Frequency response at full output (left)

Frequency response at full output (right)

Distortion in ultra-linear mode at full output (45W)

Distortion in ultra-linear mode at 1/2 output

Distortion in triode mode at full output (21W)

Distortion in triode mode at 1/2 output

1kHz at the onset of clipping in ultra-linear mode: 1.3Vpp = 45W

1kHz at the onset of clipping in triode mode: 1.0Vpp = 21W

Square wave at full output in ultra-linear mode

Square wave at full output in triode mode