... control system, which is versatile for all style GF-30 Guitar vintage amplifier have solid amp body, 3-band ... !SpecificationOutput: 30 watts into 8 ohmsControls: Gain, Drive Switch, Treble, Middle,Bass, Length Depth, VolumeFeatures: Headphone Jack, Output Jack,Double Input Jack, Digital ... reverbSpeakers: 8"- 8 ohm SpeakerColor:Dark RedMeas. (cm):44.5*24.5*42G.W./Ctn (Kgs):13.1KG GF-30 ...