Yamaha THR5A Combo Acoustic Guitar Amplifier. The Yamaha THR5A Combo is a 10W (5W+5W) stereo amplifier for acoustic guitar with condenser, tube and dynamic microphone simulations, integrated effects, chromatic tuner, headphone output, Aux In, USB, 2 8cm Full Range speakers. It is equipped with the Cubase AI application for audio recording, editing and mixing, and the THR editor is also available on the Yamaha website, which allows you to manage the parameters of the amps and effects from the
computer.