About the Atlas AA60
Background music and paging system
Background music and paging system
Atlas Sound's AA60 mixer amplifier provides power and distribution for background music and paging in a small or medium size office or business. The AA60 puts out up to 60 watts RMS for a regular 8-ohm speaker load or for multiple transformer-coupled speakers in a 70-volt distributed system. Three inputs — one microphone and two stereo pairs — let you play two different sources of music and make announcements.
You can set the AA60 so the music mutes when the microphone is on or when its button activates the remote trigger. You can also route any combination of inputs to a Zone 2 output for a second set of speakers or for music on hold (MOH) in a telephone system.
Helpful connections, controls, and indicators
The microphone channel has phantom power available, so you can use a condenser microphone if you want. "Pre Out" and "Amp In" connections allow the AA60 to work in conjunction with another amplifier or external audio device. The neatly laid-out front panel includes a volume control for each channel, along with bass and treble controls that can tweak the tone of the final mix. A Peak light indicates signal clipping, so you'll know to ease off the volume in order to maintain clean sound.
Atlas Sound AA60 rear connection and routing panel
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- amplified 3-channel mixer for commercial audio distribution
- output: 60 watts RMS x 1 at 8 ohms, 25 volts, and 70.7 volts
- Zone 2 output: 1 watt at 8 ohms, 1.5 volts at 600 ohms (for MOH)
- 3 inputs: one balanced microphone/line, two unbalanced stereo pair line
- dip switches for input routing, mute selection, phantom power, and low-cut filter
- remote and voice-activated mute
- individual input volume controls
- bass control: +/-10 dB at 100 Hz (shelving)
- treble control: +/-10 dB at 10K Hz (shelving)
- switchable low-cut filter (400 Hz, 6 dB/octave)
- "Pre Out" and "Amp In" loop plus two preamp outputs for external processors or amplifiers
- rear panel unswitched AC receptacle to power external gear
- dimensions: 8-5/16"W x 3-11/16"H x 10-7/8"D
- weight: 10.2 lbs.
- warranty: 3 years
- Our 60-day money-back guarantee
- MFR # AA60
What's in the box:
- Mixer-amplifier with attached power cord
- Owner's Manual
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More details on the Atlas AA60
Overview: The Atlas Sound AA60 is a three-input, 60-watt mixer-amplifier that is ideal for small businesses that use background music, paging, and music-on-hold. It can also be used for speech privacy systems. The amp can accommodate a variety of input sources, and can power a 4Ω speaker load, or 25V and 70.7V commercial speaker systems.
Inputs: The AA60 features a balanced microphone input (Input 1) that can also accept line level or telephone signals. Input 1 features a Phoenix (Euro Block) connector, and offers switchable Phantom Power (24VDC) if you are using a condenser mic. The two unbalanced (RCA) stereo inputs (Inputs 2 and 3) can accept a CD player, digital music receiver, or other music source. The stereo inputs are summed together to produce a mono signal.
Speaker Output: The amplifier has a terminal strip for the speaker outputs. There are connections for a 4Ω direct-coupled speaker load, or 25V and 70.7V transformer-coupled speaker systems. The 60-watt output works well with Atlas Sound's FAP, SM, SD, and GD-series loudspeakers.
Zone 2 Output: The AA60 features a Zone 2 output that can be assigned any of the three inputs, or configured as a mix of any or all of the input sources, for music or messaging on hold applications. There are two Zone 2 output terminals: a 1 watt @ 8Ω output (to an external speaker), and a transformer-isolated 600Ω output with a maximum level of 1.5VRMS (typically used for "music on hold"). A dedicated Zone 2 volume control is provided on the rear panel.
Pre Out/Line Out Jacks: The Pre Out (RCA) connector allows you to feed a signal to another power amplifier or external audio device. This signal is affected by the bass and treble controls, as well as the 400Hz low-cut filter, when engaged. An effects loop can be created by connecting the Pre Out jack to an equalizer or other device, and then back out to the Amp In connector.
Line Outputs: Line Outputs A and B are paralleled mono jacks that can provide an unbalanced, line-level signal to another amplifier or other external device. The line outputs are affected by the tone controls as well as the low-cut filter, when engaged.
Front Panel Controls: The front panel includes a master power switch (push button), and rotary volume controls for Inputs 1, 2, and 3. Rotary bass and treble controls (±10dB at 100Hz and 10kHz) are provided for the main and line outputs. The "zero" position for the tone controls is at the "12:00" position. Tone controls do not affect the Zone 2 outputs. There are LEDs to indicate the status of the System Signal, Peak, and Power.
Low Cut Filter: The AA60 has a switchable, 400Hz low-cut filter with a 6dB per octave slope. When paging horns are connected to the amplifier, it is recommended the low-cut filter be engaged to prevent low bass from entering the speakers. When the low-cut filter is engaged, the front panel bass control is bypassed.
Remote Mute: When the AA60 is used for background music with paging, it is necessary to temporarily mute the music when the paging announcement is made. The amp can be set to mute Input 2 or Input 3 when a contact closure is present on the remote mute terminals (Phoenix/Euro connector).
VOX Mute: You can also mute Input 2 or 3 when a signal is present on Input 1. The rotary Mute Sensitivity control on the rear panel lets you adjust how sensitive the mute send circuitry reacts. When the sensitivity is set to the lowest end of the control (fully counter-clockwise or "zero"), a higher amplitude signal is required on Input 1 to trigger the mute. At the highest end of the control (clockwise or "10"), a lower amplitude signal will trigger the mute.
Unswitched AC Outlet: An unswitched AC outlet is provided on the rear panel to power accessories (such as a rack work light) or other devices. The outlet is live whenever the power cord in plugged into an energized outlet. The maximum power draw of the outlet is 500 watts. The outlet is protected by a 4A circuit breaker.
DIP Switches: The versatile AA60 has 8 DIP switches on the rear panel that allow the amp to be configured in many ways. The DIP switch functions include:
|Zone 2 Assign||Mute Receive||Phantom||Input 1||Low Cut|
|Input 3||Input 2||Input 1||Input 3||Input 2|
Rack Mounting Options: The AA60 can be mounted in a standard equipment rack, using the optional AARMK2-5 rack mount kit for one or two units. The amplifier is 2U in height and 1/2-rack in width. If multiple AA60s are being stacked in the rack, you should install 1U vented panels (Atlas Sound SVP19-1-052) between the amps to aid in cooling. The rack kits and vented panels are available directly from the manufacturer.
- Frequency Response: 50Hz - 20kHz
- Output Power: 60 watts
- Dimensions: Width: 8.27", Height: 3.66", Depth: 10.875"
- Weight: 10.2 pounds
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