Atlas DPA-AMIX User manual

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 1 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
DPA-AMIX
4 Input Analog Mixer Accessory Card

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 2 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Table of Contents
Important Safety Instructions.....................................................................................................................3
Introduction .................................................................................................................................................. 5
Key Features................................................................................................................................................. 5
Applications.................................................................................................................................................. 6
Front Panel Description...............................................................................................................................7
DIP Switch Settings .....................................................................................................................................8
Accessory Card Installation .......................................................................................................................9
DPA Setup ....................................................................................................................................................10
Specifications..............................................................................................................................................11
Warranty.......................................................................................................................................................12

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 3 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Important Safety Instructions
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this device near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other device
(including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10.Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the device.
11.Only use attachments/accessories specified by the manufacturer.
12.Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with
the device. When a cart is used, use caution when moving the cart/device combination to avoid
injury from tip-over.
13.Unplug this device during lightning storms or when unused for long periods of time.
14.Refer all servicing to qualified service personnel. Servicing is required when the device has been
damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled, or
objects have fallen into the device, the device has been exposed to rain or moisture, does not
operate normally, or has been dropped.
15.WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture.
16.The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such
as vases, shall be placed on apparatus.
17.The mains plug is used as a disconnect device. The mains plug of the apparatus should not be
obstructed OR should be easily accessed during intended use. To completely disconnect the
power input, the mains plug of apparatus shall be disconnected from the mains.
18.This product shall be connected to a mains socket outlet with a protective earthing connection.
The lightning flash with arrowhead symbol within an equilateral triangle,
is intended to alert the user to the presence of uninsulated “dangerous
voltage “ within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 4 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Warning When The Device Is In Use
• To prevent electric shock, do not remove the product cover as there are high voltage components
inside. Refer all servicing to Atlas Sound.
• Should any of the following irregularities occur during use, immediately switch off the power,
disconnect the power cord from the AC outlet and contact Atlas Sound. Do not to attempt to
continue operation with the product as this may cause fire or electric shock:
• Smoke or strange smell coming from the unit.
• If the product falls or the case is damaged.
• If water or any metallic objects falls into the product.
• If the power supply cord is damaged in any way.
• If the unit is malfunctioning.
• Do not insert or drop metallic objects or flammable materials into the ventilation holes of the
product's cover, as this may result in electric shock or fire.
• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid
spills into the unit, fire or electric shock may result.
• Never operate this product or touch the power supply cord during an electrical storm, electric
shock may result.
• Never exceed the power rating on the product when connecting equipment. Fire and/or property
damage may result.
• Operate the product only with the voltage specified on the unit. Fire and/or electric shock may
result if a higher voltage is used.
• Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to
heaters and do not place heavy objects on the power cord, including the product itself, doing so
may result in fire or electrical shock.
• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground
to a gas pipe as a catastrophic disaster may result.
• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and
cause injury or property damage.
Caution When Installing The Product
• Plugging in or unplugging the power cord with wet hands may result in electric shock.
• Never move the unit with the power cord plugged into the wall, as damage to the power cord may
result.
• When unplugging the cord from the wall, grasp the plug, NOT the cord.
• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat,
or in areas where sooty smoke or steam are present. Fire and electric shock may result.
• Keep all sides of the unit at least 31⁄2" away from objects that may obstruct air flow to prevent the
unit's internal temperature rise.
Caution When The Product Is In Use
• Never place heavy objects on the product, causing it to fall and/or break, resulting in personal
injury and property damage. In addition, the product itself may fall and cause injury and property
damage.
• Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of
dust inside the unit may result in heat buildup and fire.
• Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to
accumulate on the power plug or inside the wall outlet.
• When cleaning the unit or the unit is not to be operated for an extended period, unplug the power
cord from the wall.

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 5 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Introduction
The DPA-AMIX accessory card is designed to work in conjunction with DPA Series amplifiers that
include a rear panel accessor card slot. The unit features 4 inputs, two mic/line inputs and two
auxiliary line inputs. The mic/line inputs are user selectable and include Phantom power, 120Hz
Hi Pass filter and a variable limiter on both inputs. The two auxiliary inputs feature a mono active
summing circuit that gives the ability to connect two stereo sources to the amplifier simultaneosly. All
inputs have separate level controls and signal and clip LEDs.
DPA-AMIX Features
• 2 Balanced Mic / Line Input
• 2 Summed Mono or 1 Stereo or AUX Line Inputs
• Switchable 24V Phantom Power
• 2 Variable Input Limiter on Mic Inputs
• Assignable 120Hz / 12dB Hi-Pass Filter for Mic / Line Inputs
• Recessed Level Controls
• Input Signal & Clip Indicator LEDs

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 6 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Applications
The DPA Series amplifiers DSP features combined with the DPA-AMIX converts the DPA amplifiers
into 8 x 4 zone matrix mixer amplifier. The amplifier DSP function allows for signal routing along
with priority muting via VOX sensing or contact closures making the DPA Series amplifier the go to
solution for a variety of applications.
• Restaurants
• Sports Bars
• Schools
• Industrial Facilities
• House of Worship
Below is an illustration of one of many applications the DPA-AMIX is suited for.

