Among the various VOX tube amps, the AC4 has remained one of the most popular over the years, as they provide a simple and hassle free way to enjoy the rich sound of a tube-driven amp. While previous models were equipped with a 10-in. speaker, this new model features a 12-in. Celestion speaker that delivers even more robust sound levels. This limited-edition carries on the classic looks of the VOX tradition. This is a Class A tube amp that you can enjoy whether you’re practicing at home, performing live, or recording.The AC30’s Top Boost sound has fascinated guitarists around the world for over 50 years. Capable of massive crunch or the clean, classic “chime,” this Top Boost tone is the essence of VOX’s identity. The AC4 now delivers this unbeatable sound in a portable, compact body. Gain control, Bass and Treble tone controls, and a Master Volume allow any player to easily recreate this historic sound.Power: 4W (tube)Tubes: two 12AX7 (preamp); one EL84 (power amp)Speaker: 1×12 Celestion VX12 customImpedance: 16 ohmsControls: Gain, Treble, Bass, VolumeInput/Output: Guitar Input, external speaker outputLimited-edition designDimensions: 15.98 in. x 8.31 in. x 17.76 in. (406mm x 211mm x 451mm)Weight: 23.37 lbs. / 10.6 kg.