Actually not the first system the Alpha defines the starting point of serious acoustic amplification at AER. Based on the success and the experience with the Compact 60 we have developed a even smaller lightweight model that has no difficulties living up to the rigors of the road.Reduced to the Max, along with the AER typical quality standards - without renunciation of what is essential for superb performance - the Alpha is a full size member of the AER product family.- 40W- HP 8- digital reverb - Dimensions: 26 x 26.5 x 23.5 cm- Weight 6.5 kg- Black