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 7 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Front Panel Description
1. Input 5 & 6 Mic / Line Input - To select between microphone and balanced line input refer to the
Input Switch setting section. For connecting an unbalanced signal to the line input, the (-) pin
needs to be connected to the Ground (G) pin.
2. Input 5 & 6 Level Control - Rotate clockwise (+) to increase level.
3. Input 5 & 6 Signal / Clip LED - Will illuminate Green when signal is present and Red when an
excessive input signal is present. An occasional Red blink is ok, but if the LED is RED constantly
the source signal needs to be reduced. Note: The signal and clip LEDs are PRE the input
level controls, meaning the LEDs will illuminate even if the input level control is turned down or (-).
4. Input 5 & 6 Limiter Threshold Control - These controls adjust the maximum signal level allowed
 toreachtheamplierchannel.Thiscontroladjustswherethelimiterthresholdstartsto 
reduce the output level. Rotate clockwise (+) to make the limiter reduce the output levels. Rotate
counterclockwise to reduce the sensitivity, thus letting larger signal “Peaks” through to the
output. See also “Limiter LED” for more information.
5. Input 5 & 6 Limiter LED - Adjustment of the Limiter feature should be done after the input gain
or level has been properly set. The limiter when set correctly will limit the amount of level to the
 amplierevenunderextremesignalpeaks.AdjustthelimitercontrolsothelimiterLEDjustbegins
 toashYellowduringmaximumlevels.WhenilluminatedtheLEDindicateswherethethresoldof 
signal reduction begins.
6 77 12
3
4
5
2
3
4
5

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 8 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Front Panel Description
6. Input 7 & 8 Auxiliary Source-Therearetwowaysofconguringthiswiring.
• Two Sources With A Summed Mono Signal - For connecting two stereo sources with a resulting
 monosignaltotheamplier,connecttheRightoutput(+)ofthesourcetothe(R)inputterminalof
Input 7 and the Left output (+) of the source to the (L) input terminal of Input 7 and the ground
connection of the source output to the Input (G) terminal. The right and left signals will be
electronically summed into one mono signal. Repeat these steps for Input 8.
• Single Stereo Source-FeedingastereosignaltotheamplierwillrequiretheuseofbothInputs7
and 8. Connect the Right output (+) of the source to the (R) input terminal of Input 7 and the
Left output (+) of the source to the (L) input terminal of Input 8 and the ground connection of the
source output to the Input (G) terminal. Note: Input 7 (L) and Input 8 (R) terminals are not used, NO
CONNECTION.
7. Panel Mount Holes-TherearetwoholesforscrewstosecuretheDPA-AMIXtotheamplier 
chassis. Only use M3 x 8MM screws.
DIP Switch Settings
BeforeinstallingthecardintotheampdeterminehowInputs5and6willfunction.ConguretheDip
Switches to the installation requirements then install the card.
DP SW 1 - Input 6 Mic Line Selection. Up for Line Mode and Down for Mic ON
DP SW 2 - Input 5 Mic Line Selection. Up for Line Mode and Down for Mic ON
DP SW 3 - Input 6 Phantom Power. Up for Off and Down for ON
DP SW 4 - Input 5 Phantom Power. Up for Off and Down for ON
DP SW 5-Input6120HzHiPasslter.UpforOff(Flat)andDownforON(Active)
DP SW 6-Input5120HzHiPasslter.UpforOff(Flat)andDownforON(Active)

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 9 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Accessory Card Installation
Contact Atlas Sound for a list of accessory cards. Note: Accessory card installation must be done by
aqualiedtechnician.
1. Remove the DPA amplier from the AC mains source. Note: In standby mode there are DC
voltages present. The the DPA amp must be removed from the AC Mains source in order to
 preventdamagetothecardoramplier.
2. Remove the two screws (M3 x 8mm Pan Head Black) holding the DPA Accessory blank panel. Be
careful, do not lose the screws.
3. Remove the ribbon cable from the cover plate.
4. Connect the accessory card to the ribbon cable by carefully aligning the ribbon cable connector to
the mating PCB connector. Do not force. If aligned correctly the cable will mate easily.
5. Carefully guide the accessory card into the slot without forcing the PCB or cable.
6. Afterthecardisinsertedandtheaccessorypanelisushtothechassis,alignthetwoscrews 
holes and secure them together by inserting two M3 x 8mm screws.

