Atlas Sound AA30PHD 3-Input, 30W BGM Mixer Amplifier w/ Automatic System Test - USED

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The Atlas Sound AA30PHD is the perfect choice for distributed business paging and background music (BGM) systems, small to medium speech privacy systems, and in applications where music on hold (MOH) plus paging is required.

The AA30PHD is a three input channel mixer amplifier designed for distributed business paging and background music (BGM) systems, small to medium speech privacy systems, and in applications where music on hold (MOH) plus paging is required. With one microphone/line input and two stereo line inputs, the AA30PHD will accommodate a variety of input sources including paging microphones, media players, and digital music receivers. The AA30PHD includes a patent pending automatic system test, the Push Here Diagnostic (PHD). The PHD button is designed to check the connected speaker lines for wiring and impedance errors. This test can be activated once all speakers are connected and the circuit automatically verifies that the attached speakers' tap settings do not exceed the amplifier's rated power, no speakers are mistakenly tapped at 8Ω, and the speaker wire is free from shorts. The AA30PHD provides 30-watts output power into 25V, 70.7V, or 4Ω speaker systems. Rear panel DIP switch allows for creation of Zone 2 output using either Input 2 or Input 3. Unit can also be set-up to mute Inputs 2 and 3 based on signal from Input 1 for paging applications where other input sources need to be muted during a page. Input 1 is either Mic or Line input selectable and Phantom Power is an option when using Input 1 Mic input.

  • 30W into 25V/70.7V and 4Ω Loads
  • Rear Mounted DIP Switch Allows Mute Receive for Inputs 2 and 3
  • Contact Closure Mute Terminals
  • Variable Mute Sensitivity Control for Input 1
  • Two Unbalanced, Summing Line Level Inputs
  • Balanced Mic/Line/Tel Input w/ Phantom Power
  • Automated Diagnostic System Test (Push Here Diagnostic)

Frequency Response 80 Hz to 15 kHz ± 3 dB
THD & Noise 1% or less @ 1 kHz, rated output
Input Sensitivity and Impedance Input 1: Mic mode 5 MV, no trim, 1200 ohms
Input 1: Line mode 316 MV (-10 dBV) 1200 ohms
Inputs 2 and 3: 316 MV (-10 dBV) 10 kOhms
Signal / Noise Mic > 55 dB
Line > 55 dB
Telephone > 55 dB
Inputs 2 and 3 > 75 dB
Phantom Power 24 VDC
Input 3-position Phoenix 3.5mm pitch
Power Output 30 W RMS at 4 ohms
Transformer Outputs 25 V @ 30 W RMS
70.7 V @ 30 W RMS
4 ohms @ 30 W RMS
Front Panel Power Switch: Push type
Indicators: Signal, peak, limit, and power
PHD Test Circuit: Push momentary
Level Controls: inputs 1 through 3
Rear Panel I/O & Controls Inputs
  • 1x 3-position PHX type mic / line-balanced, 3.5 mm pitch
  • 2x RCA auxiliary unbalanced
  • Main: Transformer coupled, balanced, 4 ohms, 25 V, and 70.7 V. Class 2 rated, removable four-Position PHX, 5.08 mm pitch. Accepts up to 12 gauge wire, 12 A rating
  • Zone 2: Unbalanced 600 ohms / 10 kOhms, max 1.0 V out, removable two-position PHX, 3.5 mm pitch. Accepts up to 18 gauge wire, 8 A rating
Tone controls
  • Bass: ±6db @ 100 Hz
  • Treble: ±6db @ 10 kHz
  • Vox Sensitivity: Pot rotary, range 500 UV to 200 MV
  • Remote Mute: Contact closure, two-position phoenix, 3.5mm pitch



Control Switch Functions
  • Zone 2 Assign: Inputs 2 and 3
  • Mute Receive: Inputs 2 and 3
  • Phantom Power: Input 1
  • Mic line Select: Input 1
Power Requirements AC Mains: 120 V 60 Hz
AC Cord: 2 M, 18 gauge, NEMA 5-20 P
Idle Power: 7.6 W, .70 mA. 25 BTU
Average Power (1⁄3 Rated Output): 55 W, .55 mA. 187 BTU
Max Power (20 mS Burst) 85 W, .83 A, 290 BTU
Chassis Steel
Finish Black paint on front and top
Power Requirements United States: 120 VAC, 60 Hz
Dimensions (H x W x D) 8.27 x 3.66 x 10.87" / 210 x 93 x 276 mm
Weight 9 lb / 4.1 kg
Packaging Info
Package Weight 11.3 lb
Box Dimensions (LxWxH) 13.9 x 11.6 x 7.2"

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