GA2 Bogen General Purpose Amplifiers

Bogen Model GA2 is a rugged, compact 1.5-watt amplifier designed to meet the requirements of continuous low-power audio applications. It is ideally suited for telephone line "music-on-hold" amplification. It can also be used to drive monitor speakers, headphones, or as a line amplifier. With accessory transformer Model WMT1A connected to the input, the GA2 will provide amplification for a 600-ohm telephone line.
Model GA2 has a high-impedance input that is available at both a phono jack and screw terminals. Only 50 mV is required for full output. A choice of 8-ohm or 600-ohm output is provided. Low distortion, wide frequency response, and low hum and noise further contribute to excellent performance. A screwdriver-adjustable volume control is provided on the chassis.
The amplifier is compact and easily mounted on a wall or in any convenient location.

Specifications

• Power Output - 1.5 watts RMS
• Frequency Response - 200 Hz to 15 kHz +0 dB, -2.5 dB
• Total Harmonic Distortion - 2% @ 1.5W, 0.25% @ 1W
• Output Level - +6dBm (1.5V) across balanced 600 ohms
• Sensitivity - 50 mV
• Input Impedance - 100k ohms
• Hum and Noise - -72 dB below rated output
• Output Impedance - 8 ohms; 600 ohms balanced
• Control - Volume, screwdriver-adjustable
• Terminations
  • Output - Terminal strip
  • Input - RCA-type phono jack or terminal strip
• Power Consumption - 4W, 120V AC, 60 Hz
• Dimensions - 5-1/2" W x 4-1/8" H x 2-1/4" D
• Product Weight - 2 lb.

GA2 Specifications PDF

GA2 Manual