Crate Blackheart BH5H Little Giant Guitar Amp Head, 5W All Tube with Attitude 5 Watts, Single-Ended, Class A Volume with 3 Band EQ Outputs: 1 x 16 ohm jack, 2 x 8 ohm jacks, 2 x 4 ohm jacks Pentode (5W)/Triode (3W) Switch DC Power to filaments for super quiet operation