This amp is in excellent working order. This amp is a 50 watt, all tube Jackson built in England back in the eighties, Jackson hired Laney Amplifiers to make a few amps for them, namely the JG-2 50 watt, and the JG-3 100 watt. A few hundred amps later, Jackson called it quits, and stopped selling these amps. Needless to say these are very rare. It has 2 EL34 power tubes and 4 12ax7 preamp tubes giving the amp nice warm tube tone. This amp has both low gain and high gain inputs. On the control panel, besides the 2 different inputs, you'll notice that the mid knob is a pull/puch pot. By pulling, you activate a mid-boost, to give you some nice warm clean tones. Even at extremely high volumes, you will get no buzz or noise, and no sound until you start to play, unleashing the power this baby holds. It has 2 gain KNOBS as well as a master volume so you can get that high gain 80's metal tone! This amp also has an effects loop. The ohms selector is adjustable from 4, 8 or 16 ohms. It also has switch on the back to adjust the amp for 120, 220 or 240 volts so this amp can be used worldwide. The distortion on this thing is monstrous. You can go from Metallica to Pantera to Green Day on this thing without missing a beat (now that's versatility!