Hello maginy,
Are you into building and have excellent soldering ability. The finest diy paint-by-number theremin design does not need an engineering degree.
I have always thought that a theremin sound that needs a reverb band-aid has missed mark.
Edit: What I think is silly is when someone thinks a theremin should imitate and sound like something it is not. Because a digital piano has a keyboard should it sound like an accordion? A good theremin sound is just $5 in parts and a little bit of knowledge.
Edit: My low end reminds me of two mating walrus' enjoying themselves.
Christopher
www.Hwy79.com