This is not an auto-Wha I find it a good old analog envelope filter 100%.
I have a U.S. version in 1980 with the 24v wooden box and all documentation.

For the rest everything was already said.

UTILIZATION

Pedal a bit touchy but with which one can get sounds incredibly funky.
I have often heard that this pedal was complex to resolve, it was galley ....
At the risk of not making friends, it's super easy to adjust even if there are more than 3 buttons.
The important thing is to tame the blinking LED

For those who do not have the doc is here: https://www.ehx.com/assets/instructions/q-tron.pdf


SOUND QUALITY

Is just huge, with a distortion pedal at the output we get to have worked very sound (Maxon OD808) Purchased

OVERALL OPINION

hand because I wanted to do casseroles of funky with a nice vintage pedal, I discovered a rich and full pedal.
I tried Auto-Wha and we are very far from what they can offer. The Q-tron is a huge step above.
Can be self-Wha with a Q-tron, but it is that using 2% of these capabilities.
What a difference a Wha-Wha? Bin Q-Tron and it makes WHOUuuuaaAAAAA WHOUuuuaaaAAA MMMHOUuuuaaAAAAA RRRHOUuuuaaaAAARR also

I'm not ready to part with it, and I would do this acquisition without any problem.