User Manual
Stereo/Mono Audio Amplifier with 3 Inputs
(2 x Stereo, 1 x MIC)
AT-PA100
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INTRODUCTION
The Atlona AT-PA100 is an Audio Amplifier with 3 Inputs (2 x Stereo, 1 x MIC). The PA100 is based on the digi-
tal amplification circuit (Class-D) and can operate in Stereo mode 2x20w or in Bridge mode (Mono) at 1x40W.
The Atlona amplifier has a built-in EQ control to allow you to adjust Bass and Treble and also mix in a Mic sig-
nal.
It supports RS232 and IR for remote control which is useful in commercial applications when a 3rd party control
systems is utilized.
FEATURES
• Class-D Stereo/Mono Audio Amplifier
• 2x20Watt @ 4 Ω or 1x40Watt @ 8 Ω, amplifier can be used to amplify 2 speakers or one speaker when in
Bridge mode.
• Dual-Mono mode combines left and right input channels, outputting a mono signal to 2 speakers.
• Microphone mixer function: A microphone can be mixed in with the line audio output signal and provide
a discreet volume control.
• Two stereo audio inputs, one Microphone input, and Volume/Bass/Treble are controlled by the front
panel buttons or RS232.
• RS232 control ability provides instant command status.
• Included universal power supply (110Volt~220Volt AC, 50/60Hz) for worldwide compatibility.
SPECIFICATIONS
Audio Input
Input
Audio Output
Output
2 x stereo audio, 1 x MIC
1 x Amplifier, 1 x stereo audio
Input Connector
2 x RCA, 1 x 3.5mm jack,
1 x 6.5mm jack
Output Connector
1 x 3.5mm jack, 1 x Phoenix
connector, 4 pole
Input Impedance
Audio General
>10KΩ
Output Impedance
CMRR
50Ω/stereo, 4~8Ω/Amplifier
Frequency Re-
sponse
20Hz ~ 20KHz
>70dB@20Hz~20KHz
20Hz ~ 25KHz
SMR
80 dB at maximum output
>75 dB @ 20 Hz to 20 kHz
Bandwidth
Stereo Channel
Separation
THD + Noise
1% @ 1 kHz, 0.3% @ 20 kHz
at nominal level
Voltage Gain
Control Parts
Serial Control Port
Remote
32dB
Power Output
20 Watts X 2 (4 Ω)
RS-232, 9-pin female connector
Optional IR remote
Pin Configurations
Front Panel Control
2 = TX, 3 = RX, 5 = GND
Optional mountable keypad
Options
TCP/IP control via RS232 to TCP/IP adapter
NOTE: All measurement levels are at ±10%.
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AUDIO CONNECTION
4.1 Default mode: 2x20Watt@4Ω
The PA100’s default output of the amplifier is 2x20Watt@4Ω.
4.2. Bridge mode: 1x40Watt@8Ω
The PA100 has a Bridge-Mono mode, which allows you to double the wattage to 40Watts by combining 2
channels together and increasing the impedance to 8Ω.
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4.3. Dual-mono mode.
The AT-PA100 has a dual-mono mode. This mode sends the same L/R audio signal to both channels
(speakers).
PUSH-BUTTON CONTROLS
The PA100 has push-buttons for volume/EQ control and input switching.
1. Audio input switching: There are two switchable stereo audio inputs, Stereo RCA and Stereo 3.5mm ter-
minals.
2. Use this button to select which option you with to control.
3. The up and down buttons will raise and lower the level of the 2 options.
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RS232 COMMUNICATION PROTOCOL
Baud rate: 9600 - Data bit: 8 - Stop bit: 1 -Parity bit: none
Command Function Description
Feedback Code
A : 1 -> 1
1A1.
2A1.
0A0.
0A1.
1A0.
2A0.
600%
Switching audio input to input 1
Switching audio input to input 2
Mute the Audio
A : 2 -> 1
Mute Audio
UnMute Audio
Mute Mic
UnMute the Audio
Mute the Mic audio
Mute the Line Out audio
Current Status of the PA100
Mute LIN
A: 1 -> 1
Volume : 30
Bass 00
Treble 00
601%
602%
603%
604%
605%
606%
607%
608%
609%
MIC volume up
Volume of MIC : 51
Volume of MIC : 51
Volume of LINE : 51
Volume of LINE : 51
Bass of LINE : 04
MIC volume down
Line volume up
Line volume down
Bass volume up
Bass volume down
Treble volume up
Treble volume down
Reset to default settings
Bass of LINE : 04
Treble of LINE : 04
Treble of LINE : 04
A : 1 -> 1
Volume : 50
Bass 07
Treble 07
5[x][x]%
7[x][x]%
8[x][x]%
9[x][x]%
Preset MIC volume, [xx] is set from [00] to [60]. 61 degrees in total
Preset line volume, [xx] is set from [00] to [60]. 61 degrees in total
Preset bass volume, [xx] is set from [00] to [08]. 9 degrees in total
Preset treble volume, [xx] is set from [00] to [08]. 9 degrees in total
Volume of MIC : 50
Volume of LINE : 50
Bass of LINE : 04
Treble of LINE : 04
Notice:
1: The characters inside bracket [ ] are the variable code, which is the changeable.
