Blackstar S145 Guitar Combo Amplifier, 45W 45 Watt, all-tube, high gain combo with Master Volume, Resonance and Presence controls Tubes: 3 x ECC83 (12AX7), 1 x ECC82 (12AU7); 2 x EL34; Speakers: 2 x 12-Inch Celestion Neodymium 2 Channels, 4 Modes: Clean (Bright, Warm); Overdrive (Crunch; Super Crunch); 3-Band EQ Exclusive ISF and DPR controls; Emulated Speaker Output; Series Effects Loop with Level switch Four-way foot controller for changing modes; also responds to MIDI switching