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AtlasSound.com

Specifications are subject to change without notice.

Owner’s Manual

AA240 Mixer Amplifier

1601 Jack McKay Blvd. • Ennis, Texas 75119  U.S.A.

Telephone: 800.876.3333 • Fax: 800.765.3435

WARNING – When the Device is in Use

 

•   To prevent electric shock, do not remove the device 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 device as this may cause fire or electric shock:

 

   

Smoke or strange smell coming from the unit.

 

   

If the device falls or the case is damaged.

 

   

If water or any metallic objects falls into the device.

 

• 

   

If the power supply cord is damaged in any way.

 

   

If the device is malfunctioning.

   

Do not insert or drop metallic objects or flammable materials into the ventilation holes of the device'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 device.  
If any liquid spills into the unit, fire or electric shock may result.

   

Never operate this device or touch the power supply cord during an electrical storm, electric shock may result.

   

Never exceed the wattage on the product when connecting equipment. Fire and/or property damage may result.

   

Operate the device 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 device 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 the Device 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 time period, unplug power cord  
from the wall.

Содержание AA240

Страница 1: ...d com Specifications are subject to change without notice Owner s Manual AA240 Mixer Amplifier 1601 Jack McKay Blvd Ennis Texas 75119 U S A Telephone 800 876 3333 Fax 800 765 3435 AA240 Atlas Sound Mixer Amplifier ...

Страница 2: ...nstructions 3 Introduction Features and Applications 6 Front Panel Description 7 Rear Panel Description 8 11 Quick Start Examples 12 14 Wiring the AA240 15 Load Consideration and Overload LED 15 Measuring Speaker Loads 16 Measuring 25V 70 7V Distributed Speaker Systems 16 Security Covers Option 17 Wiring the AAVCC 10K VCA Potentiometer 17 AA240 Block Diagram 18 Optional Input Transformer Installat...

Страница 3: ...oving 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 ex...

Страница 4: ...may result When unplugging the cord from the wall grasp the plug NOT the cord Never install this device 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 device at least 31 2 away from objects that may obstruct air flow to prevent the unit s internal temperature rise Am...

Страница 5: ...ical storm electric shock may result Never exceed the wattage on the product when connecting equipment Fire and or property damage may result Operate the device 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...

Страница 6: ...nstaller in today s commercial business audio environment Features Zone 1 Output 240 Watts Zone 2 Output 1 Watt 8Ω or 1 5V 600Ω Inputs 1 5 Mic Line Switchable Input 6 Line Level Only Input 1 has VOX Send Inputs 2 6 have Switch Selectable Mute Receive 2 Tape and 2 Line Outputs Remote VCA Selectable INPUT 6 or MASTER Switch Selectable Bridge In Out Bus Allows Amplifier Combining Pre Amp Out Power Am...

Страница 7: ...e speakers 5 Signal LED This LED will assist you in setting gain structure into the amp With a source connected to the amp and playing turn up the chan nel gain control until this LED just starts to flash green Once all the sources connected are playing the SIGNAL LED may be on solid This condition is normal 6 Master Gain Control The MASTER GAIN CONTROL will raise or lower all the input channels t...

Страница 8: ... and Mic modes In some Line source input application the Phantom Power may cause popping This can be corrected by adding a 10uf 100uf 50V electrolytic capacitor in series with the input Contact Atlas for an application note Dipswitch 8 When set to the Master position the VCA control port acts as an overall system remote volume control adjusting all the input channels present on the master section ...

Страница 9: ...gether G to M the assigned channels will be muted Note Input 1 cannot be VOX or remote muted at anytime Dipswitches 2 5 settings determine which inputs are to receive the Mute trigger To trigger the mute it is common to use an external contact closure or switch on a microphone 17 Zone 2 Output 600Ω The 600Ω 1 5V Zone 2 Out output is typically connected to a PBX MUSIC ON HOLD port also known as MOH...

Страница 10: ...ng a 10uf 100uf 50V electrolytic capacitor in series with the input Contact Atlas for an application note 23 Input 6 INPUT 6 consists of a pair of stereo summing line level inputs Connect unbalanced audio outputs here such as CD players or audio from DVD players 24 Line Out A B The LINE OUT connector is useful for providing unbalanced line level signal to another amplifier or other external device...

Страница 11: ...otal load impedance of no less than 2 6Ω 70 7V Connect to transformer coupled 70 7V loudspeakers with a total load impedance of no less than 21Ω 100V Connect to transformer coupled 100V loudspeakers with a total load impedance of no less than 41 6Ω 29 Power Cord Connect the power cord to 120VAC only Serious damage may result if accidentally connected to other line voltages 30 Unswitched Outlet The...

Страница 12: ...2 output to the MOH input on your telephone Adjust the Zone 2 Output level as needed Connect a wall mount volume control Atlas Part Number AAVC 10K to the terminals marked VCA Set Dipswitch B 8 VCA to Master Dipswitch Settings Dipswitch 1 Off Set To The Required Gain Dipswitch 2 Off Not Affected Dipswitch 3 Off Not Affected Dipswitch 4 Off Not Affected Dipswitch 5 Off Line Dipswitch 6 On Mic Dipsw...

