Welcome to the forum! It’s been a while since I had the Subharmonicon, but yes, there are modular-level audio outs for each of the six oscillators available in the patchbay. As far as I remember, they adjust to the sequencer and the quantiser settings. However, I think taking them directly out bypasses both the filter and amp (and their respective envelopes), so it’s just the raw tones available at the patchbay oscillator outputs. Someone with a Subharmonicon can confirm this.
I have the Subharmonicon and Jumble Henge, you can take the VCO outputs of the SH and send them directly to JH but you would be much better putting each of them through a VCA each first for adjusting volume (if you get a multi LFO like Instro Ochd you can have lots of fun modulating the VCA’s) Jumble henge is then very good for filtering and placing each voice in the stereo field.