Yesterday I returned from Superbooth 21 and among many other interesting things I got a quick walk through of the Dualchord expander. Now I'm facing the problem that I already have all 4 NSA slots occupied...

I would really like to know that too.
I did post a sugesstion about an "Expander expander", but due to Super Booth (I guess) and my vague formulation (I guess too) I never got the answers I looked for. Here is the post:
https://xor-electronics.com/forum/showth...p?tid=1204
From what I understand adding more expander incurs several problems:
- Addressing the NSA (everywhere) increases memory consumption. Memory is already tight.
- each NSA puts strain on the Bus. Eventually there will be timing issues
- you "only" have 8 tracks . Where do you wish to place the NSA's 5, 6, 7,...?
To be fair to my knowledge there is no other Sequencer in Eurorack that can do as many CV and Trigger outputs as the NerdSEQ with the current 4 NSA. AFAIK the NerdSEQ is already leading by a large margin. E.g. a setup with 3 x CV16 and 1 x Trigger16 gives you 48 CV outputs and 16 Trigger on top of the 6 CV, 6 Trigger/Gate and 6 Mod of the main module. I think that is quite impressive
And if that is not enough you can always buy a second NerdSEQ and slave it to the first (giving you 4 more NSA and 8 more tracks...)
If that is still not enough then maybe resorting to a DAW is the way to go.
Kind regards,
Michael
I am not critizing anything, and love everything in the XOR universe, incl. the great support/contact. So it was out of curriosity of what the limits are, not critism ;-)
I have been thinking of a twin NerdSeq, but that will be later :-D
Power (current) may also be an issue with more expanders (still talking beyond 4 expanders) all run from the NS, but that can be solved with a power connector on future expanders.
Can you talk a bit about the Dualchord expander? What does it do? Is there any demo? Amy video?
<disclaimer>
I obviously can only talk about what the prototype did and what Thomas hinted as to what the final version probably will do.
</disclaimer>
That having said:
The whole thing consists of two (presumably identical) units and I'm describing one of them.
It is a 4 voice synth/oscillator with a couple of cool waveforms among them a supersaw. There are two pods which are freely assignable. E.g. Tuning and Spread of the waves (in the supersaw; I think this also goes for other waveforms but don't take my word for it). There is a Sum Out of those up to 4 voices and a Gate/Trigger. On the screen this is supposed to be 5 columns (similar to the CV16; 4 for notes and one for gate/trigger). All that times two
Sound wise I really liked it. There is clearly a use case for pads, but you could also use it for (multivoice) melody lines etc. In my current setup I would remove one of my CV16 and also save on a few oscillators.
I'm not sure but I think Thomas had shown it at least briefly in one of his previous videos. Not sure he played it then. The prototype has/had 4 redish pods arranged in diagonal pairs in the upper and lower half of the module. Under the pods are the two plugs each. It is either 6 or 8 HP wide.
While the HW seems finished the SW is not.
Kind regards,
Michael