Possibly you’ve checked or seen...
https://relsupport.zendesk.com/hc/en-us/articles/115004486647-Monoblocks-2-RELs-Connection-Method
They provide some logic around why 2 subs are their recommendation, but it didn’t seem that it was a connection limitation or use.
I run my REL via LFE out of my DEQX, so I no longer use the hi-level neutrik setup. I did run it off of my monoblocks at one point, unsuccessfully, as it created a hum and the amp manufacturer recommended adding some external component to address...which at that point I was no longer interested.
https://relsupport.zendesk.com/hc/en-us/articles/115004486647-Monoblocks-2-RELs-Connection-Method
They provide some logic around why 2 subs are their recommendation, but it didn’t seem that it was a connection limitation or use.
I run my REL via LFE out of my DEQX, so I no longer use the hi-level neutrik setup. I did run it off of my monoblocks at one point, unsuccessfully, as it created a hum and the amp manufacturer recommended adding some external component to address...which at that point I was no longer interested.