From AER: The AER Compact 60 rev.3 amplifier features an unbeatable combination of size, power, and sound quality. Nicknamed "Bingo," the Compact 60 is only 18lbs, making it is one of the lightest acoustic amps on the market. Don't be fooled by the power rating as the 60 watts that this amp produces are far more efficient than most other amps. The Compact 60 is louder than most amps rated at 200 watts. An amp designed to meet the needs of the acoustic guitarist: The preamp section is designed to "soften" the harsher qualities produced by most piezo pickups. In this regard it is a "miracle amp" as it seems to tame even the most unruly pickup systems, making them sound clean and natural. It is a simple to use "plug and play" amp which requires little expertise from the user. Most players find they spend far less time adjusting the tone controls with this amp as it usually sounds perfect when set flat. The Compact 60 is played by the world's top professional guitarists: The outstanding performance of the Compact 60 has won it admirers the world over. Great acoustic guitarists such the legendary Tommy Emmanuel and John Renbourn perform with the Compact 60. Among Gypsy jazz guitarists, the Compact 60 has become the choice for amplification. Stochelo Rosenberg, Romane, Bireli Lagrene, Dorado Schmitt, and so many other greats of the style use this amp. Although marketed as an "acoustic amp," the Compact 60 is used by many archtop jazz guitarists. Gene Bertoncini, Jack Wilkins, Russell Malone, and Martin Taylor have replaced much larger tube amps with the light weight and great sounding Compact 60! An acoustic amp loaded with useful features: The Compact 60 has two input channels, one of which is a line input and the other a combination line/mic input. Many utilize these multiple channels to run dual pickup systems and/or microphones or you can even have two individual musicians performing through the same amp!