Страница 13: ... and DPST switch see drawing for clarity controls the background music level and turns the music on or off in each room For emergency evacuation pur poses a signal from the hotel s fire alarm system is connected to channel 1 of both amplifiers with the mute sensitivity adjusted as needed All other channels are set for mute receive and will mute when the siren tone is present on channel 1 Dipswitch...

Страница 14: ... Type Dipswitch 8 Master Dipswitch 1 On Dipswitch 2 On Dipswitch 3 On Dipswitch 4 On Dipswitch 5 On Dipswitch 6 On 10 0 10 0 0 10 On Off Input 6 Input 5 Input 4 Input 3 Input 2 10 0 10 0 10 0 Bass Treble 0 10 Input 1 Master Power Power Limit Peak Signal VCA In Out Bridge Sel Zone 2 Out Ω 1W 8 Ω 600 Remote Mute Input 2 Trim Input 3 Trim Input 5 Input 6 Off On Off On Off On Off On Input 2 On Off Lin...

Страница 15: ...ED on damage may occur Refer to page 16 of manual for protect conditions In most situations when the LED is illuminated it means the speaker system load to the amp is lower than what the amp is rated for This usually is detected when you first are setting up the system Below are a few load conditions to check for if the Protect light is on 1 Connected to the wrong speaker terminal Always check the...

Страница 16: ...volume controls There are several Audio Impedance meters on the market if you need to buy one we suggest going to MCM Electronics or search the internet for Audio Impedance Meter Measuring 25V 70 7V Distributed Speaker Systems Large distributed systems typically utilize 25 2V or 70 7V transformers 50V and 100V in Europe to greatly ease the connection of multiple speakers and facilitate long cable ...

Страница 17: ...the pot terminals to the terminals marked VCA on the back of the amp 10 0 10 0 0 10 On Off Input 6 Input 5 Input 4 Input 3 Input 2 10 0 10 0 10 0 Bass Treble 0 10 Input 1 Master Power Power Limit Peak Signal VCA In Out Bridge Sel Zone 2 Out Ω 1W 8 Ω 600 Remote Mute Input 2 Trim Input 3 Trim Input 5 Input 6 Off On Off On Off On Off On Input 2 On Off Line Mic Line Mic Line Mic Sens Input 1 Input 2 I...

Страница 18: ...MIC MUTE PRE TRIM CHANNEL 3 IN 3 LEVEL LINE PHANTOM MIC MUTE PRE TRIM CHANNEL 4 IN 4 LEVEL LINE PHANTOM MIC MUTE PRE TRIM CHANNEL 5 IN 5 LEVEL LINE PHANTOM MIC MUTE PRE TRIM IN 6 LEVEL 100mV 300mV MUTE PRE AMP IN PRE PRE BRIDGE IN OUT SELECT ACTIVATE MASTER LEVEL LINE OUT A B 70 7V ZONE 2 LEVEL VCA VCA BASS TREBLE FILTER Input 6 Off On Off On Off On Off On Input 2 On Off Line Mic Line Mic Line Mic...

Страница 19: ...1601 Jack McKay Blvd Ennis Texas 75119 U S A Telephone 800 876 3333 Fax 800 765 3435 Optional Input Transformer Installation Contact Atlas Sound at 1 800 876 3333 for price and availability INPUT 1 TRANSFORMER JUMPERS INPUT 1 OPTIONAL TRANSFORMER SOCKET XFMER IN XFMER BYPASS XFMER IN XFMER BYPASS p n AAIT 600 ...

Страница 20: ...Distortion 1 at rated power 1kHz Sensitivity Input 1 Line Tel 316mV 10dBV 10kΩ 600Ω with optional transformer Mic 316mV 3 16mV 50dBV 70dBV Inputs 2 5 Line 316mV 10dBV 10kΩ Mic 316mV 3 16mV 50dBV 70dBV Input 6 Line 300mV 100mV 10dBV 20dBV Selectable Outputs Main Transformer coupled balanced 4Ω 25V 70V and 100V Zone 2 8Ω Unbalanced 1W Zone 2 600Ω Balanced 1 5V Signal To Noise Ratio Mic 55dB Line 55d...

Страница 21: ... 21 AtlasSound com Specifications are subject to change without notice Owner s Manual AA240 Mixer Amplifier 1601 Jack McKay Blvd Ennis Texas 75119 U S A Telephone 800 876 3333 Fax 800 765 3435 Notes ...

Страница 22: ...AtlasSound com 22 Specifications are subject to change without notice Owner s Manual AA240 Mixer Amplifier 1601 Jack McKay Blvd Ennis Texas 75119 U S A Telephone 800 876 3333 Fax 800 765 3435 Notes ...

Страница 23: ... 23 AtlasSound com Specifications are subject to change without notice Owner s Manual AA240 Mixer Amplifier 1601 Jack McKay Blvd Ennis Texas 75119 U S A Telephone 800 876 3333 Fax 800 765 3435 Notes ...

Страница 24: ...rms 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 perfor...

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