Somebody earlier asked about distortion figures for the Aleph Jzm. I did a quick check of my build on an 8903B analyzer, into 8R cold. I forgot to note what the output voltage swing was.
20Hz, 0.5V, 0.067% THD
1kHz, 0.5V, 0.1% THD
10kHz, 0.5V, 0.42% THD
20kHz, 0.5V, 0.75% THD