GUITAR COMBO AMPLIFIER 'Inspired by the classic AC30, the new AC30S1 One Twelve represents the evolution of VOX's iconic sound. With 1 Celestion VX12 speaker, designed specifically for the AC30S1 and 1 channel inspired by the Top Boost channel of the AC30. Power: 30w RMS (16 Ohm). Controls: Gain, Bass, Treble, Reverb, Volume. All-valve design, with two 12AX7s in the preamp and four EL84s of power. Digital reverb. FX Send / Return. Jack output for external speaker. Size: Width 658 mm x Depth 265 mm x Height 550 mm. Weight: 24.5Kg. '