The Ace Dr.Blues uses the special "ultralinear master volume" technology, introduced in the Fx Amps amplifiers, designed for playing at any level, even very low levels at night. It has a 20W / 2W switch for the most quiet conditions.

Thanks to its no-Bias system, you can change tubes yourself, at home, without any extra equipment needed. Freely choose between 6L6 and EL34 power tubes, or even mix a 6L6 with an EL34.

• Single ended Class A 20 Watts all-tube guitar head.

• 20 Watts switchable to 2 Watts.

• 2 channels.

• Tubes: 2x12AX7 & 2x6L6 swappable to EL34 no bias needed.

• 3-band EQ for both channels.

• Tube buffered effect loop.

• Speaker outputs: 8 Ohms + 16ohms.

• All aluminium chassis, for minimum noise and super light weight.

• Custom oversized transformers and high quality components.

• Super 2mm thick and durable circuit boards, with double copper thickness for better repairability.

• Optional footswitch for channel switching.