2: The bracket [ ] is not included in the RS232 commands.
Example 1: Switching the input 2 to the line-out should be [2A1.]
Example 2: Turning up the volume of the line audio should be [603%]
Example 3: Preset the MIC volume to be “21” degree should be [521%]
Example 4: Checking the current status of the PA100 should be [600%]
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CONNECTION DIAGRAM
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SAFETY INFORMATION
Safeguards
To reduce the risk of electric shock, do not
expose this product to rain or moisture
Do not modify the wall plug. Doing so will
void the warranty and safety features.
If the wall plug does not fit into your local
power socket, hire an electrician to replace
your obsolete socket.
This equipment should be installed near
the socket outlet and the device should
be easily accessible in the case it requires
disconnection.
Precautions
FCC regulations state that any unauthorized changes or modifications to this equipment, not expressly
approved by the manufacturer, could void the user’s authority to operate this equipment.
Operate this product using only the included external power supply. Use of other power supplies could impair
performance, damage the product, or cause fires.
In the event of an electrostatic discharge this device may automatically turn off. If this occurs, unplug the device
and plug it back in.
Protect and route power cords so they will not be stepped on or pinched by anything placed on or against
them. Be especially careful of plug-ins or cord exit points from this product.
Avoid excessive humidity, sudden temperature changes or temperature extremes.
Keep this product away from wet locations such as bathtubs, sinks, laundries, wet basements, fish tanks, and
swimming pools.
Use only accessories recommended by Atlona to avoid fire, shock, or other hazards.
Unplug the product before cleaning. Use a damp cloth for cleaning and not cleaning fluid or aerosols.
Such products could enter the unit and cause damage, fire, or electric shock. Some substances may also
mar the finish of the product.
Never open, remove unit panels, or make any adjustments not described in this manual. Attempting to
do so could expose you to dangerous electrical shock or other hazards. It may also cause damage to your
AT-PA100. Opening the product will void the warranty.
Do not attempt to service the unit. Disconnect the product and contact your authorized Atlona reseller or
contact Atlona directly.
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WARRANTY
Limited Warranty
Atlona Technologies warrants that (a) its products (the AT-PA100) will perform
substantially in accordance with the accompanying written materials for a period of 3 years from
the date of receipt and (b) that the product will be free from defects in materials and workmanship
under normal use and service for a period of 3 years. In the event applicable law imposes any
implied warranties, the implied warranty period is limited to 3 years from the date of receipt. Some
jurisdictions do not allow such limitations on duration of an implied warranty, so the above limitation
may not apply to customers that fall within those areas.
Customer Remedies
Atlona Technologies’ and its suppliers’ entire liability and Customer’s exclusive remedy shall
be, at Atlona Technologies’ decision, either return of the price paid for the product, repair, or
replacement of the product that does not meet this Limited Warranty and which is returned to Atlona
Technologies with a copy of the Customer’s receipt. This Limited Warranty is void if failure of the
product has resulted from accident, abuse, misapplication, or natural occurrence. In example but not
limited to: power surges (electrical storms, local power outage), dropping the product (or items on
the product), contact with fluids, and physical misconduct (i.e. kicking or punching). Any replacement
product will be warranted for the remainder of the original warranty period.
No other warranties
To the maximum extent permitted by applicable law, Atlona Technologies and its suppliers
disclaim all other warranties, either expressed or implied, including, but not limited to, implied
warranties of merchantability and fitness for a particular purpose, with regard to the product and any
related written materials. This Limited Warranty gives customer specific legal rights. Customers may
have other rights depending on the jurisdiction.
No liability for damages
To the maximum extent permitted by applicable law, in no event shall Atlona Technologies or
its suppliers be liable for any damages arising out of the use of or inability to use this product, even
if Atlona Technologies has been advised of the possibility of such damages. Such damages include
but are not limited to: special, incidental, consequential, or indirect damages for personal injury, loss
of business profits, business interruption, loss of business information, or any other pecuniary loss.
Atlona Technologies’ and its suppliers’ entire liability under any provision of this agreement shall
be limited to the amount actually paid by you for the product. Some Jurisdictions do not allow the
exclusion or limitation of liability for consequential or incidental damage. The above limitations may
not apply to you in such jurisdictional cases.
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ATLONA PRODUCT REGISTRATION
Thank you for purchasing this Atlona product. - We hope you enjoy it and will take an extra few
moments to register your new purchase.
Registration creates an ownership record if your product is lost or stolen and helps ensure you’ll
receive notification of performance issues and firmware updates.
At Atlona, we respect and protect your privacy, assuring you that your registration information
is completely secure. Atlona product registration is completely voluntary and failure to register will not
diminish your limited warranty rights.
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