The great people at Bugera hooked me up with the very versatile G20 Infinium tube amp in sponsorship of my upcoming guitar courses – Guitar Super System Level 3, and 5 Exotic Guitar Scales & How to Use Them Effectively. Both of these courses will be released in Summer 2016, and if you want to stay up to date, you should subscribe to my Fretboard Friday email list. The Bugera G20 uses a technology dubbed 'Infinium', which regulates the two sets of tubes' voltages in order to extend their life up to 20 times longer. There's even an LED on the back of the amp that lets you know about the status of your tubes. The G20 has a morph knob to allow you to emulate both US and UK styles, and touts an overdrive channel ranging from biting crunch to heavy, warm, saturated distortion. This amp rocks and I'd recommend it to anybody on the market for a well-rounded, reliable amp at a great price point. Learn more about Bugera at their website: http://bugera-amps.com