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 10 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
DPA Setup after DPA-AMIX Installation
1. PleasereadtheDPAmanualforaccesstotheDPASeriesamplierscontrolGUIinterface.After 
you have access to the GUI proceed to step #2.
2. IntheSetuppagegototheAmplierCongurationTab.Onthispageselectthebox“Enable 
Accessory Inputs”
3. Go to the I/O Router page and route Inputs 5-8 to an output.
4. Priority Mute functions & Remote Level can be assigned in the “Mute, Link & Port” page.
DPAAmplierCongurationPage
(Select Enable Accessory Inputs)
Mute, Link, and Port Page
(Select Mute Function if Required)
DPA Setup Page
(SelectAmpCongPage)
I/O Router Page
(ConrmOnI/ORouterPage,
Fader Knobs are Present)

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com– 11 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Specications
Type 4 Input Analog Mixer Card for the DPA Series Amplifiers
Inputs 5 & 6
Type Balanced Mic or Line Selectable
Connection Removable 3 Position Captive Screw 3.5mm Spacing
Impedance 1.2KΩBal, 600 Unbalanced
Line Input Senstivity 0dBu (775mV) Balanced
Mic Input Sensitivity -37dBu (10mV)
Mic Gain 34dBu
Inputs 7 & 8
Type Unbalanced, Activily Summed
Connection Removable 5 Position Captive Screw 3.5mm Spacing
Impedance 10KΩ
Input Sensitivity -10dBV (316mV)
Controls
Input Level Control Qty 4, Recessed Rotary Potentiometer , Inputs 5,6,7,8
Limiter Threshold Control Qty 2, Inputs 5 & 6, Recessed Rotary Potentiometer
Indicators
Signal Bi-Color, Qty 4, Illuminates Green, 30mV On Threshold,
PRE Level Control
Clip Bi-Color, Qty 4, Illuminates Red, PRE Level Control
Limit Qty2,IlluminatesYellowonLimitThresold
Assignable Functions (PCB DIP Switch)
Hi Pass Filter Qty 2, 120Hz/12dB, DIP SW Aissign to Inputs 5 & 6
Mic / Line Qty 2, DIP SW Aissign to Inputs 5 & 6
Phantom Qty 2, DIP SW Aissign to Inputs 5 & 6
Electrical Specifications
Frequency Response 20Hz - 20KHz +/- 1dB
THD .06% @ 1KHz
Inputs 5 & 6 Max Line Input Level 12.5dBu (3.3V) Balanced
Inputs 5 & 6 Max Mic Input Level -23dBu (52mV)
Inputs 7 & 8 Max Input Level 12.5dBu (3.3V) Balanced
Phantom Power +/- 15DCV
Mechanical
Dimension H 0.97" x W 4.7" x D 2.5" (H 24.6mm x W 119mm x D 63mm)
Weight 2.6oz (.07kg)
Color Black
Material Steel

Owner’s Manual
DPA-AMIX
4 Input Analog Mixer Accessory Card
AtlasSound.com – 12 –
Specifications are subject to change without notice.
1601 Jack McKay Blvd. • Ennis,Texas 75119 U.S.A.
Telephone: [phone] • Fax: [phone]
Limited Warranty
All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or
commercial purchaser to be free from defects in material and workmanship and to be in compliance
with our published specifications, if any. This warranty shall extend from the date of purchase for
a period of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS
SOUND brand products except as follows: one year on electronics and control systems; one year on
replacement parts; and one year on Musician Series stands and related accessories. Additionally,
fuses and lamps carry no warranty. Atlas Sound will solely at its discretion, replace at no charge or
repair free of charge defective parts or products when the product has been applied and used in
accordance with our published operation and installation instructions. We will not be responsible
for defects caused by improper storage, misuse (including failure to provide reasonable and
necessary maintenance), accident, abnormal atmospheres, water immersion, lightning discharge,
or malfunctions when products have been modified or operated in excess of rated power, altered,
serviced or installed in other than a workman like manner. The original sales invoice should be
retained as evidence of purchase under the terms of this warranty. All warranty returns must comply
with our returns policy set forth below. When products returned to Atlas Sound do not qualify for
repair or replacement under our warranty, repairs may be performed at prevailing costs for material
and labor unless there is included with the returned product(s) a written request for an estimate
of repair costs before any nonwarranty work is performed. In the event of replacement or upon
completion of repairs, return shipment will be made with the transportation charges collect.
EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL
DAMAGESFORPERSONALINJURY,ATLASSOUNDSHALLNOTBELIABLEINTORTORCONTRACT
FORANYDIRECT,CONSEQUENTIALORINCIDENTALLOSSORDAMAGEARISINGOUTOFTHE
INSTALLATION,USEORINABILITYTOUSETHEPRODUCTS.THEABOVEWARRANTYISINLIEUOF
ALLOTHERWARRANTIESINCLUDINGBUTNOTLIMITEDTOWARRANTIESOFMERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE.
Atlas Sound does not assume, or does it authorize any other person to assume or extend on its
behalf, any other warranty, obligation, or liability. This warranty gives you specific legal rights and
you may have other rights which vary from state to state.
Service
Should your DPA-AMIX require service, please contact the Atlas Sound
warranty department at 1-877-689-8055, ext. 1274 to obtain an RA number.
Atlas Sound Tech Support can be reached at 1-800-876-3333.
Visit our website at www.AtlasSound.com to see other Atlas products
©2015 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P.
All other trademarks are the property of their respective owners. ATS005327 RevA 10/15