DESC: The Blues Custom 30 combo is designed and engineered in the USA by Gibson. It takes the competition down at the knees with pro performance and features at a phenomenally low price. Dual-channel 30W AB operation (pentode), or 15W Class A operation (triode) plus independent or interactive tone controls and specially designed Lady Luck 12" speakers by Eminence are impressive enough on paper, but when you hear the tonal quality and feel the organic interactivity you won't believe your ears. The tube rectifier provides bluesy sag while tube-driven reverb sounds incredibly natural. 3-band EQ plus added mid control on the hot channel lets you dial in hard-hitting definition. 12AX7 preamp tubes with DC powered filaments operate very quietly.