Three switchable tube modes give you three distinct voicings from the 12AX7 and EF86 preamp tubes, from chiming and extremely clean tone to aggressive high-gain growl. Every nuance of your performance will come through, thanks to the AC40 Deluxe's extreme touch sensitivity. And it's the perfect match for your overdrive and effects pedals, as the power level output control makes it easy to dial in the perfect balance of volume and power tube saturation. The open-back cabinet design allows the single 12" Celestion Creamback G12H-75 speaker to deliver huge tone and a massive soundstage. Made from Baltic birch and dovetail-jointed, this ultra-rigid cabinet is built to last and doesn't sound honky or resonant at high volumes like some cabs do.