Bogen Communications ASM1
Easy Install Self-Amplified Ceiling Speaker


The Bogen ASM1 Easy Install® Self-Amplified Speaker is a surface-mount speaker, designed to typically install in less than a minute. Installation is a simple, three-step process that does not require tools. First, four specially-designed studs pierce the ceiling tile. Second, two custom-designed wing nuts secure the speaker to the ceiling. Third, standard wire nuts make the 24V DC power and audio connections directly to the color-coded studs. The ASM1 is lightweight, durable, and features a lowprofile contemporary design, making it versatile enough to be installed in just about any installation with standard ceiling tiles.

The ASM1 is a 1-watt, self-amplified speaker. There is an exterior volume control for easy balancing that is easily accessible, but doesn’t attract tampering.


  • Installs in less than a minute
  • Self-contained 1W amplifier
  • High intelligibility and sensitivity
  • Wide-range frequency response
  • Direct and reflected sound paths create wide
  • dispersion angle
  • Lightweight and durable plastic shell with an off-white, paintable finish
  • Simple, three-step installation process
  • No tool(s) installation
  • Color-coded mounting studs identify polarity to make the power and audio connections easier (no external wires)
  • Front-mounted volume control for easy access
  • Transformer-isolated, balanced audio input
  • Can be installed in any drop ceiling with standard ceiling tiles


  • Power Rating (max.): 1W
  • Frequency Response: 125 Hz – 15 kHz
  • Sensitivity (min.): 90 dBspl, 125 mV input (1W @ 1M on axis)
  • Supply Voltage Range: 12 – 30V DC
  • Typical Current Units: -1 CU (50 mA)
  • Idle Current: 5 mA (nominal)
  • Input Sensitivity: 125 mVrms
  • Input Impedance: 2k ohms
  • Dispersion (min.): 120°
  • Controls: Volume control
  • Cone: 4" Speaker cone
  • Magnet Weight: 6 oz.
  • Product Weight: 2 lb.
  • Shipping Weight: 3 lb.
  • Diameter: 9-1/2"
  • Height: 3"
  • Base Diameter (against ceiling): 8-3/4"
  • Construction: ABS Plastic
  • Flame Rating: 94-5VA
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