... features a powerful speaker specified tone control system, CE&RoHS GF-15 Guitar music system amplifier have solid amp body, 3-band ... Flanger amp features a powerful speaker and specified tone control system, which is versatile for all styles. It delivers crystal clean ... you want. You can even output your signal to PA system for amplifying!SpecificationGF-15Output: 15 watts into 8 ohmsControls: Normal ...