Can I use the Spark Control/Spark Control X with the Spark NEO Core?

Yes, both Spark Control and Spark Control X are compatible with the Spark NEO Core. Please connect them to the Spark NEO Core via the Spark app.

For more information, please check:

How do I connect Spark Control to my Spark Amp?

Connect Spark Control X to Spark 40/MINI/GO/NEO/NEO Core