WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
I didn't measured it but i count at about 8w power output. It has a lot, lot of gain and with my tqwt speakers i'm using it without preamp, at about 1/3 of max volume for very loud listening and for normal listening at less then 1/4 of volume.