Thank you both for the replies. The Orbit in low mode goes a little further into the audio range than the diode chaos but it's like using a nuclear bomb to shovel your garden for my purposes. And it still doesn't go as far into the audio range as I would like. I find that's the case with a lot of oscillators and stuff with lfo/audio rate switches too.
The Hypster seems just about perfect, relatively speaking. Neither of the colorfully named knobs are secretly a range knob, are they? I haven't been able to find a demo that shows how low/high it can go and the documentation is a little sparse.