I just want to share a tip I haven't seen anywhere else, I thought this would be the perfect place for that!
I clock my Eurorack modular with Ableton Live using the AC coupled outputs on my PC.
They cannot send out gates so I use single cycle waveforms instead, played by Simpler in Live.
I turn it up real loud (it clips) and then it goes directly into my modular, giving me an adaptable master clock signal (I often give it bit of swing).
It works because many modules just need a rise in voltage as a clock signal like Maths eg.
The single cycle waveform I use is a crooked sine, dunno why I've made that crooked, it was trial and error a while back.
So even if you do have DC coupled outs, I think it's a waste to spend them on clocking, this technique works solid with many modules.
Cheers!