Our Products         SLA series       Active Speaker Cabinet       Studio Monitor       Speaker Cabinet       EQ & Amplifier       Portable Speaker       Guitar/Bass Amplifier   GP Series GC Series   Mixer       Popstar       VA serise       Ultra Portable Speaker     GUITAR/BASS AMPLIFIER >>>GC series               GC5G/10G/20G/30G       GC5G/10G/20G/30G guitar amplifier specifications GC GC5G GC10G GC20G GC30G Volume Pre-gain Pre-gain Pre-gain Pre-gain Tone treble,bass treble,bass treble,bass treble,bass Overdrive with with with with Channel guitar,CD input guitar,CD input guitar,CD input guitar,CD input Power 5W 10W 20W 30W Reverberation spring spring spring spring Headphone jack with with with with Speaker 5" 6.5" 8" 8"