VHT AV-SP1-6 Special 6 Combo Amplifier 6 Watts One 12AX7 Preamp Tube Footswitchable Boost Mode 4, 8, and 16 Ohm Speaker Jacks Mod-Friendly Eyelet-type Board Power: 6 Watts One 12AX7 Preamp Tube Footswitchable Boost Mode 4, 8, and 16 Ohm Speaker Jacks Mod-Friendly Eyelet-type Board