire or electrical shock.
•Use only the specified power input (DC: 220V, 60Hz). Using a voltage other than
the one specified may result in product failure or electrical shock.
•Ensure that water does not enter this product. This will create a risk of electrical
shock. Do not use in extremely humid environments. If using outdoors, avoid use
during rainy weather, near bodies of water, or water sources of any kind.
•Ensure that metals and flammable materials are not inserted into the product’s
interior or ports. Take extra precautions that children also avoid these actions.
•This device may be connected by its AC OUTLET. The power consumption of the
connected equipment should not be more than that of the power marked on the AC
outlet. There is a risk of fire. Do not connect heaters, hairdryers, or heating plates.
•This device should be installed at least 10cm away from any walls. Care should be
taken to avoid this product radiating heat onto other devices. When installed in
racking, the handling instructions should be read carefully and adhered to. Failure
to do so will increase the product’s internal temperature and may lead to fire.
•Never install this product in a washroom, sauna, or other location where water is
commonly found. This can lead to electrical shock.
WARNING

6
www.barosnt.com
•Never place heavy objects on top of the product’s power cable. Never place the
product on top of its power cable. If the cord is damaged or overheated there is a
risk of fire. This may also lead to electrical shock.
•If the power cable is damaged, please contact your product representative or
service centre immediately. Do not use the product with a damaged cable as it may
lead to electrical shock or fire.
•Do not heat, bend, scratch, or use excessive force with the power cable. Doing so
will damage the cable.
•Do not alter or disassemble this product. This will cause a risk of electrical shock
and fire.
•Do not open the product’s housing. This will cause a risk of electrical shock and
fire. This product should only be service by a qualified technician who has been
selected by your product representative or service centre.
•Do not use this product during lightning storms or other inclement weather. Unplug
the product from all other devices and power sources to ensure it does not receive
any power surges. Use at this time presents a risk of electrical shock
•This product is provided with some small parts and plastic packaging. Ensure that
no children consume any components. If consumed, contact a doctor immediately.
•Do not install this product in areas with high humidity or dust. This increases risk of
fire and electrical shock.
•Do not install on countertops, near humidifiers or heating devices. This increases
the risk of fire and electrical shock.
•Do not block the product’s ventilation holes. This increases the internal temperature
and increases risk of product failure and fire.
•Refrain from using the product upside down or on its end. Ensure the product’s
ventilation is not blocked when installing in a rack.
•Do not install the product on top of a blanket or carpeting.
•Do not install in an environment where the device will be subject to shaking. This
could lead to product failure or injury.
CAUTION

7
www.barosnt.com
•Do not climb onto or place heavy objects on top of this product. This can lead to
damage of the product housing or blockage of the product’s ventilation, increasing
risk of fire or electrical shock.
•Ensure that children to do not attempt to put their hands or object into the product
or its power source. There is a high risk of electrical shock.
•Ensure that children are not able to access the product packaging. There is a risk
of injury or suffocation.
•Ensure the power cable does not overheat. If the cable housing is damaged or
melted there is a high risk of fire or electrical shock.
•Handle the power cable by the plug, refrain from pulling on the cable only. Pulling
on the cable can lead to damage and risk of fire or electrical shock.
•Never use this product with wet hands. It could lead to electrical shock.
•When not in use for an extended period of time, unplug the product from its power
source. Be sure to handle the plug and refrain from pulling on the cable.

PHYSICAL LAYOUT: FRONT
8
www.barosnt.com
MIC 1, 2
1.
Input Jacks
(1/4” Phone Jack)
Connect microphone or other signal
inputs.
2.
Pad
In cases where the microphone or
other input signals are too high,
activating this switch will lower the
input signals by -20dB.
3.
Peak LED
Monitor the status of audio levels and
ensure that outputs are not peaking.
When levels reach their peak, the
LED will light.
4.
Volume Manage the volume of the
corresponding input connected.
5.
Pan Manage the left/right channel output.
6.
Echo Manage the level of the amplifier’s
echo effect.
7.
3-Band EQ
(Low, Mid, High)
Adjust low, mid, and high tone levels
for inputs 1 and 2.
Echo
8.
Stereo / Mono Echo
Choose between the echo effect
being active in stereo or mono.
9.
Volume Delay
Sets the time gap between the
original noise and the delay effect
response.
10.
EQ (Low, High)
Delay
Adjust the settings of the low and
high tones in the delay effect.
11.
Repeat Sets the number of echo repeats
12.
Delay
Lengthens the duration of the echo
repeats. Setting too high may lead to
howling.
Music
13.
Selector A/B
Selects sources that have been
connected to the Aux ports on the
rear of the amplifier.
14.
Volume Adjusts
the volume level of Aux inputs.
15.
3-Band EQ (Low,
Mid, High)
Adjusts tonal settings for Aux inputs.
Master
16.
Master Level Sets the output volume for all inputs
and sources.
17.
Master EQ Adjusts the tone and frequency
settings for all inputs and sources.
18.
CH. L / CH. R EG Signals activity in left and right
channels.
19.
Power LED When LED is lit, amplifier is active.
20.
Power Switch Main power switch turns the amplifier
on and off.
1
2
3 4 5 6 7 16
13 14 15 17 19 20
8 9 10 11 12
18

