The Alpha plus is the same amplifier as the AER Alpha in a larger package. This changes the tone, it has more bottom-end. Two input stages: for instruments and e.g. high quality condenser microphones. Input one provides 48-V phantom power 8 "twin-cone speakers and 40 watts are perfect for every rehearsal room and on smaller club stages. High-end DI-out to the FOH system Reverb as an onboard effect 8 kg light weight, transportable in public transport as well as hand luggage on airplanes. All AER amplifiers are deliverd with high quality padded Gigbag. The weight includes: Amplifier, bag, cable, manual. Recommended are:Acoustic guitar, voice, short attack instruments such as ukulele, mandolin, banjo, violin, harmonica, voice ... That's what Seb Goldswain saysAustralia, singer / songwriterMy AER Alpha plus and my Pocket Tools Dual Mix 2, are as integral to my live rig as any guitar I use. Whether it's on large festival stages or in small clubs, sound engineers are always impressed with the AER sound. I plug in and feel inspired to give my audience everything I've got. I cannot imagine doing a show without my AER!