> Is there anything you'd recommend as a way to *reduce* the level
> of the oscillator, in that situation or otherwise
>
> andy butler

You may simply turn it off. If you want to adjust the relation please refer
to the additional technical documents on our website:

www.doepfer.com > PRODUCTS > DARK ENERGY >
Dark_Energy_technical_information.pdf

The pin of JP6 can be used also to apply a voltage in the
range -5V...GND...+5V to adjust the relation between internal VCO and
external signal (GND = same level, -5V VCO only, +5V external signal only).
If a jumper is put on JP6 -5V are applied (i.e. VCO only).

Best wishes
Dieter Doepfer