PHYSICAL LAYOUT: REAR
9
www.barosnt.com
Power Parts
1.
Power Cord Port
Connect the power cable supplied
with the amplifier to this port.
Remember that the amplifier is
designed to operate on 220V/60Hz
inputs. Only use the power cable
supplied with your product.
2.
Fuse Holder
The amplifier fuse is located under
the power cable port. If replacement
is required, be sure to source the
correct fuse from your Baro
representative.
3.
Ground Terminal
Should be used to properly ground
the product to avoid possible risks of
electrical shock. The terminal can
also be used to alleviate any hissing
or buzzing sounds. These are
typically caused by electrical
interference somewhere in the system.
4.
Fan
Fan used for cooling the amplifier.
Ensure it is free of any blockages and
not placed too closely against walls
or other surfaces. The fan speed may
fluctuate with the internal temperature
of the product.
7.
Record Output Jack
Use this output for connecting and
recording to DAT, CD, and cassette
devices, as it ensure the proper
output for optimal recording.
8.
Mic Output Output designed for microphone
devices specifically.
Amp Outputs
9.
Speaker Outputs
Speaker outputs for main right and
left speakers. The default
configuration is for each channel to
output a maximum of 4 ohms, as
according to common speaker cable.
In the case an auxiliary speaker is
required, the speakers may be
connected to SURROUND LEFT and
RIGHT using the correct polarity to
provide three-dimensional sound.
(Before connecting speakers, confirm
Left/Right Polarity and Impedence)
1 2 3 9 8 56
7
4
Inputs/Outputs
5.
Auxiliary Inputs
Use these inputs to connect audio
devices such as cd players, mp3
players, or radios. 1 and 2 may be
connected to the front and chosen by
the selector.
6.
Line Output
Used as output to other devices,
amplifiers, sub woofers, and sound
systems.

AMPLIFIER SPECIFICATIONS
RMS Power
200 Watts (100W x 2), 4
Ωx 2
Mic Input Channels
2
Ch - Balance / Un Balance MIC or LINE Inputs
AUX Input Channels
Stereo Line Input / 2 Inputs(Select)
Channel
Equalizer
•
High : 12kHz ±15dB
• Mid : 2.5kHz
±15dB
• Low : 80Hz
±15dB / Mic & Line channels
Digital Effects
Digital Delay (Repeat, Time
Control)
Frequency
Response
20Hz~20kHz
±3dB
T.H.D.
Less than 0.1% @ 20Hz~20kHz
S/N Ratio
Greater than
80dB
Level Display
2ch
-2 Dot LED
Power Consumption
325 Watts
Dimensions
420 (W)
x 142 (H) x 345 (D) mm
BR-300A
10
www.barosnt.com
PHYSICAL SPECIFICATIONS (MM)

DEFAULT INSTALLATION RECOMMENDATIONS
11
www.barosnt.com
Microphone Positioning (Anti-Howling):
•The microphone should be held at a distance of approximately 10cm from the mouth. When too
close, the microphone is more susceptible to feedback.
•Hold the microphone on its handle, away from the microphone head. Holding the microphone near
its head and pick-up components increases the odds feedback will occur.
Before Connection:
•After using the following recommendations you can prepare the external connections of your
amplifier.

12
www.barosnt.com
DEVICE CONNECTION
Front Connection:
DEVICE
MIC IN
LEFT 4Ω RIGHT 4Ω SURROUND

13
www.barosnt.com
Rear Connection:
LINE OUT
SPEAKERS
POWER AMPLIFIER
REC OUT
RECORDING DEVICE

TROUBLESHOOTING GUIDE
14
www.barosnt.com
•If there is a problem with your device or you believe it is operating incorrectly, please look at the
following table below for a list of possible remedies.
•If following the suggestions in the table below does not resolve the issue, contact your product
representative or service centre.
Issue Cause Resolution
No sound emitted from any
speakers
1.
Power cable issue.
2.
Speaker cables are damaged or
not connected properly.
3.
Amplifier fuse is damaged.
4.
Speaker issue.
1.
Check the power cable for damage and ensure it is
firmly connected.
2.
Check the speaker cables for damage and connections
on the speaker and amplifier terminals.
3.
Replace the fuse with the replacement fuse provided
with your product. Only use a fuse provided by your
service provider.
4.
Inspect speakers and contact your relative service
provider.
No Sound emitted from
microphone
1.
Microphone input plug is not
connected.
2.
Microphone volume is set to “0.”
3.
Microphone issue.
1.
Disconnect and reconnect the microphone cable at the
input of the amplifier.
2.
Check the volume level knob and ensure it is at the
appropriate output level.
3.
Check the output cable of the microphone or wireless
receiver. Ensure the wireless microphone’s receiver
channels are set properly.
No sound emitted from
devices connected to the
Line input
1.
Input connection failure.
2.
Poor adjustment of connected
devices.
3.
Device or amplifier volume levels
incorrect.
1.
Reconnect the Line-in input.
2.
Check the output volume settings of the connected
device.
3.
Readjust the volume level on the amplifier
Sound emits from
microphone but no effects
are operational
1.
The EFF volume level of the
affected channel is set to the
minimum level.
2.
Failure in echo channel.
1.
Readjust the EFF level of the desired channel.
2.
Reselect the echo channel and try to readjust the
setting.
Level indicators
are working
but no sounds are emitted
1.
The speaker cable is disconnected
or shorted.
2.
The speaker is faulty.
1.
Confirm the cable is not damaged. Check connection at
the amplifier output and input to the speakers.
2.
Inspect the speaker. Contact speaker supplier if issue
cannot be resolved.
No light is emitted from the
power status lamp
1.
Power cable is damaged or
disconnected.
2.
Fuse is damaged.
1.
Confirm the power cable is connected fully to the
amplifier and power source. Look for any signs of
damage to the cable. Confirm the power source is live.
2. Check for damage to the amplifier’s fuse. Replace it with
the additional fuse provided with your product.

Headquarters : 907-ho, 30 Songdomirae-ro, Smart Valley, Yeonsu-gu, Incheon, S. Korea 405-840
Online : http//www.barosnt.com | Office : [phone] | Fax : [phone] | Email : [e-mail]
15